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c W5I i'llOIl)' Iha, 'Onlconc irl ~JlI...:tt:d i, " nd observed Ihe d~· fc",,1 al (he I inlc
or
Th<.'f"Cfore, p[aill ti trs I'roof Ill!ll ,he Ikf"':l \\";. j I'rc:><.~'1 at I he lilli e of II.... l.1tc m il_II be cin:lun~l a .. ti:1!. 1r;"i"J; the b,iller ""dr.: tt> the 1Il311"r:OClllrc r ~ lltI s ho",;ng Ihal Ihe llo:f~"C't W:I.' nOl c~u""' b)' 3Uy in!ervclling ~cL. No> 0 "" pcr~on ca n ~ccuun1 for e"cry """"n d o r Ihe hodder's li k If the 1)"l'e of defect "'''rranl ~ ii, the p urdl :,,,,r, a ll }' !It· tC[\'clli"l: o,," n~r:>, ~!ld Ihe \,Miou~ "~~rs or the ladder should be clll kd In 'i.-;Iif}' rllu\thcy did not clwnge rhe ~onditio" "f Iho I:ld dcr. Th~ imll1cdial~ prior ~ s" ", and Illc I,binl iff, mllSI d~"<;crib~ lhe conditi on of the rek "am po n ion of Ille lnddcf illllnedia tciy prinf to lh~ il~ci· d"~lI.
The ,·.[1Cfl m u" gi" c his 0 l'in;on th;,I . h;l~ o n his c'\;am;" ll i'" 1 of 1" 1.' ladder, his c~p.:ri,'I("1: wi L" bdll~rs. his kJOowkdgc of l he m~n· nf~clu .i "g pro.:~ ~1\d Ihe 1"",;mOll }' of Ihe "Ihet wit nL"'....... 10 !he flriur u"'" a nd ..."lIdili.lIl " r the la
"","',
j 56,O!l I)
lil'l: at the lime il "'''~ .wld. The jury C":UI II,C"I' r:tlllc!ullc Ih.. l lh" Ikf",-, (lI"doI:". m the lim ~ uf Ihe sale. '
..-:IS
TIlt: def", dnnl mil>! :1110111(>( 10 idcmify rom. chonge ill the 11Itk!: r oillct: il~ li.ale n n ~ Iclale Ih ~1 change to Ihe cauli.e of I h~ ~cc!d<'!It. [b}-Ilid the Lndd er Urenk lIefore or After
t~ e
Accidul7 111
many C
The mere ra<:1 Ih ll , h. b dtler w:It. do::fonned .. flo:r Ihe ~ecidell\ doo!s IIUI gil" rise 10 no In fcrcuu .hl il wru; d.fonned before Ihe ,ea(km. ' If Ihe proof i. <'q\lu ll )" rons;"tc'l! ,lIal Ihe dd~t!i l'e roodi .io n r
The qU~"Slio n Il ~u nll)" lurn , On tho lc'limon~' oft h. plaill1ilTin describing th e ncc;d~lII. n~)" erewilne., II"ho obson'. d lh ~ f(lll . aull/o r an c.~pcrt lI"ilo :tI1.i!)'lcS Ih. e"ldcnee and Jliws hi5 op ini ou (I.! to what
' X<.
<.K•• W/oi 'i" , _. Ch.""""'c·\\,hi,.",.n Co., It>l A.D. ~J~. J6 :':-" .S.2~ 4 (1'1-42 ). A " X>/"<, " ..I0Il h<-tI, )0<14« I>j, ,""lr ~'l"
injIo,," ..
''':1''','
,Ioi.
• Ii.>,~ ' .. 11..0. W.." ., C .... ~ I'H'.ld 11lS{irlh Cir. t 9W).'I'I'I)i", Midli"n 13• . A l.doIn" wtt.P""I and rd t .... I"" pWllulf .·b ~. lor. ",.~, in""nin .... 3n("" .... "" ,lor. roof or. h""... TI,. rWOliIl""H'...,.. ' .... tir..... th.( .wo.m.,..... In d,. I.>old • •• "'hich "'Of< «>·<.10\1 "',.. ;, r,11. "''''( b••·• f'«o
.,I
> Hon" " ,'. milt. J4 ".D .2~ !Og, )$J N.Y.S.ld 51? (1~7J). Th< I'I' ;I\llirw ... in· jU!
.,i
,I" 10"""' ,',,",I'. jlldJm"n! ;1\ (,,,or o{ I)", I'bin'iff ~" 'h, fro'Hod ,II,,, II" 1'''><10",1 hy Ih< ftI.,i,mfl" ...," "'1",11)' ,,,,,",,.10'" wi, h "fi ndi ,, ~ ,hot II,. ... f.OI ;" lhot la"
<.",,,1 'h, f.u.
.,-,,,,,
,, I
l'nOIl. ).IAn. c~me fi~,.
the by Ihe jllry.
tkfoml~t ion
l'IIACrJ(; ~
(WIDll
or the fall,· ' nlc m;, "cr
i~
then rc:soh'cll
eumpk the pli,'ntiIT mal' t~~lify thnt he oo..os 110t \.:no,"" whet her he fell 0" Ihe ladder. or the leg of tile bllller lx:111 and then he fell. Bill ht ~ r.x:.11 that he fdt m()\·tm~1I of the bddcr befOf'l: li t fel l. The JUT)' c<>uJd tonc!mle from th •., 111:11 the leg buckled or .lip"•.'d. or both, cau~ng the pl~i ll1irr to fall! rOf
[c}-Violation of Sludard." The ,·;olalion of:\ n,nndato.y TilqU!r~ncnl of a ~1~ lI da.d permils the JUT)' to dct<:fm;nc t hat lhe ~ rod IIt t "-as dd·cctiV1:.' !'Dr cxnm plt, whc'" 1h" A,mricun Sl:lnd~ rd ~.1.rCly for J'orlablc Wood Ladd ers rcqu irc"ll lhnt all bdder~ have m~1:l.l spT¢:ldefS, Ibe o f a ...·ood ~ptt::ldcr ~mlillC'd 'he jury to conclude thai th., IItfcl1d~nl'~ I~ddcr lach-d ndcfjunle slrength.'·
Coo.
Till: de;isn of m:m)· laddc'f!i fCCt.-i" do lhe c<:nific:llion of ~ ppm\"U1 ofth.: U"dcrwrittl'S Lnl>oral ory (UL), hl
com plic. Wil h Ihe UL M;I!1d:1rd!lo.
Any
~(Irr~"'pOl1dL'f1t:<: \)<.'IwC'C!!
•
the UL oml the
s.:.. ..
m;lIluf~~lUrc... ;.~
"1'1'
s.~,c~. Uf,iu. , .• R<>
,,,,"<>'
u..., 'h, I"o
",id.,,,,,, ....,
r...
, (""iii II.". M~ntgm"
,,,,,In.d
• S,·';;
'"'d,
,.... "",
, N.02( I]
Dflcn ill fo rnmliw. For c~ lunpk. ill unc in ;,mnl"l:, Ih~ L' L i" fo rmed dcrt"d:mt·ma "llf~C1l1rcr Ihal il ,,·ouk] ,,·;, hd rnw il ' ce rtiliC"lli'Nl
Ihe if"
~Cflilin dc\i~1l
dliUlgc were TlOt m ad c. The l·orn.,;pondcn~~ wa., in c,·i dell"~, rmd plUli lh·c d~m~g", V;t.TC ullilllatdy ;,wan kd " p illS( (he m~m,f:>chlT<:r. " immdu~cd
[d]-CoRlpl i(l nce with S tnndard." Evidence of cnmplian ce wilh a >Inn d~rd b adJ1l ~,--.ii>lc W PflWC Iud: of nesli\.'t:llcc nnd Ihal Ille lad· <.It ' ....~ not d&":liw. Hnwe'..... , Ill(: \I.·c');hl 10 be accorded Ihe ~"Ii · lienee (;(l illplia ln."c is for (lie jUI)·."
or
T he be l Ihal " b dd(f 'l1~e,s It..; :lp« iliC"lliQns of Illc AN.!) ] 01 V L sianda rd. d Cl<:S nnl L"Slabll
When an ~I""rl ''''Iilies lhat Ille bdtkr wa~ dcf~"CIh..." a qU~"SI in .. Ilf fa~t ~xl'l .. (,,""s pi le K"S limnuy (hal I In: la dder meciS Ihc app lic;lb lc m ini mun ' &1:md"nJ~." 'I C~ lI " .1! , .. A",,,rilh, 110 ,.1 ..·,,,, C" .. 1:6 K"". ~"! . 001 P.l
" s,,· ,rojns ~
' ~.O}.
Il <:"lIin". ~J""I.<''' 1
bw
II" 1,,,l
~ill""
t<"' llro,,1 tl", Ih, "", lL. " "'"" Ih< ,.,n",
'IL," il ~o "'rl""l ~ ill, ,b. UL C"k TI" '",,"" al ......
".1, ~,rM i,·"
,lL~~·«I
So·" ~!1>J ~'M
, .. Wh ile M"ol R~IIiL\tI I< S,.,,"t'; L1! C"'J'.. '$ 11"",,1,. 10 ~::9.
61~ !19~).
" ' !.nOn"," , .. 1\1"" w"",·,,· ~. 1"0 .• I rot! JU. J I? 1' 5 ,\ . ~d 2(,1 (19 7 I). Tho plioi o· lill" ~a, u,ln_., I,,,!.!,, ..·hid, "." ,...·,,,d ,""I p"""'",,,1 by ,,,,,,b.;,,~ !'lin' ~ I.,.,.... "00' ,bcl:d.l" ........ ,...-d . nd I,. "."" ,1,,,,",0 ,,, III< pOlllld. 1bc """" oil·"",,,, ,I", ju~ ~ ~ "", ro, 'he rI";l11 ilT " "" <1...;"1 tof II" M ,.don!", ",I~~~' (," • ,I,, "" t<~ " "IiOi. TI", "~,,, "'~,,! !I"" the r"" Ih ," ,I,. lao tic, "1<:1 all 1)'0 ' r
" Id.
s, .. ~l" (',..!tio,'. j.\n",p)mr,y W.,d.l: Co.. 1 1 11l. " PI' ~d 610
IOl7. } IS :-I . F..2 ~
{197 '~
,.." ,,',
I'IIOU. 1.1.\11. 1'/t.\C/lC I: GU IIU:
Th e fne[ lhat the d~.,;i Bn of Ihe lad.J cr ilIel the o\:III<Janh , "lid lh lll it ~h"J.I)d not r"i ) under 1)1l: C(lIIdilim)5 :IUe&od. I!\~Y be 115o;U 10 ~.... a'" li.Ji Ihm Ihe bdd~'r in 'I1I<">lioll oon l~ ined a nl'IIlUf~clUri rl$. d . f<:<;I ,"
[2J
Commun EYidrnli:lry
Issn~s
[n)- Laddc!r Uan,.. ilabl" f", T,i ~1. If docrc i):l. d efeet in 110. Ind. (kr whk h is visible, tilCjllry wil l W:lIl1. to..:c ii , The p)uin lifl'~hou l d idcmifr the ladder Mid I, ~~; I 10 cxphti l1 his l~'limony, Tll ~ p];limirt's Cllp
[b }-Su ~utnl JkolIW' Ch."~-.:," T h e Itene. a l n')I1 ;~ \h:u c "j,
dellt" I" ~ I
:t
" 5.,' ' UP'"
d cr.... ,d:ml-maIl Uraclur..-r clla nt:ed Ihe des,!;" u f Ille lad, ~
lo_OIII JI_Jli),
II M ,C~ lthy~, f lurida L>dokr C... , l q, So M 701 , r'b , I)i"L CI, APr-
,. .
1!'l~ ). """
~"i~t;ff ., • • i~ju ,"'" ", a I«IlII "f,~ , U. !"<
",',OJ,,,,
" ul "pl:o"OIj,x), Th. ,~'" " w'
.. N"bn '-, ~"f Mf.. Cn., l ~~ 111 , App, :d "r, ~&\ ",£,~ d !I»(\~:Or, lbe pl..li"lin ",,,ughl . n '8ai"'1 mouuf",,",
""ion
,n,
rn,
It s.-"J:o'""",II, I~ I'N'~" .rr. ~ , FriNDI.q, ),,<>dum U,bil,lr,.IL 2. ...\-bl"'f.x,u,' ,,', " " bolil}' in N,~ I ;_,< ," f :'ZI.{4J (M ,,,h..., lk1\,l" I n7) ~,Id~!r. J, -S, n,. Li"bil il r," t ),I)1I,'J (Muuh,w 1i. ".I" lno), ,'~
''''
Iv\OllEItS ASI) SCAFFOLlIS d~f afl~ r Ihe ~ccide .. t is tlO!!;;g" wa~ tl~f..'Ctivc.:O
nOl admi~iblc a.
I 56,02[2}
~n :«huiM'ia "
Illat tlo~ prior How.....'c r, tllo; C"'IIlS" may be mlmi"... bte for ath er l'Iurpo
pbimil1' IIIay inl roi!u.:c proof th:11 the mmm[:LCI\lf.f SlIt>scq\lclllly marketed similar bdd.,. with side ra ils of a dm'e rent deo;ign." (c)_S"nillr ~ble!' I!" idc" ""
"ccldent~,
liv id':IICC of ~inliL'r
~r;o:; id~nts i ~ ~dm i.·
orII Ixk of n:porl,'(J ~imj lar ac..i lknlS is :lobo oom~
~iblc. ..
~
Prior ~ imilar accidents arC admissible to eo; l ;ob li~h the pr(seile.: of defect in Ihe d"";gll or m~nuf"ClilTc of the laddcr (lI1d to ,how tha t
Ihe dcl'cnda" l ...·3,; 0'1 no ticr of t he defect;,·" condition." Su~u enl "S.~·,
ISuPf',
".iI.. ,Im_ llov. 5, ... An", I IN,IS (l9i :!~ C~1tI R... ~to1.
)9~6),
" C.nl.oIl ". A",,,ill,, 11 ••d~'.rc Cn .•
n'
J lJ·ll-1Gl
K:m, 63 1. r,o~ l'.2d I J:!I; "? 1 ~),
l'1~n·
tirr . IN ...."" iDjurin ", 11.n the todd« he " 4' " 'iog io a r '''I'
.h.
",,110»1«1. , h"",i~ 1M", 'n 1100<. """"'.. ,bOl 11>0 ""'nur=~ ... chanp! il> ""'i~n in ~,01 ,,'~ ",,",,11.., Ihe uil, of 110. 1.M«" "'-" . "",""lk '0 ,h" ..- Ih" d" " ,f, mb", ",,' jn ""kl... di"e~,d <>f Ih . pl.,inlifr, ,11'!.1> b)' nol u,;,,~ 'h< ne ...
--
"""Ii,
. . ,~. ~ I-,lO m . API" 3d "H, )lJ to." .E,2d ' l ~ 1 ] 'I7~~ i't..inlilT .viT<,«I mulliplo r"'''lv,,,, .. brn. ",lbl'lcoJ
"""t:..Id.,
I>
"'''",!''''
i,.
"5.,( ~'·'k',.II!, L, "run"".!.; ,>\, Fri,d"" •• ]·mducl. l.bt>i)j.),. ch .~. "Sn-icl U.l,.oi\· i }.0411]("1 (Moltl .. " I"",
it),."
" !jo"~II<'~,""II" 1..1'r~ ,... , .\ M. Fri..-.J",,,,,,. I'ro.l,,,,,, 1.(:jb; ~t1.C~. l . "Sui", "y.- t l .OlP J(b] f~"""- Ilcodcr 1~56).
Li,bi ~
" ('_""<11,-. ,1m,,,,,,,, lu Rl"·,,, Co.. 116 II , ,, U J. Wll',lol n1 6f]9~ t'l.m,iO' "",,,in"" i "juri,~ "'h'n ,I", 1:><Jd,,~. ",., u,,"~ in" P'''r<' ",.nnor ,ud"'.I)' roll' f"
rid·, ",h.. t>y C'QItrifUJ"', 10 ItlMkrl . 1K b,W" ",-m atkt it ..."" pot' on POI;';" of ,Ite d:tM,., 1>r .h. l·nd.r"'f~"" bbo.-"o,;"· ....... nd tQ' "",a:ti,e n.., \u,o>,.oo ~' .. loa" five "'h
,>
or
~
56.0 lIZ1
1'llOll. UAIl. 1'I(,\Cna; G\JIIJE
similu r
A l:1~ k of reports or ,imibr accidents i~ lilroo Qdmissibl ~ under apI"0l'nnle .;in:u m>lan~'eS." Tht abse nc~ of ~n)' similar :ll;t'ido:nl' it
imposfiblt: 10 pro'l<', a,1\! MY ~""idtm;c o-..eTling tl1m r.~tl [;).;ks proOO· li" e rarc•. TI,e most that cn" usually be ~tal.'tI by a mOIlUr:lC LUn:r is th~ 1 they ha\'~ !I01 T(.'cci"cd rcporl. of ~I\y ~imilar accidenls. It would be sp.:<:ulallou to a,sert Ihu\ there hal'. not b..'1.~1 an)' similar >J«Ukm!>. rdI-Ex(lCrl'~
TestimDn>',II Ladder e~flCrts arc u~ua [[y me· clmukal cnsin L'C n;. " However, ~"c.~l"'rl dOl."S 1101 hal'C 10 be a eltauicai l."I1gin oer. An npen crnfr~man II'.'~ ""rmilled 10 I<:st if}', bMed On hilllO y,'tIN. of " 'Of): wi. It ,,'oed, I h~ I .be mil of a wCKXJ..'I1 Iadd~r broke ","'C3U'. i. lI'as cO I1~ lrucu:d of lI"fit wood "nd 1111.1 n groove was cut dC~l"'r lhall I"'rmil1Cd un der a ladder standard,"
m.-
H. Gol" ¥.
J\"'OJ""",l:uWcr Co.. 16' Wi.. l1l7. 16 2 K W. ll9 (1917). ,\ JWnlc. "bon !hc l.d".. ~< "'''' ....', C
'»lu,""
'h,
".Y
"St<>~1"" § .%O I I~I·
Se, Illso ch, 12. "Prod",( Dpcn . _ PI.inlin', Vi,,,," p<'h _ Dc"co", Vk ...."
~od
" .... 1) , "1' ,,,,1,,,,, E,·
S.V I
"r«'''''' II 1'. !;;tI1«., AtWM),·. Guilk,n U".!it>«'inr. ch. 2. "TIt<: 1'0-
" 1. ~ 1. I( . m lle: \:u<>f
""'i.........
~ ell . .10. MM.rn;". ~nM (M",!hcw 11
.. Wil<"n v. 1.0.'-,', AIhoOOro 1I"du, •. 1,,<.. ~j') S .C'. 6toO, 1 ~ 1 s' F..: d SOl (1 '163), Tho pl,iolirf "" .., ,hrown ,~ !l>: 8,,,,,r\d ond i'\i UfN I.dlk, h. ,,"'" ".,;o~ 10 10k< do~'o liJhl bulk, b",kc:. Tho Sur .. mo Cou rt 0' No"h Camlio; in :ul "'i";,,~ lho 1"'''''00)' "' . ' ... n .... o ,,·h o hold 1"'1 l!-.e ",,"'Of ''''''' did 1101 <\",Iirt
'he ""'"I,ll,
,,1>«, ,h .
«,
""3'
'tl
.....,,".
,
i 56.02[3]
!.A[lIlEIIS ... :-Ill SCAn"oJ.1JS
,~,
An cXp<.lrt in e~perl witne,~
phy~ical chcmi,[ry "nd metallurgy may le,lif), as an an the properties of met'l! ladder,.'o
Court' hm·e. On particular f"~lS. cxcludc'tlthc testimon), of a meCh:luical engineer, in pnrt became the engineer )tad no experience
in the (]("Sigll or llmnufacturc of ladders." E"idcnce of te,ts dOlle by the eXp<.lrt arc admissible '" the basis ofllis opinion. Evidence oftL'S!' by the expert showing how the acciden[ happened are
lIdmis~iblc."
SOl11clinH:l;, the defendant's experl will tc,tify thm he [O!';lecl the Same modd ladder am] it met the applicable UL standard, and plaintifrs expert will le,[ify
th~l
he had
c.~amincd
the ladder bill did not
perform :lily tests!' Thi, does !lot preclude the [llairllifl's expert from
toslirying to n
DcfQCt~."
In on.
c,,~c,
n Ihin wcll and Onngc'
" r-;",,,,u,,,,, ,'. Whi« ~101U1 Rolli,,~& ~"",pi,,~ C'''p .. 75 W"h. 2d629.45ll'.2~ 619 (1969).
'0
Sc,' al", 2 1. Kupo:""in &. N. $,ilo,"" ,\1Iorn,)"', Guido Ensinwint. <11. 40. '"F"Huro Au,I)"" of M"l
"",,"0101"
I',
\loot!, 7 Mich. '\PI" ~3, 1~1 ~,W.2d 210 (1%7), The pt.,iotin·
b'''''gil' ,\1\ ""h", "pi"" tho nl
to".,
"I"',i,",< ,h,
" Nonl\l,om ". Whit.Metal RoIlin~&. St'mpins C"'p .. 7~ Wo,h, ,d62~,4S3 1',2d (,)9 (l9M)_ Th, pt.intin" n, injured ",)",n 'ho bdd" h. ~'"
.!t"
''In'''
" {d_ J>
s., .. '"J'''' ch. 7, "]')'1"" of Ddo"","
,,,.<10
"'~W:
from po .. Uoy ,"',ieh eo .. ld bud;]" if n", fOOl was Im
A
~
ri ,'d hole I;OlIl d C;'UIiC a I) dtlcr to
A miSYillg safd )' cleal hook 10 /;odder failure and ;njnry."
ha.~
colb~. "
00" fo u"" to have co"" i buleU
A 8' Q()\:c o r inC " ;''''' may Ix: CUI d<1:I"" Ih.~" pcrmin ,'" by Ihe 130.1. dcr 'I~ndard, C':\ming :, t nil of n wood eo hodder 10 brt'
[4j-)!tsusc." M i~u:;c may be Ih~ tame of an :Iccidcnt. A nli5use " Collin' y. Maal,<:<>m
"',,"'"C>,
"1'1" l<J Ion ~ I' KE.!~ 671)(1 'U),
"
N"",l.:"'~
Jt
!.: ill ~. Sti ......-..r Dn>, $Tot" C(o" l$ ilL "1'1'- 2d U!I. 151 f".E.2d)O] (196-)).
".f<: Law.
". SlwcCo".. cI
~1 1'.R.O. ~ ( fl. 1)0:\.
196'JJ. 'I,pt)'j" g I,...,.
"IJ. ' 0\\';1\00 v. L"., c', ,\:JotlooM 1I00d"",c. Inc., 2W :-I.C. b6Q. 131 S. P_l d
~I
(11/6)>-
"
~l ilL",
v. St.;. r
S,·, ~I,,, ,'"P'" t
5{;,021111.].
S« g,,,,,,,lIy L. F,unocr k
or', !.i"lJHity in
~I,
N,~lig
it
l'rird"'.II, I',odu", li,bHily. 'h, 2. "M.nur""\ ~ , , 2,l l I"j, 2, I~ IIII (~J.,ltlt<~' II,,,,,,,,, 1 ')~71,
., .~·....,"p,a cit. I l. "0,("",:; ,,1oJ II.'....
!k< at", V. wnLkow;.k. cd., 19S6 SoIlI L,.n, M<1h",!i", l:"i"''''I)' I'md'''b lb~il, i1)' 1"\\; (" 10, Enl"Si "~ Tr
",\Iiu"",, _ n. Mookm 0'1' I'h
"-*1,
or" ,,"
",
"
.'
t.ADnnI.S .1 .\111 SC\I'Hll .IlS
f 56.01141
is any u ninlo:t1tkd use. Th" nil"" for I:uldcr C:'Ire and me a ro: !il:t fonl. ill th" "~S l . tan da rd,"
------ -
---
-----
---
- -
CO MMENT: Mi,use. as .. le8al <Jo fini\""'. I! ~ny unlD.eseeable use. Unim'mdCd u\.!'! ;" 1". IC/O na. row a dchniticn lor misu$O. f or elIampre. a :;crc\W'Ciri...... m ~nufactu~r (an hooesllr state I~a l tn~ i nten ~ ed use 01 a strowd river is 10 pl~ce scr cw~ inlO wood or rT'K!lal pnd this interld~d uSe only includes D twisting
[ ,
rM.~n""'t to ttMl ~,cwd riyer lII!ah . Thus. Ine manu facture' could dMign thC m"lal in the $hall to ...i th$land t",jsti", or torque b~ not OOnding. 1/ lhe screwdriver ;$ then used to open ~ p~lnt c~n , and tr.e sh alt s pli nters injuring Ihe lIscr. the man· ulaetu'er, Ilnd e. 1ft\> unintended usc d afinltlon. could a ll ege ml)Usc . Howevar. INe . yo oo knD\"~ lllat oponing paint CJn5 wilh a screwd ,;V/lr Is lore"'l(lJbIC. Ihu~, under Ihe IO'I!S~3b1o dclini.icn. Ihc, ,, woo,.1d be no misusc.
If:. ~nf"ty k,tu tc i ~ di"'nf'.'Ig~d ..... lien it sli(\" ld be cnga~~d, ~ud th e ~,r~l~' re:o!ur~ would h:ovc p",.cn tcd the lIcc idcnt . th e m., ,, ubc· IP ret l~ g.ener:III~· nOi reo;pon. ibk!· Simi"'rl)', if Ihe ladder {cll hr.... call."': Ih e pI ~int iO' p~"\C"~"d Ihe lad
" S""/'l/w ~
"-d~ tl(l\
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,,'ptOI pllm><.l -'~l' J~jlllll ~Jn I! uJ ~,l~]lP~ 1 ~IJI Ul llJJ ~l'l~~ I~P P UJO ~3\1 .'J".J I\! ut! J"'II"'1'\\ \l\l!l '!UIJ~ I "l' tI! "l!~"d,,~ ]1'111"1' ]!uttlKl-ooS Jl]l 01 J ~J~J ll!'" ~]Jno~ J'II '~I'Il1H)d QOi: Ie P~Ir.J ~l J~PP" I ~ J! '~m!.1 ....'I!~CUU~ 1 "'~1 ~t!l 01 J~pj '';~'I.l '!I.~'i()Jq ~."al 1Il\l PI"tll IS J~PP~I "'II j",]1~ II ." Sll!"!Ull~1 -~l) II! ;; IP~"tlI'-1I""e. "41 lt~ 11001 10" op SUIlOO 'stltll 'J~PP~I "'I' ...... III<" <1'"",,,1 OOl , J ,\O ""0 011 1"4 ' P'>l(~.:l '~Il~nlJ" lIu ~ -~ ....,nod m II ~11lJ ':>! lqnd "'I I " ' I "''' )oJ .r:>ppq ~ 11"" 0 1 "Iqm.os~u" '
om:
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oot JQ1I!8!J,\\ c 1'1011 ()I p,'leJ
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SIll )OJ .... IJ~"![ IOU S! :lll ('li e IU:>p!(l..)C J I{I J O X lUU " jijW I"OJIl " lOll S! M ...,SIIs':") s/4 ' I"'(!"J '<"I'P~1 :'11]1 I)"~I~"! Inq ':Y.I"~l o;q ~!II :'1001 1011 PII' pu~ IJI1pII1 J Il ' JO d~I' ,10 1 J Il L 110 j U!.... , ~)S SIl,, , lI!IUI,,[d :'>\jI JI - "~'I' ,!:o., u ~II I SII!SlII:.HIl ""'Lnq!11I1OO I) J! ,\1'10 .\J~M~= ' !'I ""~ "I~lJ :lJu.T.i!1 ,mll lnq '1,,~jj!l~"'lI i ! :XI'~JI'J dOl J\ll UO:;11!J1 1111)S ,
',"01"1\ pa"(l!"'~1II ~J~
,'J~,'J .~ WillIS!,\ _~P
1)
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"
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uOlUUIOJ ~lU OS ' ~~tJ J~P Pl1l
~~ Il~!IU pa:t~H'1 : rel="nofollow">Uk"" jill\] ·~' n s ! m JO ~';lIaJ
JOJ Sp UnOJ;; , nUJ,tunu
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~
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I,Allm:RS ANI)
SCA~l'OI.l JS
The bo.'5l ilVidCfl~c 10 <)"eN:om~ [his argunH,~1t is t~'SIi tllO!1~' of an cyewiln cu [hnl plaintiff did not ln~e his b" l ~!!ce," Such IC~limoJly ~m! c"cn o"crcomc the fJ<:t Illal I he pllinl ilT \\'~~ disr~saf(Jilig :I spe-
cific hal~n« "",rning. such ~ ~ wan.,,,C agllinsl manding on Ihc top SlCp Of' top rnp." The mere f:let tllnt Ih~ dcfcJKl anl-n"~nuraC1U r(r prim.ro ~ warning 11031 the ladde r ICll ,,'ould bend inwa rd if Ihe user CIIus.,-d Ihe Io.w 10 be 011' bJ lancc doa; nO( nb.olvc lhe dcfrll dant. TIl e questiO!I il whether Illc ladder should hnvc btnt undcr Ih e c ircum~t :II\C!O'l proven 10 cx ist 3\ thc lime of the fall. TII~ (;ICI lI"~llhe dcfclld~!1I w~rncd 1I.al 3n ofl'..o:.Lance Io.,d could bend the let don not mc..n Iklt the plainlitr~ conduct ~au~d Ihe leg. HI bend, It dOl:. not IlI ("J Il the p!~in [Iff wa s oIT bnhmcc," If a no rm,,1 elf·b.llancc lo.'l
'rr.
(dJ-Al terotIDfU, If the ladder was allered, Ihe nlt ~rnt i on could have afl'c et.:d the jX:rrormance or Ihe dc~i g n , causing Ihe ladder t(l ma lfun ction. For cxmL1pl~, in 3 t':I!.e in whic h Ihe p)'linllfT n~il,-d of wood 00 Ihe 1.' 3r :md flOnl Ie&" o f 3 ",<JOI.kJt ladder, (Ii<;
'I"pII
"II,;',. ", 1, R, CI,,,~ U
..
c:~ 2 ~~
MiIL01. 119, 11
'l,W,l~ !I~
(19$$),
/d,
.. Lilril>' ". Man. J{""bu,".t Co.. III S,W2d ~5 1M" CL API', 1971).
"Ilond npn ", Apn
\\'~"";'k ,
[a"" 101 R.I , 319, 27 j A.ltl 162 (197 1),
"rd, """~
1'1I0 /). wlln. PII ,\CTICf. GllIot:
, 56.0J
rcru.ro
COllrt
10
ch~ r£c 1 1~,t
Ihe jury could i"(er Ihe cn:o:uron or 3
dcr~ct. "
§ 56,03
l.addtr Stundards
11,. '\m "i..n S;t1nlW Sl:Irutsn:!. I",,'il". (,\ .- .sll. ,"" ~I"",", nf• •" " .. <1;"" II •..tollen 1::>11'1',\ 1. (;"",,",",11.,. I..>."" .. t<>ric:< tIIL),.1III
,b. O",,",. U...) Sartly 00Id Er.. lth Ad .. IoIo I,.,1I1or! (OStiAl ..,... as
.......:t ,\>ou ,">lh . opp1.· I" I. ~ •. I.odd
,,""d.. ~. "III ...,., Uy ol.......,r_ 10 VI . •1O......ct... n • • ~lnld . 0511.\ , _lOll... It. ,.m '" tort:< ~:'" r" ... ,Ito ,\:-iSI 'I""d,..~ ••
(tl-AIlICI"icnn NII,lo,",! St.Rdords )nsllt_te {A:";"SI).
Thi.~ ~Cl i(lt!
will :maly?c Ihe ANSI sl"'ld~rd.! ill w,,1~i l. It i, ull lik~ly I b~t a h dder
'1\;11 cuu\ply wilh Ihe npplil;":lblc Af';"SJ ~t undnn! an d 1\01 "'i,h Ihe Ul ~ 'nl1dMd.
The Amcric"'l Nntion.,1 St:lndJtd~ Institute (ANSI)' fl3ss.:d IMir original Arncrio~n Nnliom,1 SI:lndurd SnfelY Cooe for COIISIrOe licll. Cnr(, and Usc or b ddcr:« in 1923. ANSI ', Conllnill"" on S~rdy In th e Cou stru ctiml. Care, nud Y.<e of l 3ddcrs, t he A I4 Comll1il1~'<:, pt"(pan-u th~ initi.,t ~1~l1dard jll 192] , ~!UI il ~ rcvi.k:m~, up lIlIti! 1948. lk'<;lIosc or the ,'3, 1ollll 1)'1""" of b dtkrs lh;u b«nme :\\"si!nbk, Ii"e Su !)comnliU ~C!i were ultimately Cr(nlc"
~Il c nlt:)· m u~lli rsl
"&;0\"," •. '><, .... R_ck" Co .. '40 COl, Apr, ld
79~. ~ ('~l. II p'r. t~J
(t9 66 ~
• An"""'" S ot;n".1S
trotA.
,\n,,,;".,,, " ..ioo.>l Sl J!>
It«t";~
""'".. ,\::>ISt ,\l U·I~!l: J\,>I
m,,,,,.... r--SJ ","""<~ "
M"..' -S,j
"!~. l· 19U
N:uiomol SIOIld. ", fOf bdtk<"l-J'i « ol_,'" r",\, 1\<'I "i """,", •. ANSI
,\J~,j·!9t14:
" ""rico"
",,,lion.1 S,>!,",,,, 5,r,I)' R",ui".,,,.,,,, fbr I ob- M;>
"H.-'· I~J'; ,\""r "'~"
1\"1;01\:11 Sl a!>
1I."", ~irem
.... ""
UDllEIlS ANn Sl'.IFFOI.I1S
10 hi~ ~"'dcr. Tht v<;Diu" orlh~ Siandard "·hie" ....lIS in dT«t al the t;me I.... ~WdU<:L "1I~ [...,111 I,y I "~ m~nuf;'clu rer i~ I 'll! ot"f ~I;utda fd i~ (ldmissibl~ .l
which Th ~
,,~KI
(11l.. lyr.i. belo ..... ~oncc rn. tke mo. ! COmmOn IJddc"f"S, port~ble :Ind md:il llImI~n... I-Iowcver. Ihe same IfPCS or t~. (,re ;'I1~li ·
cilbk 1U pof1~b)c
r'~ 'l fmcc-..l I1I~~lic
ladtk rs. ... ilh SOJl1oC
v~ rin liotl'i
in
dct ailllmi inlcrpr~ln li
Fron, rt:tUing II,is th~l'wr. The ~ lIorney shOl"d be 3ble 10 ~ whi~h typ;.: of Il'l>l would have di
Fi' M. coull!ocl n'UM ideo tify tbe type or laddn . (I) W~S il made "" IIIC job'! If so. the job'lnmlc '~d,\cr ~13nl\:Lrd 5honW be COll5nltro. (2) If it \\"a~ not ni nde on lite job, j, il por lable? If mH. Ihe fixedladder ,.a ndnrd appJ("" (3) If it is port~ble. i~ it made of ..... 00..1, mel:l l, Or pl",,1i<:? Onl)' Ihl: "1'l'1ic:lbl<: Sianda rd sloo..old bC' nm~id"n:d. [21 -acc "p~ti/)MI SafelY a"d Heal lh Adl!1lnislralion (OS HA), Th e OS IIA Rcsulati,',,~ for Llllden a nd Sc.1lrold,· are lakell ln rgcly from t h ~ AI'S 1 >l.a"ll:i rd~. The a SH A Regil lalion~ ~p<.""ificall)· incorporate by rcl"I:rellec Ihe ANS I , taud:< rd. ~nd .....,IIire ~II e lllploy"rs 10 , uppty t~dd."" ~nd Sl:arrold~ 10 too, CM1l'tO),'''''S whieh C
. ..
os r tA ,eglll.li <J< '.~ l~hni"~n)' Ut'l1l), 10 the employer, nOI Ih e manThe; ' <1'r,""",,1 Ihe CU~lom m,d I1l":lcticc in lloe ind""t.}", and ~ ,c nd no;,"-;hk=. lot k;l~1 o n ~ II cgtjg(nc~ \·;.us.: oJ f a Clion. for t lla! uf~c ... r~r.
'&". ,'.11'•. l -''''' ,'. CDI ...~,. 01 S.\".!,I ,61. 41.1 SS.S.1d .l7~. ~61 ..... It. l
,,,,. "''''''h •
l~
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tI,,,
1 9~6.-I~~ ~11191l"7).
Su ~<"."",lIf· 11.. II "f"" &. It. I k~"". 11"",1" 1• • 7).
()" "polk."t S"("r "00 1I,,,llh Ml (M",·
lhc~'
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, ~ 19:5 4lO(~)(.\11 1'm;1 fF<'rt.o bk 13
,
PROIl. ].JAil. PR,ICTICE GU[[)f:
rcason." Tiley al.o ,hould be u'«'d by lbcuperl", one nflhe ground~ for hi~ opillioll.
[3}-UllIicrll"rilcrs Laborntories (UU. Tile rul.:., and t<:81, in Ihe l]L 'tandard, alld III~ rlIic'; in the OSHA regulations, are ,imiJar to tho~e in Ihe ANSI ,Iailliard,. [oI}-r.linimum Rcquircmcnt~ f"r Safely. The ANSI siamiards e~ pr""ly CSlnhlil;h only millimum TC"{I"ircmenl'; for ';lfet~·. Till", com· plial1ce d"", l10t mean thaI a ladder i, nlll def(."Clive. The ,tandard b not detcnnin~]i\·. ofth"l i"ue, ~ince pwduct, liabililY aClion~ arc of]en "onccrrled ",illl more Ihan millimulll safuly.
§ 56.04
Portable \\'O(Id L:idders
.\t';S] AI4.l-19X2 I, 11", Am"i,"" ""1"'001 SI."dord, [,,<111.10 (,\t';S]) 'Ia"~"rd fur po:>rlolJ'" ~,">< ,,,.d fo, ~"rt;,"la, I"dd" po'" I. 101 fo,lh in th< >I.od,,,d ".d i, 'I"-·,mc .... II",II,·~. 'n" 1)'pC or ~""I,..,... 0",1 ("-",",,, ;, .1,,, 'I"-'clr..,d ~'llh ,.1". lor "ppll.. llon.-.r !hc 100'1<"'ro, I·:..,h l>
,·",Ic..,
u,
,or
m."
1..0<1,,,,,, P""" "D",i~n vo,m,,,liI.. '[c·,I," '" rn;t~, ""e Ihe)' ",m' ply ~llh III< rtq.l"m,"" III th, "n.olArd. In ""lIo1potlnn nl <",,,. on .. )•• ,I,,". "tt(),oe)". f(), b,-,(I, .10," ,),,",101 ,'n,"" Ihollhol' O."orlS' ""t ""'lh<~l, ood ~,,'''k'
""
",t>;,
[lJ-Baekgro~Md. The ~lalld;ml fur p-or[;lb1c wood );(ddcr~, li~e Iho other,;. wm; dcri"cd from Ih~ original Amer;o;lll :>ialiolH') St~1\ dard Saf~lj" C()(]~ fur COllstnlctioll, Care, and U,c of I.:lddcn;, A \4,
",,
•."" R_ Ifng'" &.1<_ 11,>\,.,,,. O,oul""i",,,1 S,fd), lk\lth ,\01. ch, 12. "Tho U" ,,[OSIIA ill I'ri,,,,, l.iti(;,,,io,,;· i 1;:,OI(2) (~1a"I"w II.:"d" 1"~2) ~','"
Q_
g<',,<'wlly 1, [),,"', f;,ld"IJIi"'J' 1/", <1 OSIlA
/I.<·.~,d","m ..,
171!- T";ll I.",,",
(19~l)_
,,"''''',
LADDERS AJ\:D SCAFFOI.J)S
tiNt appro"ed in 1923. It wa< re,'i~d in 1935 and 1948. [n 1948, a '.pamte American Natiollal Stalldard C(}(lc cO"oring wood laddeN. A [4. [, Wil, created. It wa~ revised asain in 1952. to cover ju
(ur Stundord. Th~ official r,dionalc for a
Whcn it i, impractical to m
'AKSI A14, 1·19!1 ~ 1,.1. lld,~L\
"""''''
ed.' Tll ~ I)'PC or h:\ rdwar~' ~m1
for applic:ttinn of the
ra'leIl C~' l~
aIM) ' JX'C lfJt"1l, wit h rI' ).:s
ra~tclI~r.;.
A comr>
~ 1:lJ1 dnrd ntUSt meet st itrn~~ . du ' abili l),.
pIlrfo rman ce.
UIUJ
wtathL..-ins dl ar:tctcri.,iL".'
{S}-l·t·~ (If J.nddCf'!i ~ n d n cir ))f", c,, ~oo ....
"ad,
l :uld~r i~
I"lIll1l, from 'f ypc; fA (cs'r:t·!Jc:I'<}"·d uty industrial b dder ...1111 .\00. po.",d dUly tilting) 10 Type III fli.{l.h l·d ul)· ....mso:hold b dder ... ill! II 2QO'fI"Iu,d d UlY Tali nG fo r lisht hou!Io:h••ld u,,<,).' A fom , ul~ del~nnilll"s the "e<:e'~'I)' !.lirnen "'; "n s of p:m i.;" b r spe, ck", of ladde r ma te ri al,.' Th e pu rpc>!iC of th e formula is ttl c~ su rc n , ui lnbic IODd 'e:\rry ilig C
="'ot
(6J
PorillMe St.."l:o.dtlm..
(R}-(;ctHlrnl Rcqulrcmenl5. T he s)op(; of ~ t~p I",J!.lcr.; i5 lin 'il ' ed." Sp~c ~~ 1!<:lwc..,n thc ~tc~ i, limite!.l." The ,t~p~ hal' c 1l,) he lel'cI," The ~id.:: r~iI ! mll't be al le:\.';1 IL~etl ~i " width ap~r, nt the top or th e I ~ ddcr" and 111\"1 'pr~"d UII! III ~ ' erlain C.Xlc!\! rrOn\ 10p t('l bruto m.'· · /d.~U,
' JJ..tH. ' /J· tH. ' /J. f ,.S. ' !rl. t 6. 1. 1. ' 1d. 1 b.l.l .
'"rd. f ~.I.~. l, " U. ~ tt. l . "(J. j tt.l .U. " IJ. § 6.~ . l.!, " f, t
" IoI. t 6.1. ' .J. " h1.
".".,,"
l.,\om:R.'i AI'iO 5011(-"01 .0 5 The Sle~ m u." be ;'''~"hcd in a "erI~ ill man ll"r." Slelll~lkIclS h;we ~ lOp ("ap. ,,·hich allo,,"S fl"l.'C s"·j,,sin&o f tl.e back So."(lioll ,,·jlhoUI cu,,:s,
T he spn:adcr ",Ur.! bo: of ~\lmcien l ~i1c and ~lrenSlh.'·
[h}-l. duslr;'l ] Stt p1;odw" . T he dim c n , io n~ of Ihe l'.1rt~ u,;cd in Type IA al\d T)·pc I ~t ~pl:!ddcr~ are pn" cribt:d." The ~ I CpS" :1111.1 bracins" are ~ peclflcd. [t)-Co nlln~ rdDI St~pl mkh.·rs.
Th e dimcm.io!ls or the rllt1S," th~ ~IC)l>." and br ~ cing" arc nil prcscrib.-d. I d}-Ho,~.old Slepbddcrs . Tho:: dinl<:w;io"s of 1he P.1Ilf.," Ih. st<:ps,'" ~ nd tI.., brncin," ~rc pr~'SCnbcd for hOll~h,,1d Mepb dd("f"S. 35
wcll
17}-1'or13bk Rllnl: Uiddcrs. TIICf': a ' e fOil' Iy","-s (If portable , un£ b ddcn: ( I) r.insJe lOOd" r: (2) ,,,·,... ,,,,,,,illn c., lension b ddcr: (3) "t"<;t irlll,,1 ladlk r; ;lIlt! (4) 1,,"!.lle and cxtcII~iOJl IT"",, )..; l~ddc ,. Each has it ~ o,,·n ~p.:dn ] r~'(lllirelHclih.
[nJ- Gcncl"Ill Rcqu lrements. Tho ladder. m n~· ha\'~ '·Mi(luS Iypes (lr b,,;e~.'· UUlllls mil S! Ix: lc,'d and properly ~ruco:d." Th~
"1tI. !
6.:. 1.~ .
'" fI!. ~ 6.;:.1 .).
Itfd. >0
Id.
~
0.2.1.6-
" Id. j 6.1.~. J.
,. J:I. f 6.1.2.1.
"/J. n 6.1.1.l.. 6.l.M . ,. M. j 6.1.!.1. "101.
~ ~ . 1. .1 . :.
"/d. II 6.~ .l ..I· 6.l.H. "iii. i 0.2.4.1. '"I
"1<1.
b.l. I.\.
~ ~. l.U.
"'100. I.IAn. PRAcn CIl (lUIOIl rung. "'U ~I be
or allti ; li p
devic~~
require thoi.
nrc optiona l equi[lnJ~nt." The ~la lld~rd
ills!~ Uatioo.
[hl-5in~k Lmlder. TIIerc Me fou r lyfl"S 0( iinglc bddcrs, ""'itll maximUIll 1cngth ~ for each t)"[le." Side- wil dimension s nrc ~[lCci lied." 'Ind t lte ...i d th bet ...·«n t he :;ide l'3iis al tlte b.l><:" i, specifh:d.
[eJ-Twn-SeCllolI f;x tc:Mion L:'Idd.::r. n,eN Me fnur t)'flC'I and
$il(!l; 0( t\\'o-~ect ion cxtcI15ion laddcrr.. " There ;ore maximum sizL-;, for instan~c. 60 feet for Tyfl" I ;md IA • .w r~~t for n'[le II. and 2t f""l for Type 111. " Minimum sidc·r:ti l dimc!l~ions nrc _t1.'o S",~lkr ' klc railti :lTC ncccpi"blc. if the r~il . llr~ rcinforc~d pro!",tl)' and arc cqui,-:t k nt in ... rentth. " There is" ntin im um diM"'OCe bcl\\'~'Cn lite ~idc rnit~ of the "Qucm s«ttCIl." There must he u minimu m overl~p bclwec-n the twO '~Cli(ln~, de. pend;ng on tbt IJlfl'I of CAI~$jon b d
" hl.f /d .U.
"!d.
I ~..I.:!.l.
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" 14.
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., M.
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.
" /d. t 4.l.1.!.
" U "ill.
J /0,3.3.4.
.'I
minimum
d~t:lllce
bet""....... " tbe pui" tS of bi:.'If.
LADlH:lIS ANI) SCAFFOI.I)S
I 56.Ml7J
ins.· · 3nd there muSt Ix: 3t 1,",,5t tl>'O p.~in of gu ide iron~ where the 10!, and boUOIn sn:lion~ meet" L.ock~ all d ~uide irolls tn ust bot: nleta1 and mo ng C!lOll g!! to dC"eiGp th e rnn ~trcJlllt h of th.: 5idc mil , ." The gul d ~ iro n ~ mU.l prc" em fh e uppe r M.'l:lion of thc ~Iddcr fro n1 1ippinG or (;liling ou l whi k: Iht lad der i~ mist."d. JO\>'~rnl, or in IIS\"."
A rope and ,,1,]1<.,)' ona)' be u>Cd ","it h the c.~te il lio n l:uhkr, lJUt lh. diam c1cr of the pulley ,," d t ll~ rope. ~"d th e minimum brcl king st r~1I1l1h or the ropc:, must meet lht stan dard 's ' rccifK:"ll oni.·· Id}-S«lionaJ L'Kklcr. The slaudanJ .
m ~lInc r."
le}- Trc.~I !c lid I::xt~ uinll Trtl.'ltk Luddl:1", Type. I . Th.".. is 11 "'MinIUm k:tl&t h and ';~.e." mi"i nluon di m~,~'~"'s ofth" ~idc rai l:;.," mi nimum sl'rcud of th . l'e,! I~ al Ih" bon oill." and millinlUm wi dth between ,id~ rail ~. " The eX! Cll si(1tl seclion mll!l D"eria" Ihe b:\,c sc~ · li on b~' n prcsc ribl:d Itumtu" , Or r~C1."
The mclal hing" joinl :It t he 10" or lh" side r:liJ~ mUM " ,e\'(111 Tlw met al s p =d~r or locking d ~ ,'i cc m U~1 be of slImci em ~i7.e and 51n:nllw to ,;.ccol el~· IlOld Ih e rrOn! and back ~CCtiollS 'f'r~~,j ill g. ··
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GUIIlI:
th~
~ Ign
open po1i!Km."lh e C.\ICl1~on l00;:king d,-",i n: mm! ~ of a dc· nlu] ~lrCr\glh which Il cvclops lh ~ rull mC\\Sl h Grlhe ~idc rails."
Ru nS" "'''lnOI be mor~ II~~n 18 inch<:s .1parl . nor 1= llt.,n 8 inches ~p~rt. 011 tll~ e~tclisia ll ke lian, HUI S.' ~h3n Ix: s/U=I:II knt 6 ineb· ~b apMl and 110\ mOrC [lmn 12 inch~'S apftrt. " E..lclIsion l rat!c In
[~}-Plntfor .. l .Jlddc r. A pl atform InddcT i ~ like a portnble lld· c.\ccpt it h~, a worklns plnlform ncnr Ihe lOp. Requir~ mcnt ~ for eOll!otruction arc ~im il ~r to [h~ fCW" slcpladdcn. 'I'het"~ ar~ s!'<-'Cif· ie '\'qllir~menl ~ for Ihe slope of lite hick = I;,;,n.... Ihe minimnm wldl lt bclWl'Cl\ ~idc r;,i l~ at the platform ." and the method by which Ih. b:tck lcS~ nnd ,i<Jc rnil, arc conncelcd."
d ~r.
TIle platform mUSI be 11l:'ldc so llt"-I it " 'ill not f:til ordcfotm under a loud of 1200 Ibs. fo r t )·pe IA: 1000 1b5 .. type I: a nd 900 Ib~ .. I)-'pc
JJ .fl Ib}-I'lIlnICr'S S lt'fIhlddcr. l'!lime",' Mcp];I
nO! "" lonlle r titan 12 feci. mea,u rcd frem Ihe fronc rniln l01l8 10 the top of the tOP SICp." They llil"c 10 lII eet cllc Tcquj r.mcJ1l~ fo r slcplnd· tkrs. CXCCflI : (~)
The top ..~ p can iii: climin:'I(d:
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(b) A m Il<:
spre;ld~r
may
l~ \I~l'
instcalf o f n
m~l:d ~l'rcml~r.··
[~}-M:lwn's
r.... ddn. A n1~son's bdd~r Is" 'pccial 1)"pc of single \;oUd~ , for lise in hn'·y c'>Jl~ruclion WOII.:. It COI"'lol bt: lon:;.:r than .w r~~t.'o Ther.: i~ n milli mtlln ~i ze for slde mil.,," minimUIll width between the sllf~ mi ls!' 11m! specifk:lliom for Ih e runs phl c~· lIIenl."
n
(9)-5ltp S ioois.. Sll1' , tooh (; ... 001 be longer I h~n ilKhcs." sltlfN nmy nOI be k." Ih ~n 4 inch<::'i in the fr011l nml 2Y, inc!!~"l in Ihe b;l~k ~cctio"." T here mll~l b. at Iea.t lOY, illche~ bt:t wccn side rail , nt th ~ lOp >lep. TIle sprc:ld must incrlM~ IX il1che!< per fOOl . frum wI' 10 boUo m." Ther.: mll, l be 1\ ~urrlCienl l}' Mrtlnll meta l jflf"e:Jdcr ur IllCkins dc,·ke 10 Ioc;k the front IIml bae): pos ition s in open ro,;ilioll." The lOp c"l' 1)HI ~ 1 be at IC:l:ll II fOOl wi de. SX in ches de"", arId X·ille!! th ic~. Thl~ r
\'~rifi(":II;OfIl"tsI&. I....:!d dcn n,u~1 p3 ~' IC:SI~ to rna!.:e Ct"II,r"ml to the rcqu iremelll, of tb~ st:llldnrd . Tile prderrvd "D.... ign Verificati
[IO}-I>ctJ1l11
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i.. "
)l311dard." l\'atur3l!y, whcn rlf: rr",,"illll a \<::'i t or i1l1c'prdin!,: rC5 ulls, . erc.· <"lIce mUM l~ made 10 Ihe ~lanlbTd ilsclf. 1101 10 the O\ll iinc o f Ihe !ila" d;"d pm..·idc"d in Ihis clmple •. Th" <)II!Ji!\<; io t his ch~)ltef" is il' • .. Id. j
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c '·crvi c,,· of
:1Ic:l~ .. f iuqui r)' and IUO"id" a n an d procedurc!i of th e te,t s.
11110' fIOtem ia l
l li~ p\l rposc~
[a}-Yl'.\ti _1t ElTon;. 'fhc ~I~ nd~td st~lC!1 I b~1 " (sJubtle ,':Ina· liom in t('l;[ [c-c litl iqu"ll may inml<Juc~ ~ i~nilien m ["'Iinl.! ~rrol1l tlt~[ bi1llthc le~ling p rogram." It sla tes th~l th e PC!!;"'" cOIloiLlctjlll,! lhe tc;lins sllou'" h,: c:ncr,,1 to fuU\lw ~II
111;, Jl,u" jd"" a r... liI~ arel of c rQ\j,·eM minal;on in a ny IlMkIt r a.s<:. !lot h coun,",~ ' ! e~pert and the "1'[lI)llent'., ~~r"'rt 11':1)' Ix: <juc~ li oncd (0 determi ne wt.<:thcr 1hey kilo,., tIl e dcta;]~ of l he t~'S.t in ;; j t:Oll' wrds. Ifl hey tJo not Imo"- Ihc ddails (Ill the witnei10 sl~nd. Ih c jury may cOllcl ud c t)tnt
Ih~y
didn'l r" uow the del ail . in til e field ,
Tbu~ .he la...')'~ r shOl.]d do ' '''0 . hingl- Fir~l. he nm~t ma"" .~ur" Ihat hi ~ c~l"'rt'~ I"'H int, metltoo . :lnd kn " ,,'1cdgc arc lJoCy,lIld ntt ~ .·k . He shou ld obs..r.'c Ihe lCj lins to mnke ~"r~ Iii~ ~.'p
s/',OIIO, fhe I ~wj'cr ~ho\lld h:l"~ Ihe tle l~il, ~ f Ill" lI:!!t, li st,..I for r ....ddy r~rere"cc d uring «"""",~anl;nati\lll <Jf hh oPflOn~IIl's I:Al)<.' ft.
He sho uld COIlduc t a Ir;\'i:1 tc~t with the '''ppOuonl's c~pcrt. rr the cXj'lCrt nl3hs a nli,tah, elle l:t",)'cr !.iIO!!]tI refer H' § 1. 1.-1 (.,':ld lh.:ol "diliGL'llt c rr
,,"t1
[b}-Ch""s tn~ tll ~ ]~1 1Itlcr to T~s l. It is u.I' in ~II c'ln'va k nl "'''',"<'I'.
" /d.
~
7.1.4.
tAIlIJt!AS A:'
IC\IS !oha ll be ~.... rtt.h"u:d o n lad~~'f'1i lhal h ~v<: h,."'" ill " '" Qr s ubjt.-.ct I" prior d:ml :lg~, lII i~u 'c, or abu~~. "" T h"rcrur~, if n d~",i gn defeci b ~lail""d. Ihe ICIIIS fohoulll Ix JlIIrfonn~-d on ~ I-;lm pk lalkler 1h., 1 h,"l.!i not been u!iC<.l pr~\·iou ! ly . The Ic~t~ Call :"~o be cond ucted on die b ddoer wllieh failnl. U\l'\),!vc:t, Ib" rden llli IClOt r,""uh s (or Ihe pUrpoloCI! ofd elerm ining com plim'cc \\'ilh Ihe w llld ard ~rc Ille lei l rc~ull ~ on Ih~ So.1 ml'k IInus.d Julk!.".. In n dc"SiS lIllcfccl cme, Ih e m:lll ufacmrcr will brillS in experl. who will le>"lify 11m' lru:y t.,",,( O lilt m odel b ddcr In qUCSlion " " d Iha l r"l'r~"";"I~li"~ .ampll'5 .1 11 compli ,'
If liu: m:lllllf:lc!nrcr tCSl w an III1U!>tti !o.,mpk nud the plaintiff t~~I used L,d dcr, it C~ II be nrgu .d Ihat Ihe plai ntiffs tt,t rdul ls a rt: a r81~lbl>' jrrde"nnt ror Ih e I'urpo<e of d~ltnnini n::; coml,]j;mre "illl 111,-, It ~nd~rd. filll':C Ihe "I~ndard ~flCCifi c'l!JJ)' ~)'p1ic"S to IInll sed ladder'!, ro
1\
Th . desi!; 11 \'~ri!ie~lion If;.
Th '~~, if Ih.: s:u 11 ple b ddcr p3-<.S<:S!i«: 1l,."iS" "criflealioll (."Sts, I!'" I:tddcr !hal f:1;lcd as well :IS " s:,"ll'le lad der ,,~cd ill :m \.'(Iui"llklli
· ' /d.,1.U, at TIl ..... 1<" 'OS<J II .. '"' "'.-II, . d ... net h<>ol of 1<'I"'J ~,~l , too MI. ",;I y and q...:tif",,,. ,..,... of ,toe ''''' - """'~I he "".. in«! d",i~~ dio
t $I;»l{IOI
1'1101). 1.10\11, I'R,\CTICE GUIIH:
mUllllcr") '" Id limie r ~'qUiV;llcII I ci ro;:u nl r.l atl CC' ~ h ould be l':-; lro . Th e I~St rC'\lh~ ~all ll"," he ~omp:lred . If lile re~ul l ~ for th e ladder that r'li kd :Ire lI'Orse lh'1II Ihe resuh~ for the >amlJoi e kidder lI'i lll equiw· knt U!iI:, the e,' pen c;on upLlin why thil> sItov.1I thc ladder th:ll f:lik.cd Ind· ll.r. lhe expert awl' 1 ~ljfy thai :lJrhough tile: Inddcr was us.:d, th e 1.'lI1 results :IT\: idenl;.
Ir nn n~Hlu f~ eturing or (JcsiS " d~f~Cl C~" be: fu uml by tc-sting o r c:u mill.1lioo., I"~ np..'l'1 m~y be I!.Ul1l i,,.,u 31IriU ' lvn ...... noi"S lhe cir· C Ulllstanc~':I ur the acc i tl~ "1 as ,.'"!;,ilicd 10 by I' I\! "b intiff ~ ' Id other witnesses. "~sU1l1i"S Ih ~"li~ circum S lnnc~ til be true for Ille sake uf hypoth<.... is, the expert mOly then e.~ p rcss his opinion that ,lie ladder I" US! 103'"e corll:oilled n m;ou uf3CIu riIlS d efect Of il .... ou ld no t ha\"e r~ ired
under lh~ ci rClI1 "starl<.~,··
[c}-Gt ~rnl Prltldl'lc~
nriflcaliCH'
I I:Sj~
of Tes tln~, Th e rc~ults uf tlte de~igTl are l(1 ix: !lI ken fh .: min uies "fto,.. to.1d r~rnO\·~t"
Th~ I.~ loo<.l mUM be IlfJtllkd ~Iow'y, ,,,,aid I" !: ' III}· ion p3CI '""ding during the l~St."
Thus, ir I h~ pbinlif!' cn uscd ;nopJ c.t loodi ng of Ih. ladd er in somc IIla,mCT. ' ''ch :lS by jum p;"!; o n ii, or /flo"illg 0 11 il in ~,, ~. " ';1)' but slowly, h~ .... oukl h:m, 110...." "beinit a d iffe rent IYpe of I<):I(J 011 l h~ !:odder lhall it was tC'Sl ed for. Thi s; lila)' m~k e n dijrcrw~~ ill wme "
1b< ~n
b older.
p,.e " ."
..';)Uld luu ,,,,.,I«II!>e lodder fu< """'pori1<.'o1. /1;"",;"'011 lb. , 'M «lui ••1ent .. ill ""
•• 5 .... rr1r'" I )(0.011111"11'1 . "'\NSt,\t4 , l'19~ 2~ 7. 1,' . hfd.§ 1.U.
""'"''''
,...,
LAI)j)~: RS
"",n SCAFfO l.llS
Mluatioru<, but in "'0'11;1 would b: i r'clC\l~ ro •. Th~ (I\ll'Slion i~ whet ber the lu!.klc r'~ <.i ..-siS Il w~s :l d!.'1 Sur Sincl~ lind 1t'<.Iens;"" l .ndd~ E.1ch 1)'pe or l;,lld!.~';~ ! ~t ed 10 hold;o "'orkin& load 0(:1 cerlll;" lIuml",:,.. or po\lll d~. A~ :I iII\(cty ra~lor. it j~ lc~t lvmlcd to hold lou, lim." it, wnrlo ing rood.A Th" sl~ wJa rtl ~~ fo rth ,lie ml.'l hod of al)pl~ins the
lMot 10.1<.1, ;"
dCl~i1.
with lliagrams,"
(f}-Bnrd ... ,c Tcsllng ru. fox'ensi" n Lnddcrs.. Tht Icstint or lIanlw"re used 0 11 exlcn~i(ln l add~~ f!.'
of rnachil1 c to operate di e runs lock tb rnuSh certain cy~I<:"-" K01 l...'crY "oU]"("n " ...i tl I~,,'c Ihis C<\uillrnC'lIl. j;O if Ihen: i. a lI:m lwa re fl,i lu ... i,,"oll'ed in the ca,." colltlr..l i must be .I ure l h~t lh~ expert IH" Ih e
Ihe r""l~i r~mcnl~. 51n~ a~d K"l ~nsion l .IIIidl'fs, T "~ ladd.:r li floo 36 incho.-s off a CO<1"rcl~ [1oor, ~nd d roppc.-..l to the fl oo r 011 cn~h mi l." If there is no visual Jlnnallc. it 1~IS'Cr..
[fJ-Drop I I'S! for
-, ' -
i~
placed
~i
IC}-I' IIol S Up T""'. Thill I",'" i~ 10 IIC: ,ure I h:1I Ihe (oot 0( Ih" l he ladd er to sli p. which i ~ a COIl IIIlO Il "aILS/:
I" dd ~r due; not pc fmil iii' ladde r :lccklcIII ~.
A 16'[001 c~l~n~ion bdder is fll lly cXl cndcd "'i,1! ils fec'! r",lins Oil plywood wltkh hns bc(11 Sllll dc-d. A wdSl!t is allach~d 10 Ih" th ird " E'
.. A I U ·I~.i1 ~ 1.1. Tobk I S. "1,
I 7.:
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tL'd· t 7.J. 1.
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7..1.2.
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7.JJ.
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" 'd, § 7,4, ""'., U .
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~ ~ IOJ
I' ROD. I.IAo. I' RM..T ln : CUIDE
high.,.;t 0)' fungo nlld:l hori 1.on!~1 pu llins for~. i, npplied. K [ ft hcr~ i~ any "ot ic~"b1c !lIo<'enlcnt acr"s.~ tho I~t ~urfnte, Ihe ladd er fall~ the tes l. [b}-J·:"f~ndhtJ.:
L~ ddcrs . T his t ~.,t" 10 em!\<: ve rt j~ol Cl1.tel1iio n o f Ihe fl~ iII....'ion. A tO m»I"le c.~ I ~"1I..ion Indtkr is Sl.1 in a ,·crtic:l l posilion . lind ~ m,'JSlIrI:tl tlol"nwa rtl fol\'1: I~ lIf1t>Iiro VCI1kJlly 10 Ihe oollom fllII&ot llte lOp ~Iio" , o r the ro pe ~n'" pulk y if lilt l:KkIcr Ita.. J tOll" :1m' pulley ~~'slcm in ll:,l k~.
I,'orce Test for F;"lcnslon
mcas ur~~ I lt~ <.IO)"·lll"llrd ror,"~ n .~es'l.1 1)'
Th" mn~; n1\nn foree no:<;c~~ary to ~~usc "crtica l exten,;;"" of the fly 'cetio!1 of two rcet or more. .11 a rmc of one_hnlf 10 on e foo t per ~c"<:ond, ; ~ !11 c:!$\1 rcd. Th e overage nm.\;mUIl1 fo rce cannot e.\cc~d Iwo limes tit. wcij.:ltl of Ule lad d.,.·, lop k(tion. [ i}-CompressIa R "fl'!il. This Int J pJ)li,,. 10 slcpbt!der,;, T' ~'I ' form b dtlc", Il"($ilc b dden .. U lcr1.Sion Iml le ladders. m.d ~ep s loo1l'. In .IN: leol," a Io:Jd is applkd 10 tlte L1ddo:t' Hlp ClIp o r pial ' form. or . tn Ike f;:U;C o f a I r~"il l e 1atl~t;1" ~ nd tlt e base wction of ~n eAI~n si o n Il lilier, 10 both >ecIKJII' oftlw l~ddcT al th.e top cap of e~ ch. =tioll. ' 11t~ Indde T mus t wi tbst a nd th ~ load without ICSI fa ilure. [jl-lJu~k~1 S helf Test for S lcplndd~rs. The bucket shdf IInt SI s uppo rt II lo:KI of 100 pou nd s for aT 10:.1 .1 une nlinute lI'i ll1ou t f~iI. ure. "
[ kJ-':ronl S lnbilily T l'SI. TIlis I<.'S I' appliej 10 !.Icp bddm. pI~I' for m ladtkrs.. lr<.'Sill! b dtkrs. f;lIICIISio'l !Tot le laddtlli, ~ntl St\"P stools. A In:td is l Pplicd 10 the s«oIld hi SIt .,.t ~'ep or fUll!;. o r the: pbtf,,",l - Ihc high .,;t propcr !.Iamj;"; k\"d. A horizontal pulling force, fm nt ...,:.r(ls, i~ then exerted m a f>:,niculn r PlITt of lhe I;,dder, depen ding on the I ~'PC of ladder bei ng tC~I ...... The ladd er must Ml l tip fl'W front 11 IIInd lC!'s lban Se' fo rth ;11 Ihe l1a ndnrd .'
J
"/,l
1.(, ' r~hIe l ~.
• , III. § 1.1. " Id.§ 7.11. "1,tt7~. I
Iii.
f
'hI. ~
7.!{l,
7,tO,'r,hl<1 9. " .. !.I,
[I}-Sid!! StahiliEr Test. This ICf>I' :11'1'11<.'5 10 sl;:I,Iadd~n;, " bl(o rm I ~d dcrs , In:5 tl " In d d~rj . c.~lc llsion trestle I~ ddcrs. :lIId ~ICp stool ... A l03d i~ ~ I'rllo:d to,he !oOi:ond hithcsl !.Ie" Of runs. or . he pl:l. l(or1ll. A hori7.0!1I ~J pull ing for~c. ,I dc",,,rd s. is ;l pp1ic~ !(l a p:.r· Ii\:"br pari of the b~d"r. Th" ladder mll~1 ItOt Ii" o~~r (ro m a 1o.1t.I I~~ than thn t ~I fo rth ;n Ille st andard.' (I1IJ-Rcnf StltbHh.· Test. Th l) lesl' a ppJi<.'!; to "cpludd cn;,
p l ~l
form In dders, H~'!i tl e kid ders, e.~I(nsion I rc~ll e L1d
SlnbilJly 'fesl. 'nll s te' t' ;l ppli ..1< ' 0 'I cp lad dcrs, l:Wden, IId l ie b dlkn.. and t!U",,,,iOl' t resllt ladders (nol !O ~Iep ,tool.). A lon d 1.1 apll li ed 10 Ihe J:lddcr lOp Clip, pl atfo rm . or lOp , 10,1' wln,n 110 lop cap ;~ used. A hornDnlnl force, ~. rw3 rd, i, ~Illlljcd at n p~lti c1!lnr part of Iile Ind d~r. !f Ihere i~ nIL)' rcL1111'c tnIWCIIlCII( in ",,(es~ or one inch, (If lilly
{o)--Ra ckhlll T e.\!. Th l~ I"'t· :Lpplks til 5Icllladdm,. pintform bdder,;, 1tcslic bdd..:r~, :md c.\I Cll Sioll IrCSlle bddc..-s (not 10 !\lep ~loo"). to. lo.1d is ~ppl ied to Ihe bottom mjl. to. "crt icnl pli llins fon:c is ;tpp li ed, lift ing j usl [he reM fc ..1 of III .. L,dd~r lh r~t' inch •.,. o IT Ihe Ooor. to. force &allgch ll~ 10 >lt1pl)' n si.'·pOllll d lUlCra\ pulli ng for.:e :'1 Ihe bollom of one fea r ruil. T he bler:,1 disp~.ccmtllt of lhe re:lf rail i~ tnt::l 5Ured. The nt~ximum luteral di ~placcnlcnt carm,n ex c( ..'<1 Ihe vn luc ~c t fort h in the ~ ID ndnTd .' '{d,
§ 7.11.
' IJ.l ' Id, • fiI.
~
1. I I . T,b\et~.
7.12.
~ 7, 1~ .
hbt.
[~.
'Id, ~ 7,lJ. ' ''L ~ 1, 1 ~.
'Id. t ?14. T,bklo.
1'1I 01l. LI .l.lI. I'RA<:nCf: "U IHV,
[p]-Front-R ailnnd Bm:k-I..fG Dynpmlc Drop TC~I. T hi ~ IC5t " ladders. 1 f"C"l11 ~ l~dlkrfo, Cl(ll"fls.iOU Ir~~I 1c lad
{q}--Ibil TOni;o" ~!l d Spn.>adcr T.... I. Tit;,; tc.'ll" applies to ~ Iep bddeN. ~I O\tr
§ 56.05
l'url:l~lc
r>leM
L~ddcrs
,U4.:_11I!I.l "" ,bo! ., . .. """ N ..I ....! su ........ In"iI"~ I,\:-;!.' \) " .. ,d,.d for po.tab l. ",,·,.1 1>
Wo .",.tIMd,rs. 1"" . ""hl"".! ,.... ,... , ~plr '"_,.. b ....... ",I.'~ prl •• , I1}· t. b,odl'll "ml "n'n~ lb. no. m
{I}--Ihtkwoud. l·ne llacksroullli flll" till: IUCf~ l lad
~ 7. 1~.
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.....
LADIIERS Al'iJ) SCAFFOLDS
§ 56.0S[~]
Committee, The !972 edition was also developed by Suocontmillce AI4.2. The ~ta!t(Jard wa~ upgraded in 197~. in r~"po!l~e to:l Consumer Product Safety Commi"ion "ch(lilenge." a"cr 100 imown ladder e.'pem provid.d technical expertise, in O,'cr 50 mecTing" with ovcr 400 test document', o"er n period of two yc,m;. Tesl procedure; for de,is" "crific:llion, qualit}, cOnlrol, ~!ld in_ .ervice t,,~;[illg were d~,'c1oped. Design verification would tnke phlcc during the original (ksign dCI'clopmcnt of the product. Quality can· trol would be cnndncted Oil Ull ongoing lm~i~. In·sen·ice to!';I~ wOlild be collducted by the u~cr all a periodic basis. ANSI AI4.2-1981 wa~ approved March -t, 1980, to become cm.ctive June 4, 1982, Certuin modilkatio", were required, '0 the efT~'e tive date W1l> changed 10 OClober 4, 1982. [2J-SimilnrJtic~
wllh St~ndllrd for Wood L~ddcrs. The pro,';,ions for I'onable Metal Laddc~ arc the ,ame as for l'or\:lblc Wood Ladden; in many instance,. 1'hi, section will therefore not reitcrate lhe provi,ion, and t~><;l" ""I fonh for wood Iudders. °Ole Selection, Care, U~C, and Labeling pro"isions arc tile same for all lite A NS( otandard •. The only difTerence is in chnplcr number. For instance. the selection prm'isions are in chapter 8 of the wood and metal ladder st:mdards, while in chapler 9 for lh. reinforced plaslic standard. The bbeling provisions are in chapter 9 of th e stan_ dard_, for wood lnddern and mctnlladders, bill ill cllapter 10 for reinforced pi:'slic Indders. Otherwise, tile section numbers arc the same. Therefore, ciWlion 10 ,c\eclioll, care, lise, and labeling provisions will be only 10 Ihe applicable ','elion of tile st;lIIdard for wood ladders. [3}-Rationulc for Standard. The rational. for Ihe slandnrd for porlubk metal standards is on file wilh the Secrelariat of the Subcommillcc A14.2! [4}-lntcrprctulion. Interpretnlion rilles for the slandard for metal ladder. arc lho ""me as the rules for wood ladders.' 'An",;,.1" L.>dd" lfllti,u," It I E,,,, \\'",k
PROIl , tJAlI. 1·ll.H.'TICt: Gum':
[5j -Sfl'ufiudOlIs- The brief ",alerial specification>:lre.>el {ofl b in Ihe gt llcral r~'(luir.m ~III"· T!I~..,~ irl clud" rC(jllircmcnls fo r flarc,' sid. ruils,' rung ;Iud ",cp ~r~"ills,' ruu g .o lln ~~ l io n'.· Tungs.. ~I~~ nnd pl~ lf",m~' hmdw:uc,'o "nd 'lI/ITS. boll ';' o\'as. :md ,,·clo:k." Th .r~
ilre .hort Sp""irlCal i on ~ for s.lcpladder ~11.c. " . Iope, " .... Idth ~nd spr,'lld." SIC!"'. J> $ICI' ",ielt h," buckd slod l'cs." blCk seclion," feci ," nlld ' prcndcn; ." Fur sin:;t.: :lud CXlcl1)ion l~ddtfS, IlIm:: aN specificatioo. for width, " ~i7.t,» o"erla p I.:nglh," o" crbp co1l1rol." and for the c.• tell' ~iul1
l<xkinS d~\·kc."
Sp,."cifl,·;uillJlS fur tloc tope and pulk"}· ... . hQ,,:s, ·o\," S I AIU. I ?~ l ~
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ot her
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( l id C;\l'~
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U .O!Pl
,,,,d ~nd c)OSI, rl'li" :Ire '~I .
The :;.arne tyre' of spec irlCations :,re SI:I fonlo for !resile a nd t"lU ..-n$"',n Ir,:,;tlc I;o dd~'f"5," " ialrom l l:,l.kl c";.," wmbiuar iOlI Iadd<'N,II ~nd ~t." w'(l l ~."
[6 }-'\tI~k: IJ( Indinnlloo. The ~ I><:cifkd :Ingle of illclillmioll ili lh" .:,m( for mClall:"td c r~ as for ,,·,nt hid den;. 75Y, ele&rccs. Jl A lIlooifi· t alioll ill l~ulli" I't1 for rnmbin:'ltion ladder.. uset! ,n Illcir cxt~1,sioll ladd er ""!Up. '0 Ihe CXle,,1 II t:<'C'!:II)· to ""rmil Ihe Iread porlion rh . Slcl" III b<: ho riwllml or Ie,·e!.
or
[1J
T~.,.~
(,))--GtlMlll,Il',inc iplcs. ~rc
al'l,licabk 1(> both Ihe
gc m: r.1I principles of t<:Sling Iw der :mel nld:l\ b dllu ir~n ·
Th~ Io'Im c
,,·aod~...
,brd ~."
[b]-Tem S imilar {(J Those for Wonden J.nddcr~. ~fan)' of tll<.' 100000 rs in Ille ~1 :Uld:t rd fo r wooden 1:"ld(rs rlrc also u...-d in Ihe slall<Jard ror me ra l ladd~ r .." Unwe-o....,. the di",, =-.ioll r~la li"e to 1"""$ on woodtllladdc" IJoc< no t ~ l"·;o}"s ~pply 10 I..... l~ OIl metal l:ukkn... Fo r inwu"-,,,- a fail ure in a Ie,. or a lWl(I(\en ladder 01'!ct1 I. " no ,i~ual 11:t lllolgC." wh~r"a~ for mCl al l ad(l ~r$. tho b~lder mal' pa" n. lfms i!$ Ihe p..!rm"""" r ddormation d~! nOI c.,ce<.> rl"lou its, ref~r"n~. mUSI be Imide 10 Ihe ,,:nrdard it,df. II,l! to rhe o"tli"" of Ih. stnnd~rd rmwidcd in this c h apl~r.
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~
6.1.9•
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J
I')l.ot). )JAB. l'IMe l"le ): (;UII)I:: The: foUouc;"S t~'SI~ ~ r" COI11111011 10 both wooden "" d mel:>1 \;Ill· denl , lUld crosNcfcr"n..:~"S nrc pro,·id"d 10 I h~ ,,(>
(1)
Lond
(2) tlard ... ~ r.;
TCSI~I'
(3) Drop
Tc~t."
T"·;~l
TO::
(4)
(S) 1'001
T~ l.'·
Sli!, T.-st.'·
(6) Mulliscclion Ext enuing Force Tl'!ot." (7) Comprc,uion T Clot. "
(8) Uu.k cl Shelf
T~'!
(9) Frolll Sinbi lity'" '" A~SI "H.!-I9lI! ~ .s.~.
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1. ~.1
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s..~ """"
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I
§ !6.().1[lOn~J. 1.2 . ~.2 (m01"II ,
s...- "'1'''' ~
SlJ.O.I( 10110. 7.1.!!l (n.. ,~ll>
' . Id. l 7.1. 11 (mc'~l blden).
:;'·< '"PI"O
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" Id. { 7.1 {...... at ia
s.... "'P'" ~ 5(;.O-l{lolll'l· " Id.
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7.1.1 1f" 'I.1 bd~"~l.
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..
'....., ,
LADIlI!:RS A-'Il SCAFFOLDS
~
56.05[7J
(10) Side Stabi!it},." (11) Rear Stability."
(2)
Tor~ionl!J
(13) Racking
Stability."
Te~t."
(14) Front ami Rco]r Rail Drop Test." (15) Rail Torsion and Spreader Test.'"
(16) Stepladder Slip
Tc~t."
(17) L1beling Tests."
[e}-Tests Unique to Metal I,adders.
TC'Jt~
for met:d ladder:; Ihat are in addition to Ihose for wooden ludders relnle primarily to bending and ~trenSlh. [d}-In-Service Tests. Tlte metal ladder slMIdard il11rodllc~"!. sp..'Cific "in-service" t",I~, which arc not spccificxl :lS ~nch in the wooden ladder staminrd.ln-sen·ice teslS arc desisned to cvahmtc the condition of the prodnct following actnal field ,"n'icc. The}' arc to be condnct(."{[ illltle field by the rnarillfaclllrer, the owner, the "s.cr, "/d. § 7.11 (n1".1 bddm). S(C >UP'" § 56,04110111].
"/d.
~ 7.3,~
(m..,~t 1.140"').
S,-,' sUp'''- § S6.()4110Jltnj,
., /d.
i 7.3,9 (mo"II><1d",).
S", supra § 56,04[lOlIn]. " ld. •,;<,
~
7.3,10 (m
'"P'" § 5(,,04[10][01,
., ld.
~
7.3.11.3 (0'01,11"<1<1",,),
$", '"pr~ § 56,O.1[lOlIpJ. "ld.§ 7.3.I:!(m<,,,It.14dmj. S,'c '"pr~ ! ~6.04IIOJ['Ij . ., la. § 7.4 (rn,lalloo!k"j,
S,," ,
~
S6,~1101[r],
7.6 (rn'«III,&k"j,
S,-,· inf",
j
~6.06.
1'1l0U. 1..1,\11. l'k'\CIICf. (lli U)1: or Ih c~r :Igcnl ~." Many of 1he i n-scrvk~ I"'I~ n r~
le)-lIuriwnt:d Uc~d illl:. In this 10;1 fo r sin s!e, c.'\ ~I. slo n, anti combi ll:uioll laddcu," th u J"ddcr is pbcc'(l ill :l flu l, hun zo" I,,! ~i· I;orl, lo.,d~d in :l~co1(lal\cc whh T:lble 5, 3nd 111(11 un lo.llI~t1. A Ikllec\iOl' ICSI 10<1\1 is Ihell ;,pplied 10 bolh ~id ~ r.lils in a ~lI«ific loc;;1. Iio n, ",)(1 \'c n i~al 111"'lsur~ llI~n ls nrc Wkcn of bo lh rai!.l, bl;forc and durin GiO:l ding "lid "f.cr Ihe load i. r.:nt ovOO. The m,ll);inlU!ll n"crag~ dclk<1 ioll ofbol h side mil~ ~ 1l,,01 uc.:a.I:1 '-:l llIe 5<.1 r"nh ill T:tbk 6 of the 1il ~lId~ nl . An ;llcrca""d load c'!,,-,.I (o lit. ul1im:l!c IOS1 1001d. in :lcco rd:II1~~ ",;Ih T:,bk 5. i~ Ihell 3p(1l":d 10 l ite L1dd~'T. 31 1bitt diff~'1'Cnl sp.:cifie 'Utls loc, liom. ' 1,e ladd"r ", u~t suslai n the 10:11.1 willlolll fuilurc." [~nencelloll l'~st.
Thi. h:st"
i ~ dt:~ig tl ~d
10 be
~ s.:d
bot h M
a ..k~j;" "",rific;lIio" lesl, ror the m~l1Il r:lClU"''T. ~ rn.I an i"'~i""icc 1"'1, Fo r the u ~ r. The ludder i ~ prdoaded wil li lbrd. 111~ Ic:<;l "",,u lls an: '''''oukd 01' a d~ '!l ~Io:t:\. A deflc'Clion I~ 0 "crl ical dj.t an,-~ from the eX 1TCme cul~kl o cdgO!i or lh o widest ",'(lion of bol h rail, 10 the floor. bo th before loading ~ml ..... hilc Ihc r,,1I 1,"'1 1();It! is ;11'111i.:d . The I.1ddcr nl llSl p.'~s 1m: II:St ",ilhoUI Cl.C«dinS Ihe (kfl,.,;liQ" a"d MliCk o f IWiolt "'1 for1h in Tabl~ 8 or I h~ ~tn!1dilnl . I!.:)-Jo:':':I,....'ilOII (-"dde. Ru ng·lkndi.1: S IrCf1!:!)1 TtSI_ In Ihis lesl,'" 3 dowl1wa N diS(rib1u
: .1.1.
" rd. "M. I '.2,1.
""1 %' .2.1 .2-
" rd. t
1.l .2.
t
'. l ,S.
.. It/,
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I'ROU, U ,\H. I' MM ; n CI : cumt:
5/>-16
r.oil ..':mlile"w bi:1l(linS IC'5 ls,"" 'Th . pu r-pos.: is 10 du:<; k ir Ihe b;.se of Ihe ladd~r will be nd when a In.~d i ~ upplicd 10 ii,
In Ih~ ,1:lI le side, r"il camiic,'cr h.nd!nIlIC~I." ~ l:1ddcr is pbc~d on ils edge wi lli Ih~ rungs \'crtic~1. Th ~ lower gidc mil is U"sUpfIOrIcd. from Ih e 11<1410 111 end to the midpooiut o rlhe lowe~t runs, A tC$1 hllld is al'l'iid m3'mer, Nl'ithcr side r.lil C:Ill suffer over Yo inch of penna_
.,,1
n..
'rh ~ s..'(.~Ml(1 t..OSI , Ihe , ide-",il c"ntil",·c' drop ""'I," i'l !lmil:!. 10 Ihe S.11r1C l e >l performed on wood ell laddct! ," [Il--S i~ e·ltnil Bcn~ing Tc~t, 'I'Iri ~ leSt" rcqllir ..", placin g a 10ld, in ;lcenrci ancc wilh Table II ol'th" "Iand a rd, o n ~ ~tx'Citic 'fIO l Oil Ille middle ~ I Cp ~dj:l,:cnl 10 one side 0( lh<: m il of Ille lalklcr. 'nl" m:At lIigh<.T st<1) ;~ th"" tc:!;, ..-d. The bdlkr mUS{ Wi! M!lllld Ihe 10.,<1 wi! houl (pilu . ....
l'h'Clorm Ik'fldilll: Ten Til" I<-Sl'" ~v~lu.1l~ lit<: I)f Ih ~ i l~p or pbtfmm .....: Iioll by ;'ppl,'ing ,tlmd over lit e full ",-,dill u f th~ ",ep m [ll:\l form ,u,d Oil II.., <:c1llcT of lhe 101lS"'1 [ml-St~fl llI'
~H~lI gl h
or bo tton, ~IC p, 11 Ihen i.!; u[lpli..-d to Ihe longest like SICP will,o ul hr;lc<'s, '" w~11 'I~ 10 .te[ls or [lIUlforms of different d ..-.;ign, or >!",clfication .. The luad h; Ihen :lPf'liod to Ih ~ lUI" C~[I of a , tel' >100 1. If there is t
[nj-Sltp'lo-Side- RlljJ Shu. Stn:nl(lb Tffi. This test" c~:du Jood r; 3pp lictl
,110 Iht Mw 'gt h of Ihe ~ICp-lo,~;t"'~I'lI; 1 joi n!. A lCS1
Ihe 101\;0$1 bmeed ulld "nbr~co:d !'Cept >li th Ille k,r;l r""",,;ulI.
., iii,
~
' ,M,
.. M § 7.1.g ,L
. r /J. t
1 , !.~ . 1.
.. S,,.. ....JI'II _ . , ,\NSI i\H ,l , . l it
~
' ,).3,
"Jd.
i
7..U ,
~~.()I(IO llfl _
J i,D,
.
,"'.. stool. Whell the 103(1 i, ,,'mol"W , there must be 110 indi(':\tion o f lal f3lm,!! in II", faSl eni,,!: tu~~rlS IInaching the st ep \0 lit.: side 1';,11, or Il'S' fai luN or ~IW COlllPO~n!. [,,}-R~H C~n l[ Ic .'er lk~d(u~ Trsl>;, This h:"" m.",u,,'i rhe hcndmg slrcns il, o rl h~ frOnl .nil" and the rc.:', ,,,i l," II 1~1 . 1xllh Ih. "in" tow :tr<Js the c,'lI ler bending nnd Ille "nu\" ~w~)' from Ihe ccnter bending " f th e r;lil~.
' ,, '
Inlhe rf(l1\l 'r~n bend irl S lest, the ladd"r i~ suspended on its si(lc, a load is "pp li cd to tIle hOllnm end of a fm lll .ide r:,il ~I Ihe l o\\'~r end. T h~ ~111'1C Ihili S is drill" 10 the lOp mil. Jf l lw; r~ is morc I han Yo in~h p.: rlfil"' CIIl ddorm31ion of ~irhcr rJil. Ih . l,d dl'r fail ,. 'Che billie. i. Ihen r~"'WSl.~I. so r l>~1 IhI: boUOIn ""I i~ !lOll' the t Op r:lil. Tho: J", kl~ r ij h~l''!I the 'i:11Il~ "':ly. ~Jld
"r
n"
' (';I f
rai l bl.1Id illt:. Lcst is ~'OrIll"~led in Ih" Smne m:lnllcr. A
f.onl ;).".1 tea ••.1il dyu"mi~ d" .... ICSI" also is u~I' o ~,·,' lu:>,.: ,he ~Ircnglh of tlt~ r:.i~.'· 1.11bc]jtl~ L:ldd~rs
§ 56.06
Th, '1""~"'~
ru, 1...... I Io~ MI.," •• 1:Hld<",",'" lhe >l~",.,d rOt b ~II"~
mot.1 I.'~" ,,, ",. Ih....... 110<'0 ,.... 'h"", [)-p...... / W.. l. or "'"'klni:<,
.. ·'""u,''"'" ..
""J
I'd",u,· ~".~rd ··rt.,,~,,·· ,d ",kl,,!!, ,".'11>< ~"tOhl ,· (",",.,,1 lie ~I.'«~ I."n "b","" Io
>I,,,,,,i ...
""_ ~ .......... ,........... r.. "..... I"" .t. 1~ . r oyooJOI1\I" . _'0. T.."
•IIt
'Of Ihc '""toI-r~' b"'· 1 ~""lr~I""' I ...h"k ,t." .
:I
. on .... , ......"'... ...- .......
rq:io~ ' ''''.
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1Iot h th" ,;t"",Ll ld (or \\".."" k;, L-.ddet"ll ~t1
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t S6JI6I IJ
1'11(1). UAlt I·H,\(.TIO: GUIDI;
q u jrcmC!l1 ~. 1 A
prad u"l ,,'hiell i ~ Impm[!<:rly or i !la,k-qua1~I]' Ihe st 311d:'r.... i. tkfcctiw. Ir Ih" I~,k of it Ilrnp<:r w~rnint or inwueti on Inl><:1 ~onl riblued 10 t 1-: ;tcc;dt7lt , lh e ucfcll,lull l ;, li .lbk' m;lfk~-d. Of f~i ls 10 COIll(lI)' "..it b
Ih~.c
nrc thrcc dirrer,nt IH)C'; o f bbo;:!. or n~"k;n:;Jo: ( I) I'rim;try l'lulnrd "Dange r" nlld "C3uticlI\" markings; (2) 5afcl~' Usc InsUlleti oll Markill!!,; "lid (3) I'rt>dlK:l D~ I " Inform,,,;on MM~;n g.... {JJ-DaRl;Cf aad Cn l iun Mnfkial,."i, !>nnwr}' h3Zl1nl unng".... and "cnulio n" markins~ mu ~ 1 conform 10 Ih~ uo:>;;gll principle! elf tile Americall N ation.,151311tbrti Sp«'I'i'':> IK>1l!\ r(lr A ccide nt 1" ""<'11' lion Sigll$,l t3!
[ll}-Slep!addcn;, Tlm:c ca lltion/dunger label> ar~ r~quircd ror stcp laddel1l, nnd Ih"i.!ocat;OII is speci fi ed in th c ~I:md:,rtl.· The !:tbel~ 011 the Iftdokr ;n~()lvnl in t l~ !;,,,'s uit s hould be ca r" fully , on,· Jl~ r.-d wil ll ihe req~ir~mcnl~ of lh ~ \l:mdard .
[b J-Exleruion ;ml SiJlI# l.add ~u. Pour t;,u tion/dnngcr 1;lbo:)~ 'Ire w luir.-d ror :lingle and c" tt:nsiol1 13tkltn..· U""''C'o-.:r, tk-pc,ItIi l1s 011 1heir [l1~~C mCJ1I, the liSe of lhree la bc:l. nmy 1 "m~-e Il1ldcr th.., ~t :l1\' ,lard.
(l)....s.'ct)' L'u lnw uct ion M n,kiJl!:i, All \I eI'. "~l (n~i 04', ~ntl .irlgle l"dd,1'> l1lust be nmrked wilh i:>{Cly USc i",tnlclio" , ! AN SI A I';. 1- 19S2, AI'pcrl di~ A, figu re A3 , ~"IS fll r!h S.1 r..:I}' u
H,~,
t9il
A~S I
• ,w "'r-a i y",O!11Ji' lIiii\. So< al"" L F"'"l
U . loili' I' u. s rati",,«."
.1·...
f ),Ol\oI\O\
tknd<, 1906),
, ,\ NSI Z.1 ', I·l?7!. . ,\ SS I ,\ I ~. 1.19S!:
) tJ,{9.1.1.
I /,lj
9.1.l,
, to! § 9.1.
I' ''',J" ~I '
Li, bilil)', oll. 2.
HM ' "..r",,~,
...,
f 1-n t.~b""""- 1I.,,1it< ]951) a nd
9.1.l..l.
L\ ',JmRS ,\SIl SCMHlLllS
5(0-1"
S""d fi, ,,'io,,. (or In(oc m;,Liomll Signs
Compl ~m~nlar)-
10 ,\NSI 1m:
z.l~, 1-1 972 ~nd A~'CidCtI' 1" "'-"II'u", Signs, "KSI Z3S...... ' 973. nH"'\lfll~ UI,cr'~ l~bel
doo lIot h~\'~ I() comply wi,h 'h= labcl ~ ve rb:!-
lil11. ' 111.; Sl~,,,h rd splXir"", the kx':tl ion o f ,ho ",:o , ki,,&,' ~nd S<'1 i lo"h ,I!.: ill(Offl,-"ioll lh( •• 'N: "" relt uS/; i"~'ruc:lio:ns ~hould i ..cI" dc.'o G"'k:rally, ins"u c lkm~ should ~ovc, pWI"" "" /celion o f " l;,
ladd er
'lcci(k1l1 ~ ~re
the
r~(t h
of imrrop.: r ladth:r
(t~a!.!~. Ih o warnill S~ :tI1d it1>tnl clion~ ~hould be cur.fully C~ ltmined
itt evc r)' c:ts~. Th t l'laillti!T nlll . t III;: queslimt~d ~om:ernin s c~eh in· . lmcliQn, Eac" \'io~1I ion or an c.' pr<'$S safe')' us.: inst rucrion will incr~-:l":: hi~ .wJlp.u (,li.·" n~lige"ce. II m~}' n~s.1 'c any d cfco; . in ,Ioe ladder, if !lIe defect ..'(mid 11m be climill(lled by Ihe IlHtlmfacl ur ..... ~Ild a " raper wurnin,: or InSt mclio" Wllilid h'!\'~ r r( """led Ihe "(',idon1. [31_ 1'.oou<:1 Olin I nfom'Ulfioo Mark;"!..... The S(;u t(l.,,1 r«iuir~... •h~1 :t tI(lOd (1",,1of infon mllion III: (Ollmil1w on a " rod un dJI~ informalio n luhd." Th e i tlf<.>rm~liol\ I;. impm ' ~nl 10 ,h e UllO nte)' fa r a numh~r of rea"ltt ~ . T11('
ht~~l~ ~il~ ~ lId
"m,~"rd 'Id.~
",/.
crileria
~p"ly
du,y ra1 ins ;IIC ",;""",bl to ~Ictermin ~ which 10 Ibe 1ad~ct. T1", nl«l~l l1~"'e und number
9,1. 1.1,
~ '1 ,2. 1.~_
toO /J. f ~ . 1. 1 .
" I't~~ .."
".... ''',
PJ(()J). LlAn. I'Jl-\CTlCE GUJlJE
l6-S0
am! the rmme 01' the miUlllfacturcr arc of COUl"">e cssenliaJ iteml of il\form~tio!\.
The mOll1h and ycar of manufacture will help lIetermine Ihe applicabk "amlanb. (N
The adhe,ioll test" incorptlnrt., ASTM D903.49." which i, a lest for p<.'el or stripping 'tr~llgth of ~dhe,ive bond,. A minimum force of 30 Ounc,," mll~t he rcguirc1J to rcmo,'e the label. The Icrntch resistance te,t 1< r~quirtlS tlte label to r";i~t def:!c.ment or remo"al when a n"t mel"l blade i, scruped aero,,, the lnbc!. The test i, .1111 011 the label both before and artcr conducting the water imrncNioEl tes1. The water immersion te,t " requires the bbd~ to adhere to the ladder "'rface and remain Ic~ible :iller being itlllllCf1ie1J in wmer for ~8 hOllrs ut 7S desrce~ F. The oven aging te<;t" r~quires the labds to "dltere to the ladder surface arid rcm:lin Iq,ibl. aftcr being placed in an ""en ,et at ISS degre'!s tor 240 hOUN.
Tlnr.,. the bbel ,holll<1 rmt comc ofT the ladder. absent extruordiliar)" circmnst:mcc'S. "!d.
~ 7.1~.!.
t.
" A \ "ibole Ii,,", Ho< Am"ri,,,,, S<><;"l' I... , T "tjll~ "ml Malon"I_. 1911. St,«,. I'ltil,,,ldpl,i,,. ),,,. l'JlO.l. "1I14.t_1%2~
"Id.~
7.18.2.3.
"Id.~
7.18.2.4.
7.1H.!,1.
t(,>«
"
, '"
"""","
'
UOUUtS Arm SCAf}'Ol.J1S
§ 56.07
l.nddtr Selec tion, Cllrt, lind UliC
Tile _jor ... """otr't" f.......lr..., """ncollMdcrs .. ~ r..;t II~'
""" 111"01:. 1.".. _
)cf na;n.r foil, r",,.. _
of.roWt.
...!f'"'l'jIOI'H"" .....
lollr. l>oIolors or. I.t..... lldl"g . t tI•• lop 'lI1'(lO
.,.,.,.prio
or. I",porloot .....
Id....I."-•.
.\10' 1 lodd,,, n. r ~C.ll;II
' ' 'JI(>fI.•:......
f. _
L>M«. _ . , . ........ ',. .....alMd, '''''.'''''1<4, ... . ",,,,,,. It I,
""1«1
1._.p"""
......... , 10 IJoe ltoId"Iod'........ h u.... 1f ..)"mmankol 1'01 i ... IX II ol~lI<'fr ... "rlol _ .. oi l I. on I"" 110<: l.t
,.,ttl
[l}-J\llljor Copses or 11:1115. The ANSl .!andnrd ~tat~'1 !h~t t1t~ lluljor cnu ~~~ or r~ lI s from self-, upported I~ddcrs are (J) lack o f ~ I"·
bility. am] (2)
~Iid!ng.
The maj~r C;IlI~'!i of fn l l~ from 'lo!Hdf-~upporting pO.tolll<: lad. dm, "re: (I) )"tcral ~lidillS at the top ~uprorl; (2) cutwMd ~ lkJi n& at tm: lower b:I,;e ~uPiX'rt; :tnd (.J) hllman !Jipp.~&~.
TIo" . t:",da ld cont JiT~~ a "SummaOJ' of Signifw,lIIt ,,~~u..'f\t Cau"",,"'" lllcsc "c;J. u!;o,.'!io." ho ...·.,.,'U, reb ,c only 10 :t<;ciWms ;n,'OI.... ing oon-dcr~'C:ti"" I3dd~rs wm:n lhe uscr is :11 faul t. (21-El'id~tfarr V:ll u ~. T he ANSI stJtu:brd iCt' fon h Ihe ilflfll'Oo
p.iulc procedu rtS fOlthe Care ;Iud U!>C: of l addc r~. TI,es.: >hOllld be reviewed and cO nl pJrcd wi lh plainlilT'~ aelioll!. El'idcnlbry Ufoe of lh~
porti on of the Sia nd ard, to imply that the pbimiff' i ;I~I ~ pr~'C:lpl. t:ltOO the fnll. is Imp'o!"'. nb~ 111 a showing that plaillt ifl' aCllI ally did ~I1C orth~ ilet,. prohibited by the ~Iandnrd. I JO\\'e\'er. if the pbin. liff tc~tirll.'S t h"t he did irl fncr d t! one of the pr~cipilnlins ~m, wit h. J
.-
AI'.1-19t, j
~. I
,J. T~I>I<: Zl.
..,."
",
PROD. LlAIi. I'RACI1CE GUroE
l&_S2
out knowing it wa~ n cnu~e of the fnll, he will be ,on~idercd comparntively negligent at the len,t.' Thi, portion of the ,tandard is mcfnl in other, amrnmtivc wny •. In some ~tat~'S, such as New York, ~pcciallaws protect construction workers using ladder,.' In such a situation, proof tlmt Ihe ladder II'US in a dcfL-ctive condilion, eVen if the defect was caused by the plainlifl's employer, will hold Ihe general conlractor and building owner liable. Similarly, proof that the plainliIT WIIS using the ladder in an improper manner, even if lie himself set up the ludder, will hold the general contmctor and building owner liable.' In caf>CS in which the ladder was prol'idcd by a third party who can be sued, ~uch 'I~ a general contractor or building owner, this por, .'1<:< g""",ally '"pra
Il. "[}Cfm"" '00 IJ.,,,:·
S,"~I",
I.. F'um".~ M, Fri,dmon, P,odu'l' Li.1bitil)'. cl,. 2. § 2.27 ··M."uf",,· ,ure,', Liob;l;ty;n No! l;g'nc," (.~!alth,,,' Iknd" 1987), l Dan"se, in T<Xt Act;on,. ch. 48. '"Compo,.ti," N'JI;S
Looor
I.o,",'~! 2~O.
241 (McKinney 1987).
For !li",u"io". "" Zin,,"" v. Ch
'S,,·. <.8.• H.im", '., N,,"' York Tot, Co, 46 ~,Y.2d 132.412 N.Y,S.2!1 56l. lBl N.Kld IIlI (19n), TI",de""",,,' "'"' ~mbn~ IS f,,' 000", the ~round 00 hi, G"'n bdd". p.1inl;n~ " bu;lding "",nro by lh. d"fembnt-tdophonc e»mp.'tI)'. Th' I"kkr ~'" n'" ,,,,,u«d ..., ""Iu;rro by 'h, N.", Y",k lh1Td of SIOOO'''''-' noo AN''''''' 12 ~,Y.C.R,R. 2.1·1.2l(b}(4), Th< d
Th, Rub ol'tl", lJo,ro ,>1" St,"d~r,h ond API'",I, ,equi« 'h," ",hen wo,k ;, 1",. I'u'm,d un ,u"~' hi~I"f thall 10 f,", ,l",.'o th. l,!ldor foot. tho uPl'"
n""j
",-"",
!t>-IIl
I.,\1I0l>"S ,\:<':11 SC-\tl'OI .1lS
lio ~ of t h~ .",,,,d,,,,:1 kn inJl. !on h !"
(3}--I~tddcr ~I~diun. T here arc sc"em l fac tors ill'"oll'l....t in .clcC Iladd~r
hlg Ihe correct -n,~r<:
for a job.
,....: four d m )'
cJ3~~ific;oliol1~
fOT l"ldeD: ""'o, kins I.'o.ld
",
l!\tr. no,,,')" dilly IIc,n'y dUly M ~diurn d",y
H
I.i ~)n ,IUl)"
'"
'00 m '00
'"
In ", k cling Ihe "PI'm"r~llt l~dd~'1". con~idcmlicn s hnuld be &ivon 10 lh .. lc" tlh rcqnirw _ the worl:.i nll ioad lhal will be 00' Ihe ladd.,,-. lind l h~ llInounl or uS\: Ih .. L,d dt:r will m:ci\"c.
Th. worki n~ 1
u'<\: m.~li lllU
To ,;e!e.:1 :1.11 c~t~".i(",
bdd~r. tile COnSumer "'U~I kilO'" Ihe heiShl of the 101' ,upparl poi " l. If II j,; lL roof "'''·c. thc ladtkr " 'ill lIa,'c 10 ~.'t~n d o ne to (lire.: f
111
~ll"C1ing
a
~1C ~bdd~'1".
il .1",,,1<1 .,., noted
t l~,( ~ath
k"t1 h o r
I:Wdcr \l:o;. ;, high..,,;. sl~ndillg 1",,~1. 1'", inM~n'c. fnr ~n tight-fool 1:....... ,,(. lh" loiS,"o.l SI~ll(I,"g k\"eJ is fcrl. ni,,~ in':! ..... ·r" d ••1CC"-
Ii,-"
. "I ~ .I . t~nt
u.u.
• /J, j !U , I .j , I .
"',bl, 2l. """'"
1'11011. 1.11111. 1' R.\c nCJ; m : lJ)J; minc Ih~ m:uimum ,",ork lIeighl of II "~l'ticu l u ladder, atld III. II scr's heighl nutl "lIf~ r.ach 10 Ihe lI iS ht:!ol ~tn!l(.Ii n~ Ic'·e.I af Ih~ ladtkr.'
All ~.~ IC!!himl ladder may be tOO hlS h far the work to b~ d"'l e. If a 28·ftxlt ladd ~ r is used, no work ca ll be IICrformed lxlow ,I ccrtaiu pOi l\1. u.cu,, ~~ tile worhr will be 100 fur nUl 1I""1IYfrom the bui ldill(: 10 r..... . ~h il s:lfcly. Thu,;, ~ 2S-fam o:.\ lClIsion b ader C~l11K>t 1>Ill,·id.
a .." ch 10 I, ll I""d s bell>"" 2S fcel. A ,",ork~r ~a" u'u ~II}' =,'11 fmm I h~ ; (ound up la a h cij!:ht of or >0, A ! S·foot eJ.len';OIl I:ld d ~r can be clooed to 14 f~"t, bUl On a 2~ .fC)()t ladder, il is a prob lem tn wo rk l>elow 10 f,'l:1, So b"IWtc n seve .. [cetluld 10 fcct. there i~ 1\0 fCllc h. Thcrcr()r~, [I dillh· ent ,i7.~ I:ltld er will IJ:I"~ to be ,tiCClcd to reach thn,c heiGht s. """~l rC~1
T h us. I ;uld~r id~Cliol1 cnn b<: problcnl mic. Uw uf "" ineorr~'CII)' sil.nl ~"Id<'f call crC'JlC a d"n~crou~ ,;IU:ui"lI, weh;l.~ a wc rkw h~v. inG Ie I"", a nd '<'Jell OJI rhe IaddL'f in an u tI.'<:I f" "'''Y. T he work si1 e mll~' l imif the I' ''al h of !he lad
augle 01' incliuati on. the bottom mar slide. A ~ho rter bdd.r th . refe r" mml Ix ('IrMlded. T he oollOn ' 3" ti lop ~u ppon for I he b tldcr m"y .u.1 cn n inc wh~l hcr a Slcplatklc' or an c~ leusion I~d ..",r j~ pr"fcr:.bk. For in~lanCl:, 011 "" U"t'''" slope:. lhe four Ic&~ of ~ lI"pbddc r ma )' oot be able 10 Ix suppor!w 0 11 a lL-vd . In SlIch ~iItMlion .... if th",~ U. ad.-qu~tc lOp SliPport fllr ittl ~;tl,," , i!ln bddcr, il may Ix m ore npproprial" t" uie un eXlc"~ion
[4J
l.1tlder,·
Rules
{(IT
L:tddu Use
[u}-Imcnded Usc. Mm\ ludclefS MC de~ign~d for Ill': by ollly o ne penon , If a 13dlle, is 11"";&,,«1 for usc " 'il b more l bJn Olle p<:n»I'I. ' I.t:~ ~ . 1.I.).~ .
'iri. f 1.1.I.U . • /d. t U .2,
",,""
LA[)llliRS A"I1l SCAFFOLDS
~
5'-07[4]
the ]abellllll't 'ay ~0.1O (f tbe bdder doc:; not 'lnte il wa' d.sigll.d for marc than one pel"
Tbese two COmmOn improper placements are usually the fault of "hi.
~
U ..1,
II JJ. § U.l, " !d.
" !J. § '1,1.1, t 9,1.1,1. Appel,,!i, A,. !d. § U.', Ifllo, 1"I>OIop i,,,'lo,," 18 j"C~" ""Io~' Ih, '''p ""P. ,hi, mlo d"" O<.M OWl)'.
D" Ih,
to"""" '0' " '''P SI,p ,,,,,weigl, 111, dMgor ,11", ., UI<. wilt '''' il '0
(On? 11 ,n,,,,,k, or an invited mi,""". ""rile Ihe .;,,,,ing;, M,,,l' u"''' wilt ",,,-,on 'lnll i, m"" "" '0 'tor (]Il or it woutd no' "" th,,,.
"f,
""''''
f SU7l41
1' 1101).... " ... I'RACnCI!: Cl"IO!;
,....
th U!lCr, ~lJhough 5\,ch a fall w mctim ts i. cau i\l:Uby a defc:ctive bdder, ~uch as one with jm.... l" To gct optimum r~sistallcc \0 sliding. non·'elr·mpporli l1g lnduer~ sltOl,lW be Cl"«tw al ;\ an~ of jllclinaliO Il (or " pitch") of 7SY, Iksrccs from the II ori zol1t~'. The "qu.1ncr kl1l!lb rnle" provides for $...:11 nn llllSlt:. Aecorui ng to the quarter length tule, th~ ladder should he ~d up!.O IhJ I Ihe ~ Is 3"""Y from th~ wall "di~;\nce of onc-<juatler ,', c cffreTi,'c wor~ins Icngl h of IhI: !nddet. TIle cffl'<:lh'e W01~ing ICIIGt h me.ln~ the distnncc of the .ide mils, from the boU()ffi of The $ide roils, 10 Ihe lOp ~ lIpjl
ladder
ucu.l~ble.
[fthe b ddcr d~ not Ila\'c (cc!, h~~ ,,"om, m~ing or ~ Iippel)' f<'>l.:!, or h~& an i01prop<:. !ype offOO! for the . urfx(, the ladd~r mn)' ~Iidc O\I t"':lrd~ from Ille b..w, l fdl': fccl!lre unsupported or um lnb!c, the bllder may ~Iip laterally. Proper fOOl ing for 1"'= !we Or the l."ldd~r will help a"gid oUlII'ald and l ~leral 5\iding of the fcc! ~nd enhallce Sl3bility.
The rules ror foot ln&su pport arc :leI rort h In the .r~ndard ." Tlte I~dder b" ~ should be: 011 a firm, je"eI ~urface . It m~)' be llccess~!)' 10 use "lalkler lcvclen" TOgel cqu:l1 rai l sappan on IIl1t ,'cn ~u tf~cc:!i. Slip reo;;slUIICe of the fccl enn be enhanced b)' shoc~, spun, sp;k.:~, Mmibr devieeos, an d combin)tionr. thereof. Whcn nee.;s,sary, the)' l' Set. t., .. Phillip. ,'. Hord.·",. Whol"'. I..... In •. , 7~ ll'. 1~46(E
,h.
,'.
Con
Alomin iom Co .. 619
",>d~. I' 191l~
" 1<1. f I ..U .
I.'.'.
s.w.~~
J4! (Mo.
19 S~).
,...... ,",
U,UORIIS
A ~D
sc.\FFOI.DS
should III: illSI~ llw, A fool b dder boord o r !.imilllr devi~e AlD)' be u!II!d jrlllt b dda d~ '101 b~w safel)' sbQC:5o, spih"l. 01' :1 , imHnr d.,..
,·it.,.
If the bddcr is lIJI:d 011 i c~, ""0W, or slippe ry ~ llrf:IC\:S, :I IUi !ab l ~ meam must be pro"id ~d to [lr~.'clH ~li rpin s. [e}-Top Su ~Porl, A mm·.elf·supporting Indder ntUSt be laid ~ Iip latel'lIlI)' ~nd either fall , or eausu the \I~tr \0 I
'lsai"'t a wall, tlce, Cit " at the top. The top can
Tho IWO side rnils sllOu ld be phlced so th~t they lre sUpf>Orled <'quail)' 0\ Ihe lOp. " Some b~ lk" Iw\'e a single support a II Jd,m"m for u.., >I'hen the ~l ]lport is n pol<:, buil ding corner, o r Irtc. 11", ~I· 1:1<:10"""" shoukl be larse ~nd sub:!.ulllli.u ooough to " 'P(IOrt the I"d· det Dnd I""d. If Ihe L.... d., b.u 10 be pllCW "pinst ~ window, it $Ioould II/we ~ devic:e 3c ros, III.: b....:k of the '~dder. which eXlends ncl1)5.~ ~ he " 'Indow, 10 pro"ide rinu support ~S'linM the build ing "'nll~ or window fr~m",.
[I}--..<;irlll LO:Idln~. Side l o~ding occurs when a lI~er rc~cho;i 10 left or ri)Jht. E~cesslvc side lo~ding make'S the I:tddcr 1U15Ia bi c nnd cnn cau.e It to ~lide nt t he bn.., and at the 10!'. Thj~ Iypi~all y ~he
O<."'CII[& when a "'or k~r W~ll1~ 10 "void climbin s dow!! and r~fIO'Ji l lon· ing the ladder c1,,~r to the work." The ihndard SlatC:9 Ilt M ~Ide 10... lill& mu,1 Ix ~"oidro '" nnd tlml the Ind,ler musl hi: h'f\l cl(OSC t() the: .....ork. "
..
[I\l-Climblnl; Wdtrs. II ladder ~houJd Ix moumro f.om l ilt bot lo m. nOi f,om the side. Climbing o n from Ih~ side C3U§I;S the Inti • ' .'d.~
8.l.'.
<.,..
,. 5 ,'" lti~l."d ' -. Sin" , L"",\>a Co., 11 .... , 161 M ld 9" U~. CI. "PI'. 1971)_ Piainlifl-. a ,i~n ~'''S(f ...."oitlt
"r
Ihe I"dd",~
~ot'h". 'I" ~ court onhm«l jU"Bm
"'A!4. 1·193! ,
w."
~.l.6 .
" Id.
,
PROll. UAn. PRACn Cl-: GULOf. der w be
IInb.1l nn~cd.
Ih o USCr 10!me his
If IhQl~dd~r lilM- il and r~ ll. ::
( :In
fall.
--- " Of'
il ( :111 l"3US<:
bahtn ~
The 8Lnnd:nd Ihneforc "'~1""" 11"'1 ... h~" ditnbins th ~ laoJd~..., the
user ~ holli ll r.1Ce t he Inllll er ~ lI d h ...:p a Ji rm hoill. He mll_'\ ll
e:1! circui t! m lL~ 1 be :.voldro. If a tn d al la.wc r. or a "'000 b ddcr "'illo sid e·flli! 11I(1 ~! ~i nfo l1:c n'C n l u·jr..'S, rom..,~ int o conta~1 wilh ~~po'icd
~l'eeiJi~3 11~'
d..,;ll:':ncd for u !~ !\~ar electri c power be k<:Jl! ~Wl'I)- from . 1<...:1 ri.
lin~. With th~ t c;\C"Cption, L"ldden ~hould
power
lillc~.
(I}-AC"e1.'M In Roo f. Whel1 ,1 I ~d!ler is u!ot.>d to gCI 011 " roof, top of the In
roof lin e!' The I ~dde r ~houl!l b.: Ikd !lllwn 10 prewn! il from slippinG_ When the uwr MCfIS from th.; l3!ldcr til the mol. tbe,,: is a dllng<'f" that he may tip tlt e la dd~r, or cuu s<: it to slide, and ~pccial care .lIo uld \Ie
. M"",p""
u So.... ~.~.. ~j'" .,
''''n
n1 0 J'!;,IIk bot"·",,, lodoI", In ~'" :oJ a = 1'Md " b ile p:iliI'in~ ut.ti ....d l. 11< o6ml>
n , pi> i.,iIT hod rl"
>I''''
.1"" the OI·;U," ", rtQ" idod ~..~,
,"nkkn' ro'. flr idi n~ ill r",,,, nr , ~ , p\>in,jlr.
.. A.I~. ' ·1 9~ ~ f U7. " /d. i $"UO.
""' ,,',
],,\DDERS AI\-D SCAFFOLDS
laken at thai point" [j]
Larlder SCUlll :l"d Adjuslment
[i]-llxtcnsinn COld de.". Exlcnsion Inddcl'l ,hould only be ad· ju,wd wh.n the user is 'tnnding:ll the hilse ..rtlle kidder." The USer 111u,t ch~"k thai the locks arc propcrly engaged. that the rope is tracking correctly in the pulley, and tlmt both llppcr and lower lad· der ~upport points are contllCting firm wpport ~urface.;. The uscr Illllst not adjt~t the ladder fWIlI the top of the ladder or while anyone i~ standing on the I"dd~r." A l;IJder c:mnot be n,,]\'ed while :In)'otte is 011 it!' (iil-StCllll1dder~. The IIscr must be :;urc the ,tepladder i~ fully opened, with spr."dcr; locked. nlld all feel 011 n firm, b'd SlIr· face,"
[k]-Ercctjnn or KxtCIl.,ion !.udders. An c~tclision ladder )m~ two ,.ction,," top "''Ction. called the "ny" ,cetiun, :lmllhc bottom scclion. "albl the "bao;c" ,~'Cti()Il. Extension Indders mu~t be sct up \0 tllnt the lOp S<.'Ction i~ nbovc, and re~tiTlg on. the bollom ,.ctiull. Th~ rUIlg leeh ntll.'l be CIlS;lgc'd. [lj-lIooks. Hoo"" lII:!y he allachcd to tIle top of the ladder, lo gi"e it ndded sUpp
U~e
tnddcrs. Some bdder.. such as trestle lad·
"Si:". ,\~., Tut ~,"l, ". R,D. 11'0"'", Co., 1"0., H(' ilL App. 3d toJ>. 40S N.E,ld 4n (t9,Dj, I" ""wing f,~",.1 bdd" to the H~lf "f ,I" tr,ilor which it w" killing, ,I" pbio@-r,,,tTtlo,,dhi,han,t,",,d'-""'to tho t,~, ,h,n "j « d hi; kf' f"", hd';11<1I,;"" It Wel, at thi' J"lir,"1.,,( ,~, Io
"['<,,,
<,,'"
" At',1.19~2* ~.3.D, "h!,~
S.lD.t.
"M.~S_),l~,
"/d, ! 8.,,1.\:, »/J. § >:.,1, tX. ,,, , ,.. >
(5J---C'.I1't nt l.u
tor
(I) 111 >('ICcI lire buder, "preferably" before each lise ." (l ) If .h" Ja
0) If the 1~(ldcr I",s il<:ClI ".~!lO!cd 10 eXC<$.,i,'c h"'lt. for d"nc'Clioll ""d ~t,el1S1h h... ro,e rell >in8 il."
it must I>c
lc~led
Ir ~cid. or :1Ik:,li~ haw gOl1tll on Ihe l~.ldcf. eo" " ,11 lht n"'''u, r"c lllr~" ~ illce il 11"")' ral llec the wor~i!!S It>1t1 of tl'" ~uldcr." (.I)
(5) Whe"
tr:H\~lXltIiIlS
the b lilier. provitl c propcr .upporl 10 Ie_
du".., dllfi ll~ ml
f,'1:'.
(6) b ddcn . hnuM ""' s", ...-d ml JIf
~, ~ .I .M_1.1,
.
"1<1.)
s.~ . I.l
.. JJ. §
~ .•
,. M
I.l.
~ !,~ .4,
" {d. ~ ~.',~ . I,
"tJ.
~
U _<.
".... ,",
,.."
' .<\ UDHRS A:-I I) SC....TOLDS
or if the .isllt)·
join l ~ \K:l\\'~~n
the
'( .p~/run~s
und the
sid~
.".
rai ll arc not
(8) If the !.:Iftl)" shO!.:S or padded f~o:( bcrolli C e.~ =~ivc!y worn, th e Illdder shou ld be taken OUl llr~crvice." (9) The I~dd"t ma)" bo: Coaled " ';Ih :l lT~rnll"'renl. noru:oruiuclivc: finish, r.\Jch as ....~rnish. sh.II~~. or "dear pr~'SCrvalive. bUI it nnJil not be couled wi th :tll)' opnquc cO"cri nS c.'\C~pl for id~IHlrlCali o n or
""awing. and thut only on ODe
~d~
of the side raill.'o
(10) Dkt, dust, grQ$C, grime, car\:ormo.:oos subs!nnci$, lind Giil."!" conduct ive ITlnlcri~1 may p ro\'id ~ n path for electrical ClIrrClliS 10 Ira,'ct 11,e l!lddcr 0111-11 boo kC/lI clean. 4) § 56.08 S<;:DITolds Gucrnlly A ""oft<>lol u 011 ."'''Ild or ....... .....,~ , Iolto,," aool III , u_nillc " ' ",W •• • • ~ I . ...... '" ,lot ................. 1.I~u" • ..." ..........1, ..... of
""114l"l'<- ,. _
.. "'... " 'G.k
by.hlo.o. t • • k~('(.ld ..... ,100 ...... , .. Ik ...... ..... Iao'''' .. . 1 , b ~ ... lfokl, .. til •• ,be lIUtIuf" '''rn' . 1.... "'. ' ....10 or ~_,. , ~ort> ...... 100 ,Ioe 00II. ,,,,,,1i<>o ., ... on.f1'old. ",~,' be 1I.1Il, ,. the "b,"llll. " ...... ,,,1<1 prod",,!> It.bllil, •• 0.. 1I,n .r. dof"'llI. plOd "'I. nil". o(Ollok! "DOl.tI, II.blUly 1I1 ~ .. h."" Irr~."llr Atllooto r.r 1""""'01·
~
Ilt:ool.., all<' >
.""'pI....
' .. lib ' 100 pIol. ,m .", ~_ •• ..-011.
""1.
Uodt'r. bt, ...... o l· ~orro'''r th,.,." ... l.jur t
. 10I.,i<>. ()(.
>t Olldot ~ ,
=.,
~I""" "" flold lno .... ""..,fO
• ..... f.<1o'" Il; "'~"I "'. to I.~o .. " ..... .,.,.,..., .. «
<'<"""_ to ....IIt. '~OI .."
.-_01...... "',1> ' 0 ,100 ..,.
"/d. i
8.4 ,~ ,
It Id.
"'4 f S.H .l.
., 'D. I
~.O.
•
i 56.oS(1)
I'RO!), L1Ali . I'R,\CTICE GUIlIt:
(I Kfneml Descriplilin.
ScalTold~ ~ ri:
llso:d in Ihe C()1~IM.l<;l ion.
nl=intell3llCe (~.I!. ' "'in dow "'llstling ami p:)inl illjt)' :tIld dt'molilic ro of build ing' and OIller Slr\lClUrc~. 1A scnFlh ld i~ "any temp()r~ry clc,'nrcd or ~uspend c!.l platforn1 lind it~ SUP flCrii nS ~lrucmr~ u'ed for snppOrting WOrkn\ell or malcrlnh. or bot lt. '" 1\ !impk IiC'IIrrokl m~}' Ill: (ompri~ ofju~I;1 plnltk ~ullponcd on tllc 5id~'S by two IMlders. The ~a rl}' movnblc ~arr
to JlIIllc)'s allovQ :\I\d pulled hI' olber wnrke l'li. To IOWL"!" lh e !.Caffokl, the lOpe \\'OUW bI: Jet WI; to !':lise the 5C:IITold. the rap¢ ....,ould Ix pu lll!tJ up.'
A5 call be nl"le'ed. on occn~i on, workers let go of the ro l'<-'" and the plnlform fell. Ropes broke. planks brol:~, ilud wDrL:cTS tripped 01T Ih . sid e 0( Ih.: .\ellffokl . MOJors rcpbc(d m~Ilp
Ihe
~Ir~in
of Ihe
~po."\:ding, fre~·ra1liIlg ~corro ld.
!k'(:.1U5\: 0( Ihe ho rrib le injulio::l Ihal lIa'· . occu rred in .""~lToklinS acdu..'f1I!>,· Ihci, d<:!\;~, ronSTrUCI;OII. nnd U~ hJS bn:n Ihe fiubjccl of c~lcl1!oive Jc~;'I"lio" and regu lation. Such r<:su lalion b s nol eli mi. n:ll cd defective ftClffold •. Con , lruction crews still fnshion Ih . ir oll"n rorm~
or
scarrold~.
Pam On Well·designed
~ntTo ld. br",,~ .
n,lckup
' $(-,' J~pn> eh. ~6, " l ....,.)I>Cl_ Liability e:,,,, lIi,I(IO"),," ...·hk h ' '''..,. . .... . n....,,1 ""'~ ),.1<1" rlal f""" . " ...~den"
, ANSI A 10.8·1 ~J7
f
1 (Defio;';"",I.
..
, '''1. ' H'" ,of 1(.lTuid I. , hi! iM.t...,I I. >e
• s,." "2-. 1( 1;'.. v. I< . Il. W~m", C .... In<... 95 W...h.. :!
,,,,.,d..
(ull .",• .", d rho d,n,o£< ·)o,h h.1d 00<., ,,
"'w'
,.be
)6-93
1,,\ IJDI(RS
,afety de"ic~, fnil. Safely go unworn.
,~~])
d~,'ice'
SCMH)1.11S
for worker>. such a>
~
56.tIS[J]
h"rn~ss
!xlts,
[2}-Stntc Lnw, l'rotccting Workmen Oa Sc:tffolds. Slate laws pro"id~ eXIra prolccliol1 for workers 011 scatTold,. For in>laJice. New York lm~ u law sp~cific:llly s~lIillg forth broad prOicclion and right~ for worker> On >,:affold~,' The owner of Ih. building !xing worked on, ~rld the gell~ral contractor for the work, are botll "abwIUlelr liable" for any "ioilltion of thc provi<;iolls of 1he ""affolding scclion, rcganlk",~ of whet her 1hey crcnled I he condilion, owned lhe scanDld, or "therwi~~ dir<"Cled, supervised. or had anything 10 do with the work. Tim" thc worhr"s compensation bar agnin~t a worker suing hi, cmploy~r i, avoid.d, since the \\'orhr can sue the oWlicr and general cOJl1racwr. e\'~n if his own company nWllcd the scanDld, ">sembled and urrnng~d the 'caffnld, ilnd ,up"',-,,·i,.,d it> \I>~. Cont ributory ncgligence i, 1101 a dcfclI\c to a ,-iolntioll uflh" , tatuto,)' pro"i,ioll, rcquiring proper '<:(,ffoldillg, mny
[3J-Commoll IMUCS in Scnf("ld C",~,. The cummOJl i,-,ue> discussed ""pm< with regard to lndd . " "ppll' in Inrge m~a,urc tu ,caffolds as well. There arc. howel'er. wrne particular issues that tend to urise in ,c~ffold ca'C5,
raj-impleading. Thcrc is nftcn a trail ()rr~~pon~ibiJity, leading from tllc oWlicr of Ille scaffold, to Ihe ~clter of the ~cnffold, 10 the lI1anUfactllrer of the ,caffoJd, to the lI1illlllfllctllrer of cnmponcnt • S/:,. ~,Y. 1",1>or La~-
~ 2~O
(M,Xi "",), 1%7),
'0""' "'
Thi, "",jut> I,., 1""" ;"1<'Prcteci by th< Kew Vorl pbdng "~l)(l"'~'ili()' ~,r,,)' ,1 <"""r"<. "n "~m " and ~'n'r"l ,,,"
fe'
Tliul. in
"1"'''
Now y,,,l;, 'he "OIker\
'()fllp
hI>' d,,,,, not m"all), pr",'O,,"I .,
1""' "'' injLlrro Oil . ",.,fi"old from idontif)'inr " I'iable dd onLIo,,1. rho i""" i, "h
tho 1->1.,. 1-"", pro,hi,,,, \1'", "i oillt<"Li. "ot who'h " lboro '"'' t",~li !", n,", \,inL!OII)' .111)' ("il",c of., ,.".,[fold ,-iol:1[" the >cOli",]. If the ",,,io," ,iohuctl. "omp",ti,'. I",~i!,<,,," i, not" "cfm"" Th«
w."
'·\""""Pfd~ ~1;'D1111,111·
part, of ,he !.Clifford, 10
lh~
1>131lufacwrer of !aw mal,'fial$ used in
Ihe componellt l~'rt ! rn Ibe ~nffo l<.r. E~~ h ", lIily i~ 1~lbl~ 10 lite pla;n· liff, und~r ' INcI p rod llCI ~ Ha bil;I)', uS a »cll er of (I dcfl...: li ve proollcl.' 11 ' ~"f"Cro rc.
dcfcnd nnl s, wl,ell
, ,, ~"tl , mu,! co,~ L" r impl,'adi,,!: "
" umt,,:,. of pM!i"", :
( I) 111e OW"".,. impk:l cl . Ille seller for r.cllillg " def""':1 i,'c !'Cailokl. (2) 'llI e own., and [b e scll c'
illlpl c~d
IIIoC nlulwf,to:lurC! fOf m., l;illj;
:, , llf,"CI;I'e pl"l"l
(3) The mnn ufncill rcr idc!l1if1"'l II pllfficular paT! [hal fa ik'! :mil implo:ads 111< mallu n,ctIJ re r of thaI pari . (4) 'n,," I'Mt m :' nu f"c!u!cr cl aim.' he w,~, ..old d~rccl; V" , (lW m~I(· onl"- from " 'hkh h~ <:"OtlMrucl,'
u'"in a nd pm ,i de s;, fc[y CqlliPIllClI\ [0 Ihe plaintifT.
"r
ElIch lh t "-hove ~laim. llIay \Ie viable. d ~pc!"liJl& (I" Ih~ cir~ uon' o.lJ1K"e< oJ !he tld«t. ThllS ..... hat Jlmy "",n ~s ~ ~Irnigb ! rorw"rd for I h~ pJ" illl ifl' ~J Il nm,;hrOOIll j"IO" (on 'pI .. ~ plodUCI~ l i~bilily cas(, " 0' ov"r wh etl, . , Ih e pl a inliff ...·ill rcc(i~<: COIn (l<.'l,;alioll hul 0 ...;(
,'.,!it:
who will p,'y."
E,w y enorl alld \Iral~~Y In m ove lhe ~aw !llol1&'''U~I be c "lpiO)"Cd by III<: pl"inliff. sin ce. s~n Cr;! !ly ~11C~kin s , Ihe o Ilier IY.ln i'"lI will 11 01 hll"C Ihe illCcllli.·c 10 dQ "'. s..1I1~"II,cnl di'\Cn,,~ion~ an: " ftc n prolr:'cl cd by Ihe comple.,h )" of
I he Ir~, I. · A n il;..<.u" "'hk h ill clear 10 Ih" pl" nt iff, an d wh idl shOt, I,! > .I« '~P'" clo. S. ~ t 'n1."';' lI M. n d . " .... "
I .I."I>·g<,...,.,II./· L " n'OIIeek M. I',l
(.\ I,ul1<W Ik",'" • Scr "'p'O
1'",.Jum!' j,,~ lI j'J · . ,, ~. 1$. "r,,,,,",,,;,y"
I ')~ ;) .
,·n. 1.1 . "" .~mi.ol j"t ~ s...IIk'Hco":·
s..., ~'%"fOJII~ , n.,n" t ... jo T.", "", i"" ,- ,·h. ~ I. " S« ,k m,m T....hH..I""'·· (M. I' Ih.....· I ~. 7 )
"
Ik"dcr
I~~)."
It. )om ..., . " "
,,~ •. "'""")., s...~ 'I.""," 1
IM"II" ,,· ",,"" "
1.II.UIlI\ II S ,\:>lll SCAVFOI.llS
~
56.05[3J
be rcso),cd rupidly. bccolll<;'l prol rac(cd nmlmurky ill Ih" se mmbl.: 10 ",.a IlOCate blal"" .
It i!o nOI rcemn mC71l1ed l1ial pl ;lintilf~ a110m er dday procecdin s "'i lh lite ClI"
Adion ,\ncr Seillemelil . ,\dions ~fler '"'ttlen l~nl wi tll the I'lainliff. for ;ndenlll ificat iOIl for amount~ pnid , arc 1.""0:11111 10" .10 alt hough MT:llcg;"·,dly koss :u\'lI nt:IgWu~ (or Ihe p;trt ~
ieekins im!en1l\;r,cat;oll."
"or cMm pk . " Ihird ·",,")· co m l"'l1 ~lIioll i ll~ural\ce
IKln
bo:l1dil~
p.1id 1(> ~n
Ralh er lhall rely 0 11
c,,~ mil)" be l!fo ught b)' Ihe wo rker's c"nlpnn}, to rcc,wer for workcr'~ compcll ~a· employ«."
it ~~par:l\ e
act;"n to recuVcr olonie>; paid in rhe m:lII'" ,·..d l<;l Oil Ih" indcmni(K'aIKln cI:tim. 0 " II1~ IIy ~s. ju rie; It~"e loI."COOO . j,\lIl",'.,oj Ih~ '~ Il1cm CIII, eith e, on liabilit y or d~mngl!"il . With out tht strout. inlerc:"t~'" t.'SIimoll)" of the ;njllrw plailllifT, ~ ju ry m ~ )' COli · el ude III :lt the :lIl1ount or the N::lltcmCII! ""l~ too high and n" ·,, nJ a 1.",'oCt" .'\tIm on the in d. nmi r.catloll d ,lilil. ""Ulem~llI." d.f~~,d.~ 'l1 in 1I ICaffulo.l ta~ !ih"" ld im pL..':ld fnctur~r a. e~rly a, f>O,-,ibl c, 1<1 ell'llT. nsniml ~ 11 ~rral ic
to .1',·" •..~.. T """~l. 1< .... .. MoO«w ttL",""r (" ~ .. I I 7 til. '\N" 2d 3ll, ~! ~ r'-1;.~d ~... fI~l>'Jj. T",".,. "."1"",, d ,im b)' ~ "''''~~''' n "" 00 r.1I frrua a ..>ffold ..·1..... 11>< 1'1>l\t l~~h. T.",~ , ~ ... ""' Bh' iftlk,m1ifltJ' ;.oo h om d,.I. mk , """",,_y whklL "",'pli ,,( 'h' ""ffol
' 0&: J'Ll"k pnn>.J...,I 1»' ''''' ~tl.on' .",,~ ,ke en"" of ,II< acd.I<", ... '" ..,Ilki.." 'n ~'"''' T<.,,,~'. <\, i", fo, in,ktllnir"",,100 II>Mry .., ",I.;, Ji~i!I' )·.
.,0.1...
"S"·~"·r.N""J· L F'~tttcr.~
'I""' l~t ,"1,.,.. lund«
M. fr ied", ,,,,. I'""h"' '' t.I ~bilil!·. ch. I!. '"h,MJtllli.
1?s7~
" A1>.;loo l« ' . R",U" ", 1101, k
Thi, ~ f""'<.
~1
C". J Ig 111 . II.pp. S(,.I . 4~ S .E.2tl 4l S (1943).
'''''''w. '~""Jtp
" ,,1«' I)" , II" " "I,l
r", "'''ol " In", d..".r,<> 11_
s...~ 1:<'0,,,,,1/,' A.
m• ...." k .." """f"""...non 11<,,I"' '''ITI. The I... ~· of lI"ork," , n', C""'\'1<",.I;"". d,. 14.
l'any Ar"on. " IM.n l",,· lin""" t982).
"Th;,~
!
SMII[J]
PROD. LIAIl. 1'I1ACflCE GVIOIi
[cJ-Urcacl! of Warranty." The "a,,.IUII on Illc cil:ldcl" of pri,'ill' was manned in pari by scaffolding <;asel. whi<;h prc,~nted the mo,1 <;ompdling insl~nce, in which a lhird party. not in privily. should nC"crtheles, be permitted 10 rl'<:O\,U from the manufaclurer of a defectil'e s<;affold. J< Traditionally, the pllrchaser was rtXluirod to det~rmin~ whelh~r a scnffold rope wa~ suitable for its purpose, TIlliS. the purchaser wa~ required to delermine whether the rope waS ~uilablc 10 support a scaffold. and the rule of CGl'eW emptor ilpplicd," Irlhe purchaser made il known to the ~cllcr that he uccd(."
10 hold up
Wnrranttc8. Manufacturer>; may allempl as the re,ult of tbu II~C of a seaffold. Howe,'er, when Ih" injured p""on i, not the purclu~,cr, a disclaimer is rlOI \"Ilid a, agai"'1 Ihe injured I"'"on," [d}---Ilisdaimcrs
(If
10 di,clnim liabilily for ilijuri~'S received
"Se" '"pro § 56.01[llIbj,
S,',· at," ~"""ra//y L. r,u"'er.'< M. I',i,d",",,, P"xl'''I; I.iahilily. do. .1. "S"i" Li.bilily,"· ~ .1.01 (M"uh,w lktod" In6) .nd d,. 6. "U,b;lity of R",,,ilcrs "",J ~l;ddl,me,,"
().J,tthow I""od" 1917).
" Set, ".g.• o.:,.]io., Smi,],. 89 ~,Y. 470 (I ~32),
" Ph"", ", S,ooi. I.umbor Co .• (," ~,M. 90. 305 P.1J .\67 (1957). 1hcploi"tifi'w,,",
injIJ,od wi""," ,opc. "hi,b b,d bc.." Hml;ng
d;'m;,~,1
,url""ti,,~ ~
,,·.. i,,~i,,~ ;0;,1101,1. urnko. 111 "f·
of tho conlpi"in'. tho
rool)',
~-hon
'h, bu)-or p;oh 0",'
,",I 'hore i; "0 impl;"',1 ~"",
" C"mnl;n~' v, ~l"'g""·" Ino" N[l, J~·108 (D,S,C, Jon, 10. t917). A \-"die' ~'''' «ndo'«1 ,~"i"" "«
ohair rnr" poilUO<, 0<1 II" ~'n"nd, 'h"l 0]" «,.il<:r "
~
hon the wood
pi,"" thot their jot> '"I'<,,-,,<>r nrd"e<.l ~"'I
,hom. Tho dofo,odan,·lumbor ,,,mF''''Y ;"elud,d" di",I.,imor or h.l bih'r "" i" in· 'oko ror II" pionh. 'n,e ~<w Y~r~ Court of Appc,L, h,ld I)", 'be l"m\>;:' '''''''1'"'')'
,
.'
!.,I. .mUts ,\:oiD SCA}')'OU /S (eJ-l"eJ;li~~IIO;C."
II ;~ lIlll1:ll1y dimcu" to pinpoi m rt)O( of ~ vio l31ion o f /I ' talld ard o . 1I Iksign
lU ring d l;rC~ 1 mal' O\:l;Uf d~ [li(c tile c.\~rci ,;e of duc c:lr~ b)' :,Il I'J r. li c"" This i~ es!,<,c ial1y true in n scaffol ding cas., where Ih e dcfc"C l in th e part tim! rniled UIDY hm'c bC~1I alturgic',,1 IcSLi llG,lO ,
.
disco\'~rabl e
oil ly th roug.11 mel·
The refore, ~ lriCI Ii:lbilil~' llnd ~ta lluory prm o:.;: lio n lll'\: ust",Il)' reli<:d upon by lh t p ~1 1r11;1T, wi th II cllligcn;:c :l1l :l1l{;m"mirI8 r~~lor. I'or insla IICl:.;1 mn)' bt; $11 0"'11 l h:l1:;1 ~":lrrold boo a 11( («,;\'" !I<.'(\)IIdD . " TI,i. i~ ~umcjem In m a hli'>h liabi li.y. If it is :!ohowlI rUrllo~~ lloat Ihe dcf,mdllm r~I "':d to perfoml l l!"~1 r}' periodic rocltl l~l$
b l~kc.
"',"1I
On t h~ MXon.b ry Il~n k.:, lhe jury Rl3Y to " Imim th. do;fcudrull. Sin, i'3rly, if "rio~ failures h ~d oocurred wit h t he sa.... mll3f)· hrake, the jury nl~)' punis h ' he dcfendJn t [<>, n<>, tnkill g cllrr«livc 3CI'O li befm " the ;\~~ i!l.nt . [f}-I'nilutt ' 0 "'" rn," Si nc e , caITollls arc SO d n!\l/.~ rml~. " ml the rCl ullS of m i~tl~C 10 horrible, a m:uwfacturcr i, r.:qui rcd to tuke c.' t r" prccnuI] OU! to be ~ u rc th"1 :my d anger a ssoci,lt.od with Ui;C nf Ihe !'c"IToi d iii comn llulica tcd rIOt onl)' 10 th e put~h:.~cr blU to the uscr :I.~ well. U Fo r i."tlllle;.:. a w:trlling. cOIlHli ncd in ;I 1.'dmic~ 1 m.'I1·
u.al.
"""iIL~l ~l1~chi \\g 3 ~" rCl)' belt 10 a supporJ rod w,~ hdd i"s.i<:-
...." ,,01 eol""""'.n r blr" jff. >ilK. IhO)' ,.;... ~ ctImpl<1c
"" ,ft!:fl" '" .~. C"''' ~.'''''
"hd PC''''' "" • •10" j .. ,'Ii«. ,"
t . S''''~''M,~I/J' L I'N""" A "'. I'ricdm,a. 1'"••,."" t c<', I.i'bit;,y in ~ ._11 ......·," (.\ \.:0"...".. 11«1<4« ('157).
'·S,'··fl>JWf
i.bit;'r. ~h. ~ •·...b"u~"""•.
,~.o t[l[['I[iI.
,.. .1'0" 2 I, K "f'<"',';n &':>1, MI,.. ", A"orn o>",' Gui"" 10 !",~~",cn"
..
,b, j ~, " r ,ii. "" ",,"i}'''' to!' M"~IL11'" ""~
" S''''Kcn",>I~' L1',""",1'< M, Fri,d""",.!,,,,,,,.,,, Li,,"ility. "', l . " M ,,,,,,(;,,lllf. ,r', !.i,bilily in N.~ tlr~" ' •." ~ ~,l! (\!""h.~' tk,,
i .1,O)I"III1I" il (M"uho" · Bo,lde'
19~") ,
"S.". "~,, :lei..... , S)'","",COI1,-.12 t :'ol,W.2d ~(t'o'.l)'
WH~
".... ,."
J
K08{ ) ]
%_95
I'ROIJ. lJAII, PRA(.T](.'l: GUlDt:
qll:ne as ~ mll iler or lnw 10 31'prnc a uS(: r of l11<: <.Iange r of doilis so."
The coun Slal~d that III ~ C!u~"Jtion;~ whether th e warning provided ~deq\lllic "","UI.1nCc Ih.,l the inform.'l iOfl 1I'0uI<./ nctua lly r~:x:h thos.e "'hOfc s:t rc:t r depcnd~ Oil Illli r h~ vin~ il. Th us, any
lir~~a\'inJ;
w:lrnins sh cli id be pl~ec<.l ill a locHli Ofl w ho:r~ nw~y ill so me technic~ 1 n~ ,mml
II Il lcr will ~Cc it, mlher Ihnn lucked in owner', file c:lbinct.
In.:
ASS<.'TIlbly iliMruclio!l ~ m u, l be ekllr an d e.1S)' 10 foll(lw, since mi nor mij,lake, in a~>.mb l ~· c:m h :lv~ d;snstrou ~ r~~\llt • .'· {1ll--Pro,lm: Delu l. Th. ~im pksl m~... hocl of ,,(O\'ing til<: <:xi<;1e!ICC (If ~ m anur.. cturins dcl'cC1 i~ 10 hll"c "';I"C$~ Iesl ifr 110) 1 they s.,w the brokell pan ~nd d~'S\: ribl: What the)' r.aw, This is usually in· ~urr[(: icnt in hsc1rto es lab li sh the preSC llce of ~ d~rCC1, but In some ;n llan re
lind
,,~..:cs.'!o"y.
Stnffold or Purt for Trilli. Pari;..,. nr. often eritto prod uce Ih~ ~lIeB~"CIly dcfcC1i"c pari :>t lrinl. D3malling elv..ing lIl'gu n'enl 'l :ond " 'ot iOlls ror diR"d ni verdicls may [h}-Produ dn~
ici ~.nI
for
r~il urc
Uld,
:. loIiocli ". Up-R~M. In.:., ;0. L4 1006-Ii (N.L iJlId",n C'"''''r ~ . pc""" C",," May !I. 1''11). Q' ••7-""f
I"S in i"o<":qu", , '"hili')' "nd pl"i n,in', foil , A !J,"O.OOO
r", ' h, pi,inliiT, .. j
til
.\1'(1.
3d
1 Q6~.
150 N.£.ld!.l (19}ll-
'·
""." "",,",,,1
"""".,
rou " fronl bilu r.: 10 prod uce lJoe re3l cvidenc~ in Ibe ~':1!.e, II..: ;tltesct....tXti<-.: JI.l rt. It h
~I)'
[i)-ExcludIng Other Possible Cnuses," Once n defec I hn~ been idem i~<..J, II i5 nOI tt<'C<'S:\:I'y for 3 plnimiffto uclu de ul! ol her ~i b1c cau!>eI fOf lite brc:1 k''' g of 3 sc" rrold." The jury ut a~' conclude Ih31 lho: .. lk'S('d Ikf''''1 m or<.: likely I b~n lKlI the C:lU!./: of lite inri· delli . II i~ 1101 " n·cs....~f}" Ihal I,...,. probable r:;IUs.:s I", dirui"~I<~I."
'S
When n 1l13i"Ijrr 11lltm rn~ 10 l.""'tabli~" .. oon'pecilie d.:f\'CI. b)" ill' f,'fling 11m Ih . $("~ffold "'Quit!. nOl h3W O(h"""is<: fnilcd, the p~~inli R' mUll .~cl"dc olh ..... <'/luall)' prolK1blc <::I.u..... ,,( rhe fail ure, A ~ Ion:; a. rhe plnilHirr~!W~bli 5hCl< rhat the fnilurc probab ly oc~lIrmt :\~, result of ~ d~rcci. Ih ~ j)ln;nlifT hn. mel hi ~ burden or proof, Tile fact Ihat rh~ dcfelldm!l CUlt conceive of other poSl'ibk ~;,u."" doc~ tlnl O,'C'COn1 e Ihe pl :LiIl IHr~ proof. [j]-r.~lIcrlS. A p,or=o. who is nil c~pcricll c"d m~chnllic~! ellgineer ;LIl d :lIt ~.I ~" '" the field of metallurgy may t<"!.tif)· " 'illt regard
" T•.um, h .... <, Mo:G, ... I.uft'h
f'J>in,iIr,
~
WI '",... .
'.-0.
,,",«~ kI
.. h;"b "'....m.I
when ~ pbnk u",", .:hi(h h...," . undiog !noJ;. in T"" pbi,n;rr bfOUtl~ "''' . !;OIin" ,b, ".!'Pl .. , t>f ,h. "".rrokLi", Th. COPn affirm'" ~ JI>\I,~,.", Ih" pbln. !ill; boldin& ,I,.t it . ~, nn, """"'.... 'Y KI r rodlOCe the okktti,~ pllnt ,a,,, .... kPo< n, ....... ,I>< d. rM i•• fU rt .."", .... lrtclalt.
"""
0''''''''' ,,(
s..., dho Sroo<' ". l:p ,I< I~".
I"".
~
III. AW'
jJ
10M. 1.W :>1.I!. ld : ) ( I9l!).
··Dc"""''',.......
" S,... K''''''",I/), l . 7 I) ... ",~ .. ;n Tm' A,"fi.:>!ts. cl1, ~l. f.. I""""."' ""1).11"",,,,,11;,'•• ltd JMoO"'""!or)" r;,id,,,« ,,"I FI ""l l'rcp,,""io""" (Matthew Iknl., I ;~ l ), (19~J);
" S<"~,'nm,/I}" 1,. 1',,,",,,& M, [In''cimo,,. !',,,,IL...;, L;"bi lj,),. ,I>,:l, ""M" our.,,,u,. «'< Li'hilil)' i" N.!liF
" SI"'I' ", l1p.Ri8111, ("0 .. J ill. AI'P, ),) l(lO~. 1$0 N .~.l,! 2) (197l1: To,,,,,,,, trIO, ' .. ~loG"'" !."m\>c,
en,
111 III. At'l'· 1d 3l1, l!4 N.F. ,lJ ~i.-I (19M),
"s"., ~,'.,""11,y "'P'~ ~ !6.01 [
....
' ,",
~6- IDO
I' RO O. U"IL I'R,\CfICl: GUlli!::
to a
dcrc~t
in a plO,l usc'tl 10
~ upport ~c~ffoldi ns."
[k J-.·"res«1Jh~ U~ u Satffohl. The M OO of wrn.1 h.:r II prooJ· net WIl.Oinul1dcd for II"'! ~~ scaffoldi " ; is uw~ny ror Ih e jurI'. Ftl r in~t~"c~, " floor d....;: king nmn ufncturcr cI~imed that il did nOi imend, nor could it f(l !.O nably h ~\'c for"'SI:Iln. thaI con, tfllclion wcrkcn " vuW 11\.1: its do:..:kins: for :\<:n1Toklin!;- 11",)' cl.!timcd that Ihe Walk,"' II "! of thc deckins to ~urport thc'm while doioS weldins wo rk in ~
, hnftway wn~ a m;!ltSc. Tb cju ry Ilei d to lhe cOIItrnry, nnd the mann· r'II:lUI ..'t fdt!«I prior 10 lrial on tLlmases. " Th. mn llu f:~clu r~r ~hould WlIrn osnill'! n fOI'
Wh en the plaintiff rai" 10 foUow di ,,'Cliom; for :tsscmblin g a sc:tr· r~lies on his OWn iu dsm cn!, lin d he kn ow~ t!tnt hi~ method of ""'
M;~!!Ibled .'·
the scafl"o ld as
[m}-l>ual
If the plai nliff's employet also d\$igned or mll nur."lClur«ilbe scaffold upon ""hieh Ihe \I"Olkcr " G." . , k
Cflp~d t}·
or
Em plo)·~.
s.m.'. [no, " . ll,,,,,~, I?? &0. 2~ 29 I (FI>, Di.I, CI. A[>p. 1967),
s..... ~I'" ~"J'! I. KUp
K 531",.. ,\I_f. Gu;'1< to ~ -nns..
dL "II. ~ F"'t u .. lI.oul,.io '" M,,"~,uh" and do. lI , ~F"'
" 1l".1L ". It. Il. Ilabert_ C" .. No, 10 Itlll (N. D. Ind, .\bn;:h 19; 6"", ,,,1"'''''' Irr 19 An .... L R<j>. " K' "~I"'" " . (1 974) .
.. !Mo'. ' .,t ..
I
19-10<. (t~J6"
E
O)'m. ~, .. v.
)~
J6l, 306 N,E.ld
6~ (,
0 "..." lS2 1_3 1066, 1000l".W.l d .l46 (1%1 ).
.. 50,01,,, 0'. K>t"",.bOO T.nll!. Silo Cu. 105 Micl<. 3)9. I II N.W.
~2J
(1919).
S,'" alS!' H'P'" d" 1$, "Def,"" •• "d t~"". " ,r.. .. "
" ,' .
, !M8[3]
LAI IJJlW S A'll) SC.uHII.I)S
WlIo; wo rki ng m I h ~ lin1 ~ oflha aed Ucnl , Ihe plailllirrnmy l><: 10 Sn~ hi~ .... lIl'lorcr unlkr Ih~ du;ll cal"'~it)' Uoctrin e."
~ lIIill cu
[1I~E ~~ nlplts of Ucfl.'Cl s. [n une (:.<e, :1 "br~~ k-b;ld, lie," used 10 l'UpflOr! a se~fl<)ld, broke, The m ~nufrlclur~r was held li"bk. ba.~~d ill I"lrl 011 Ih e '"'llliDlOlIY o r ~ mcl:lUUr~!.I ."
The presellcc ofkn[)\ , in a plnn~ , ill violnlioll OfSl;llldMru for [u m.. b<:r IISCII ill !I(;lfrold;lIg, wa, found to be t be c"u~ or n plank breaking." The pr~~l]cc of ,h~ ~J10 1" WII< I'T()\'Cn by ph Ologr~phs. rather Ihan b)' illlro•.lu.::lion of Ih" plank il self, Th~ cln .. ' C1:o0l p CIIU of ~ crot..~ br.u:.; roo.! i\(par~IN from Ihe rod, allowing n !5 ·ye~ r_old ohun illlun
Wh"n a !,J~n1; 1Ipt:IKl.d, cnusillg th e pi:li milT to fall, n violulio n "r Nd,rJskn '~ ScajTold S., rclr Act W"s h~ld w be IIc&lis~ncepcr "-',"
A phlin li lT ,,,,,,,"c, .., 1 judsm~ll1 for R rm~lur~d ~ pit)l; :",1.1 lnjurnl feet :",1.1 :m~b " ,11 <:11 a d cf"":liw ~n"l1 lie. u~d 10 hans ~ ~arrold bracht "1:;1 in );l a ~~re ~,,"eMc w:,U, cau....xi t [>e "'~ rrold 10 Ml fom
floo",-. ,
·Ih. n\"IloCn..oe of cl\!at-\ilc Ik"~ to hold pl:tnl:inll in place wa.. held 10 comlillit e u defect , ari d ~n award to u worker, ..... ho hau been i1\ju FLxi whcn t h" bo:I rds slipp..-d and ht: MI l"rouSh Ihe c.nt~r or the sCr!rr"ld, was "ffiI1!1C(!.'1
.. s,.... ".g.. j)ou~I." \', E. ,,>
"
nonn.
G,,,,~ &
5,"", I,"" ", U,c.:'. I'>9 ~, ld 2ql
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~ . ~ kGr <w I.~ ",t;.., f
m.•. !)i". Ct. At'fl. 1%7).
C,'" t 17 1If. "1'1" Id
l ~1. !~ 4
N.I:. ld
t.'p.Rirll<, In ,., .1 lit. ,\ rr . .\d IO,;~, Iro l\' ,E,N :~ (1 972),
•• I"', r ". Soli.." ... 16. f','
5 S~
I'j.lOll, I./,\U, l'IIAcne\-: (:\jlllJ!
,..n.,
A !\C Llk.~lI'm l '""c hed fm ~ ~1 ~in1i lf ki ll~lI "'1,,:11 he fell fro m II con~lruction sc"ffold, ~Ilesedly a~ n res ult of a ll eye brnc k~l ,..hich
broke."' A ~749.000 Sc:Iticmcol1 ,,'ilS rn,ched in Th" rou nl! ...."Oi.:k of I ri~1 011 bl:h alf o./"Ih c f~mily of a deceMcd worker wh o rel15 4 nOOf~ a fter the [lOwered r.cnffold for all [)ffice buildi ns col1:1pscd. Th~ ev idence 5110 "'00 Ihat IIIe defendanl "C\.~.... k .\!ed ir.; c"quillUlCf\t un ~~ r a~lU;tl U!\C oondiliM, 10 determine how il~ roTubiliTy "'3~ affec ted by weight. wind \"cl<xlty, and other facton."
A SI,600,OOO.cuknm ll for the Il'mngfu ! d~nlh of .. wi ndow c\C(lno:r " 'il5 ~:tch,..d ill an action c1.1im jll& a dd'~"CI ill :t po".~'To:d plat forlll." i'l:oi,nlff dai m~1II h.1t the pinion ~II Jn fo r lite 1II0lo r fmc· l urc~, cnu,inll lhc pri mu,), brake to r'liI, :lnd lh ut the ~ccondilry brake ,,'IIS dcf~"CI ;"e, ""CaUl<) il rniku 10 hal t the d O$C~nt of Ihe i~ .. f1·old. I'~,illliff disco"em! anOl ller si mibr ~ccidclll, ",lIkl! oc.;uroo prior Ih e windO", ck.":mcr·s d~-:ll h. \I~L\ i'1>"oh ·et! ~ !oI." ';ou, " UU f )", 11M: manufact urer da ;nll'd in tllrn lh ~t the ~haf\ "'~ malluf~c\urcd from der,,": lh'c r~w nmtcri~!s, pro"id ..", by a secon d d. fcmlnllt. ~ 1\d th(ll the pbin/iff was conTributorily n.."lig~'ll for f:kilurc 10 \10'",,, a safety 11<11,
10
Ii 56.09
Rwk~
G(wernlng
Scarrolll~
!>__ ....... , .... . ",Ir ' . ...~rI'_ h... ""'n 0<1 ,."h ..,. , .... " '"
IOSII ,\). OS ll A r<""I~llo ", ~",,,"," " I .. ltI<,,.no! ..."ffolo1.< or, •• ~." i:orl:d)' ( m .......
" NSI .",,1I:I<4S.
_ ilk>
l10e A ~l ,\"" .... J . I0:Il .. ~ r<>l4, _ r k ...... _ Iy " .... I .... ""'r~ • ""rr... , ~ d ",roly f,. ", tho
..,..,t . .
m",,''''''
f.."., .... 'ro,"
'"l'I"''' •• ""'....
" ... h.,d p,OI«t!oo .
.. C.,."u;" ~. I'. t..u 1)0.'.. 0<.1. I,
l G7l>~
ScJffitldill,!! Coo. C, •. 1'" 1~·~ 1 (\j. S_O. ~ .C .. 0 .. ' ..... "" U' "f'D'kd;f< 20 AT I.A I.. 11<1' 1 10·1 13. ( I"''''',
.. Dd.',"' ,'. SpiLl" SI.;;" _ Cc. . ~o_ Sll\~1~ (KX s,'r. C1. . Kin!" C,, "",)', ",,"'.. 19n), a.' 1."1"""-.1 iI. n AT LA L. ((, " ~ 22·R6 (1')1'1).
n.
.. IlLla ' . 1010 IlIood ~·~)". So. n li'JllIl (N. Y. SuI' CI" K '". eo..~ ,~ S ..... 19. 1).
"... ,,,,
..
i.AII1lI':IIS ANII SCM'row s
j~_ I OJ
~1~lIId~fll$ I h~1
The
apply 10 SI:,,/Toldins
(tl-Oec upat lonal Sarety
~lId
Health
t:a!.Clt
a rc:
Adminl~Ir.llion
(OSHAl.'
T he OSUA R"lIubliolls for Ladd~'tS a"d Scaffolds' are ml:.cn b rSd)' (,mil Ihe ANS[ j\land~nb . A, in [he ANSI ~Imldards, tile ""ri(\\I~ Iype; or t.c:~n'old.~ receive !'CJmmlc Ir,"~1 melli, Wilh:1!l umbe r of g4~I(T'
011 rrincipks applying 10 1111 sca(fol..k The fol1ol";"& crcd by OS HA:
'u~:~~
arc WI",
R~'qpir"II1~"t...·
(I)
Gcncr:tl
(2)
Wood ['01" Sca!fCllds. '
(3)
Tube ,md Coupl.,r Scnffold..'
(.\)
Tubular Welded fm me Scafl'ohl .. '
(~)
Manually
(6)
I!b'minS and Rlll"li,,& Work
(7)
Olllri~cr
J'ropcl l ~'ll
.\{(lbU. ScalTold..,' Plal ronu~'
Scnffolds.'
(8) Mao;ons' AdjllSlablt: Muhi plc .• 'oim SU!opiI" , ion s.:"rrolds.
(9) Tw,,·I'oinl Suspensi on (Swi ligin Sl SI U1IC!l<'tl e.~·
(10)
,0
ScafliJ ld ~. "
Adjustable Mllhiple-Po i"l SUIlpc!l$iOll Sc-:lf-
lords." 1 Sa- R_ II..g.,n l< M_II"""". 0«"1",;"",,1 s..r"')· ", "I I~,nk " c<,
~ 19 ~6. m(.) {I ~ t7~
'!J.t '.
I q26.4~l(~)(1 % 7J.
\ Id. ~ 19~6.Hl(.) (19 1H). • frl.
J
l?:!bA51(~) (19~7) .
'/d.
t
I 9!M~ I( o) (l 9a7J .
• M.
~ 192 ' , ;'I( I') ( I ~8 1 ).
' '''.~ l~lM5t(~)(1~8 7~
'. ,d. II
M.
"Id
~
19! M} l th) (l'IJn
~ 1')2oAjll , )(l9~7).
J
1~21>..j$ I(j)(!'Mn
' " • - _ . _ , -<-
I 56,l)9{lJ
I'RO]}, LlAU. J'R,\CTlCE Gumt:
(I I)
Single-J'o int A djusl~bJc Sllsp<.:l1~ion Se~fl"o ld! . u
(12)
Bo.ll",·"in -s CI, ~ ill!, "
(13) C:trpc"icrs- n racket s.:"rrold•. "
(1 4)
8.ickby~..,;- S'I\f ~.e
(l5)
Ho rse s....fToldll,u
( IG)
Kcrolc llc.1n1 Sc.1fToloJs.' •
( 17)
1'1~~I ~1"t:rS' ,
(I S)
Imerior Hung Sca rlQlds.'·
(1 9)
Wi nd o\\' Jack ScuflQl d,."
(20)
RoofinG
Soffold s, '·
Dccor,lI or"_
~I\d
u.rg£ Area Sc:ofl"o!ds.'·
Il r,lCkcl~.n
(21) Cra,,-lill G Ikr.uds
Of
Chicken l.aOd eMl."
Sc~ fTolds}'
(22 )
rloal or Slti"
(23)
Form ScaflO lds."
(24)
Pump h ek S<,,,rrol d.... ll
Th<-'!.. follow th e -"nn ~ forillat as I h~ ANS I ~ r,,,,d nrd.~ ,..,1 fo rrh
in/m_ Uld.
~ 1~~"'~' I ( U (i~87J .
,. f<J. § 1926.4'1(1) 11%7}. II /rI. i 11)!6,4S l(nI) ( In 7).
'· IJ.J
19l",.mel (I~8n
" /d. § 19l/c4, Ho) (l9 ~7 ~ '"/
~
19!(),4S I(p) (I og1),
' ~ /J. ~ 1 ~16." H~I (1~ 8 7 ) .
" f<J. §
1 91.M ' I (r) CI 9 _~n
"I". J 1 9!~"1( t ) (In)). " IJ. § 192b.4S1(u)OQH1}. " M .. 1
~
l?2o.4S1 (vj{I9S7j .
~
t9 Y,,' ~ 1 (.- J 1 1 ~ n J.
" IJ. § t91./c' , lh Hl 9i7t u hi. ~ 1~ 26_' S t ()' )(J9~ 7 j . , '~
" ,!
1.A[)llIlIIS II:-m SCAFrOl .llS
[2} Aln crirnn :\alloaal Slandards fnlftutc (ANSI)
..
[nJ-Hlstor)·. The Amcri c~l\ Kationnl S!andl'rd S~f~ ty Code for Buildins Com;lruclio" . ANS I A 10.2-1'.1+1. i niliatl~· c(lm~ i"ru Ih.: 'W""'3rt! ~rO" i'liom ronccrning Sfo/Tc ld!o. In th.: r:ln )' r95Ch, il was recomm ended that the Code r(lr Bu ilding Co nlotrucli(ln be divi ded :It\d i"Ycd a~ ~pnr:tl~ sandnrd •. A subcommittee of the A 10 Com_ ",itt~~ 011 fJuildi" il C<mstruction was formo.-d to cr"" le :I . 13udnrd for scnnOiding. II ";'IS nol IInl il 1969. though. l Sl.: f!.~ratc ~'~ U· dnrd for ~c~/Toldin!l- wns npprm·cd." That vCl1!ion was rC"ir.cd. trent· lng the c"rrem ..:mdn rd. ANSI AlO.8- 1977. wllich W:lS appro\'cd on SepI~lI1""r 22. 1977.
'"l'
[b)-U~c. Scarrold~
be performed
~ilfcly
may b<: 11 5~..J 0111)' where .he wor k c:\1\11(I1 from the g.ro und or from 'olid cOns tructi on,'"
[cl-Lolld RlIllngs. The ~I:md:ml I'mlides for hn"~·-dIlIY. " m,..ti"m_du ly. - :l nd lisht-duty" sc~/ToWinl' He'lV~··<J\lty "",,/Totdins j. d ~'Si~nc'(lto ~:lrr~' n workin g lond of 75 lb./fl.·. Heavr ..:l utr $C'3fToid itiS is ured, for u~m pl~. itl ~ I O,"' nmMllI· r }' wot~ . wh....e nl"t.:rin t will II<: ~( OfW on the: pblfonn. M~dill rn·d llty
!;CnlToldi ng i.. d.::.igncd
carry a working lond nr SO Ib./f!.l. ~lcdiunl_duly >c~rroltJing i~ u.ctJ. ror exam ple. ill bri ck· laying 01' pL.... leri ng. ill which malerial,,:lt\: ~epl OIl (b~ ",,,froid. 1(1
Light-du ty !oCnfTolding is d~'!i iSllcd 10 ",. rry " wotkill S 100.d of 25 Ih./ft.'. Thi~ i~ m;cd.o hold wo r~me" onl~·. wilh nO materi~ls ",o"tJ on the X'affokJ ot!t.:r I""n tool>. (dJ--Fll
'.
portalll. The ~tn"d urd r«luir05 foo l ins whiCh is ""'lind . rigid nnd "ap.ablc o f tnrryin~ t h~ maximum ill1,"ld,-d land ",i[ho\1l ~"tllillg or dispbct"Ielll."" " ANSI A I O.~· t9 6? "A~SI,\IIH_t')H !
,. III.
t
~ It>cli .,; tio", ~ .
" lel " Id.
" IJ. § l.!.
J.1.
16-106 C~iNg ct)l1~r~t~ b!oc~~,
OOxes., 1005<1 brich, b;mcls, or
~in,ilar
ob-
ject. 10 'lIppon " >c
off.
There ",.." ~O ll1e excerljon~. A ,caffold ;n.,idc 3 building doc~ not Il;l'"c 10 h,,~c SUJrdraiJ~, if the ocllffold cevers the cntire noc r of a room amilloo.-s nOJ hH CMY o(lCn ~ides.. It I;iIlII,Olloave any openinp ~uch a. hei~I ""a}· .. eI~'~lor ~ hn s, Dr stair ...."ClI ~. I. For n" ..~!1c lIca m,. noats. oonIS"'aiN's ch~irs. carell my (suspen d,'
nrc urea " below the :scaffold w)lcr~ ['Caple a~ required 10 ..... or~ . the ~':Iff" fd nlUSt h~ve a sc ,,,,,,, be' ..... .:;:n lho: ,,,,,bo:u d and t l'~ lIuardraii. l1~ins " 0. 19 gauge U.S. St.mtli!rd Wire. K·in. mesh, or Ihe equh·al,-nt." TIll" pre"c!l1~ 111:1lcr;ul from railing "ff Ih. """f_ fold onto jlI:l]IO lT> below.
(fJ-.-Snru)· 1'''':IOr. Se:l.ffeld~ and thei r cob'fIOnenlS arc lI:quired I' I
" Id
J
I ' 1<1.. ~
l .J..
:uc n
.. hi.
"/d. i l ..1{ll. " IlL ~ l .lI.
.
,
".~
16-101 10 hold;\t Je~~t rOOf times t h~ m:lli nlUIll illlcnd~'(\ 1 1X,~.1> All rop.i u~cd for i u , petl~i olll~ rcqui~d to hold 3t 1~:I$t ~i.lti mcj the imcn d.
(h,rOJ)Cl1ing$ In Platform, 1'0 op<." ins. more th:", onc in ch i. )lCrrnil1 ell bctw<:<:n adjacent pl anks or be lWee n
vWed. and Ihe l:Kklt r mUSl bt: rCIMa ineo,l from
mfl\~.1t1. "
[j}-MoI'ement. All plan ks mU,1 be ~c~u rcd from mo\,cJI1cm:' as Iml Sl all pia{fom', :\IId l:iddcrs leudinll to the plntforms." Thc poles. lc~ or uprigh ts of lIC:ln"oldl. mw,1 bt: plumb and rigidly br~co:d to prc" cnl any oWlt)'l ng ~"d dispbt'C"'cnl.'4 To " ",,'em tippi nS. s uys or ollicr m can ~ !!I U!{ be u ~~d to re, trllin ;my ffl:':.~ landjng !.C'~ffold lOw~r with a h~j"' l or mote lhml fom ti"":5 the kIlgt" of its b."\Se."
[k,rAttochm NlI to Pcnn3n~n t Str UClu res. Sc,fT(lld, m "~t be ~curc:d 10 perm nllCIl! $lrUC1Utc~. The ~talld~rd states Ibn t ~Ulchor bolts.. rc .·cul (j,m'o) bolt!.. or cquivalom\ m.:lI tIS lil ly be 11'1<.11 to do w.. It sll'.'cilicallr I'rohibits ~ or ...i ndow c":a nds ~ ncllor boilS to secU IC the K"nffold 10 lhe ~tru~tll rc. " "fd. ~
3.4.
J.n
• ~ 1.1.
t
'1 Id.
I U (I ~ oo Ib./;".' "''''"''"'110" ~r'~c 1,,,,1><,).
"Iri. I ). g (1. ", pI.""I", .·oh n,.';,,,,m pomu.>ib!c '1',0> Cor ~ ;n. ~ 10 itI. (DOmiIl>l)"" 2 m. ~ ? IQ. ' ''''''p I pIo. •• , '" IOf•. ((II" ,,""'i'll IooiI oC ~ lb.i11. ' : 2 ia . x 8 1R. a ,.-orI
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J' RACrllT. (OUlUVo
To "rcvcm I i,,"; I1;. J; lI)'~ or 01 her !ll~~JlI mu>! be u>ed 10 r~""Sl.r~iu :m y rrcC-<;I~ I"ling sc:llTllI<.II O"·~fS ,..ilh ~ hciglIHO' b,"l'!(l 1":11;0 o r mot" than fo ur to one." lI}-O "~rhmd 1" OlCdio • • In COII>I rudiOl' , ic ,-:; ~n<.I olher
"'otk
iilll iLli'~ls., prOl~"C!iol1
from IO<\ I~, m" l~ri~ r., or ,kbris (:.Iling fmm abov~ is C'i~cn tiu l. Th ~ stand ard requ irLojj Ilmt ov~rhend protection be: l'fU\·w..-d to ",ortCf~ expI.lscd 10 o~crhcnd h:v:>nh." [~t}--O.·trlall\1ln~ I'lank~.
All pbuks or pilrfotlH' itt a continn.
run hn\'e 10 eit her btl SL"1:llrL-d from mo>'c!tle1l1 or <"'~ rlapp<:d a 1II;11;1II"m of 12 indl\.'S." U" IL'S:i they :11.,; rc:slmi" ro:l' both I:IIlII. Ihe)' nlLl~1 t~M,d o,'cr their e"d Slll'porl ~ at re"sl six in ches, bul 1\01 0\"
mm e th"u )8 ;nche'S.II
fu}-WuTk Comdillons on SrnfY"old. Worht$ a rc not l"-"mI illL"d 10 .... ork all SC;tffold~ duri ng . Iorms or high \1'illtiS," ifl hc scnffold i.l; L'(lver
"Ct:uoII"l-iI<-d 011 the [<>}-I'rOlcetiou
So.'~lToId.n
or Senffold Ilrum Oom'l~e. The senffold n1Ll ~L
be PfOlc.:'~-d frou, . " b$tallCC>. which can "'ClIkcn or d ~,,,uge il. A~Id:l aml ~orrmi \'~ ~ubsl~I\L"'''' In"Y \"lI USI: d"lIlage. wil hOlJl beinS Imtic...... and lhcrcror~ the)' clln be LLSCti with scu ffold. Dilly if II," scaffo ld n"lIufaeiorcr :IUt1l 0" 7<'S and :lW ro ....'$ su ch u>-e."
"ikr or ~)· "t hcli c rOpe!; mnM Ix: Uenlo:d or Jl nllt"C I<.... if wort ",ill b.: df"'" inl'Qlv;ng corro, ;I'c snbo;.t anc~'1I or chcmi cals."
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;IfPIT '" oil .... 1101<1.. II.......... ,Io«e • •• 10 ' I'll<' .1 oc:dMol> ...... .
n«l . Md~, In'C "'" 001""" N .... NII""",11Ol: '"'''',1>.111''' ..... ~ •• ,IWI •••«1",". ,.. ..« ..1•• ..,cl '" r.... th. A " "'''rd 110<
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...l>I l. I.",,<• • ,•• .1, OJld .<"~rr.hll fQIOOC in ..:riou. dto>iI(n.> bu, t."""· ,ulll ...
... po .... o,oc.oted..... 110< piOi'
r...... ~. bo . '.'~1.4 .•" ... ~(~ "'"i."ololly. 0' ........ II",,,, __ 'I,-d .I "",I .~ .. ork ,I,lfo ... ' .... o""lIO
Th~rc :Ire \'"ri ou ~ Iypes of s~n1To ld ~. The ANSI siandard u!tcmpt~ 10 PI\.'S( ';be "'p:mH~ rule~ for <'.:Ich Iype. 0111)' ,hose ocaITo ki typo.'S ru,med in t lie ~t:",d:l.ld llU)' be us.:d ,' a llhoush Ihe -cnfo ran c. ;"', tllo'; t)·" In ay Gr~"1 In e~cept ion rnr new dC"c!Ol'mcnl~ wbi ch pm.. vide eq uivalenl pro tection,' or when pracli cal difficullics or unnc'C~'S· SlIr}" Illtrd,hi!" rc~u!t and C'IUi":l lcnl proleCtiOn Cnn be p rovided ",ilOOU I adhering 10 Ihe ti,cra l rcquircmcnl ~ Ihe st;mdMd. ' The I)'(":!' of s.;;,fr(lld~ spocifi t:\l in the "an ~~rd nTe;
or
(I)
Wood Pole ScafTolds.'
(2)
Tube an~ Coupler .s..:~fTollh,'
0)
Fabrie~ l«1
(4)
Manually·Propelled Mobile Sc"nbld~.'
Thbubr
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(5)
OUlrigll~r SC~lrrokl.~ .'
(6)
~1a",,1IS' ;\djuSl:lbl~
(7)
Tw[')·I',HII1 Sm[lC,,~iorl S~nITohJ~ (Swi nging ScnITol
(8)
Slone Sc:1I~rs' AcljU~lablc Muhiplc· I'oi ni SU~I\~iol1 St;;,(folds. "
(9)
Siur:lc·l'oim
AdjlJ ~lnblc SU~ [lI!rl ~io"
(10)
Il<>al~wai ,,'s
Chairs,1I
(I I)
C:(!rp"m ~I'l" Ilr"C~~1 S";lITold_~. "
( I:!)
Urit"klar crs'
(13)
i[()r"Se Scnn"o lds. "
(1 -1)
>I~.'~dk
( 15)
Interior IIulig &nil'okJ,.'"
(16)
I ~,ddcr
(17)
Wj,,
J ~ck
SC:llTuld .•.'"
(18)
Flmll or Ship
&rurQ I<J ~. "
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Mulliplc·I'oinl
SqU3TC Sc"lTol~, '~
Hc;om '&alTold ... "
Jilek
Sc" ,rold!'. '~
SIlSI\l'l~iou
Sc;lITolclr.."
SCan"olcl... •
LA I)DEI!S ,,:-':1)
16- ttt
(l9)
CmCllaff Sl:Jffold !."
(20)
Pump ) ;<,k ScaffoJob!'
SCA~l'Ol.llS
TIIC general pro>ision. "1'1 forth ~lIpm § $6.09
j 56..1Q1tJ
~pply
10 all K;,r-
fold~ .
To go fllnlier. it is neCCS>!lrr ror the e~p~n 10 detcml il1( rhe lype of 0.<:,,0'0)(.1 iH I'ol\"<~L E~c)1 IHI<: <'If ~catTold ha. u nique r\ll(~ con~erni"t: pcr mill6ihlc U'C'I, d '"IIi~n. c....-clio!!. n1 alm~l !>, p116eh l1l~m 10 MruclUre, ele. 11,C'W prori~U"'~ pro"ide ~tkI; liol1:l1 prota:tioll. be· )"0 ..... Itmt ~ffonkd b}
plkat ioll!i. ( Il-l'nl\'cr~d I'J~t(l}rms fur EX lerlor nundrn~ Muintenan ce. A M.,,()an'tc sw,l(j llrd i. ~(kJrC!lscd 10 Ihe ul<: of 1'O"'cf~d p)~ lform~ (or ~.' t<'TiOf buildin\: maimenaru,-.;!· ~ lIhol!S h sw; h " pial form ili a ~J(' f()kJ f()r lopl purposes. The ''<j uipf1l<'11t co\..,rw br t hi~ M~nda(d j" u<;a! prirtlarily ill wi udow Ck~lli llg, m~1al I'Ol i~hing. crtulki ns. a nd I!-c ncrul ~.~terior bu ilding 11l:o illl~n n llcc and rcpai r ~.
101'''1 m<>
~
wind~
wire rope nround the drum
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to m~ l h~ p~Morm , or un ..... ind s Ute ..... ire fC\l'e to lo .....er The pb lfu nn, If tbe mOIO, [(li ]r., ;1 ..... ill nOl bold tb e druOl ill place. and tb e ..... ei~ht oflllC pl:nfoml will CauSe the drum to turn. allowing tbe wire to unwill d. A~ Ih e platfonn SlarlS tll fall, a ~ccoml:iry hwke llI.;cliu·
'''pII
nism iI; dcsiS'h:d 10 be aU lomat ical1)' 3Cli" ;1l ~d by the incrc:ls.t:d 111m· ins: Sjl<....'<.1 o r Ihe drum. Whcn Ihe M'C'ont111)' brake engages, il ii ill' 1~'11"'--d to lock II\(: d m m, 1'f"C\'C1uing Ill<: "i !'<.' lOpe from 1ll1will diullo (IllY
further.
ll1e1c m~)' IX om: wire rope for C:l~h ~id.;, ...·h~ h ~ad. rnbo: and lower th e pl~l(o rm . There n"~y b: IWO rOJ!<':< for ..... eh side, :111 of which rai:\e or lo\\w Ill<: pbl for",. Th~rc llM)' IX O1lc on eaeh sid<: for lowering Ih. plalfllTm ami o ne for r:lising il on ""eh . ilk. Elich !.ide hll.~ Olle mOlor 10 rai se and Inll'cr Ihe wire rope for Ih,11 side. T he 111010r is Itlmet! b}' i' number of scars ami shfl •. If th~ Sr:.:mI .hc~r. or oll<: of the ~h.,fl' " .."k, ", hlch Ihc)' can d,~ there wUl
The d rUlIl ....iII !prn r'OIIi II'e " 'eighT oft loe I'b irorAI, eau. i"s Ihe plalfon" 10 (;,11. no. II", ~iok "; 110 Till: :lrr«I~-d mOIOT, Tl>c Side " 'here ,".we is All bro· ken p:l11 ",ill Iiny in place.
be nmhing holding the dru m in
ft
Mopp.llll~iri~l.
As the phn form falls, it re.1Ch ~" 'i P<'cd whic h ~utomaticany IriS' ger. 3!\ cllwrll~ lI~y or ",~'Cond"ry " brnke, T he loat! generalcd h)' Ih e de~cc!\di n s pbl form may b~ sum cient 10 soullc the rIlClid di
fails. III oll e i !lsl ~t\t." on ~uch ~ SC':lfTo ld OIl the 55th floor of~ bui lding. Ihe first ", jlldo'" wa,h er was cat3pllit ed ofT the ~caffolt! 1O hi s deo lh "'hen thc ~cafTold', right sid~ t! rofll'cd, while he ",a, ~tandill S on the left side." The ~" rrold'~ socont!arr l>rnk c f"il~t!, and tbe Ican'old ~\lf· feret! :' rurt]><:T rn:" ran all the ,lfT,-';IW ;.ide, TC1iu liing in th e I':cond window w;l!'hcT d nnsii ng from rhe bot!
cued." ,. Ikll. , ~. HO 11,,,.... ,,)-, No. 8 8""~ H!'I , \' , ~ r. l'I .. N.Y. eo,,"l), No., 1'>117).
"Thi' ~1"1."fl'. <_ w.... >
" no; rt,j",I !T, ~"' ,,"., ,,!tIro {o, 51 ",ilh "". ", ~,
""
I.ADDERS M'll SCM1'Ol.llS
56-1 \3
~
56.10(1]
The failure was a broken pinion shaft in the motor. The scan'old mmlllfacturer had designed the ~hnft and had forged it from raw steel. The manufncllIrer claimed that the st,:d wM dd.Clive and im· plc~dcd the raw material supplier. Ullimntcly. the owner. mainwin. er. manufacturer. en'" nmtcrial manufact ur~r, and plnintiffs employer werc all defcndnllls ofonc ~orl or anolher, [a}-Appllcnhilit~, or Stondllrd to E~i5Iinlll'lnlforms. The slan_ dard applies only to powcr~"C! plmfonns inMallcd aftcr March 2, 1970. the approval dute oflhe stnndard, It docs 110t apply to powered platform. installed prior to the adoption of the standard. althollsh local law may make the stundllrrl applicable to prior imtnllati011S."
[b}-Two Types or Powered PlatForm,. There arc t\\'o ba,ic tyJlCs. Type F and TyJlC T. Pan II of the standard appli~~ to TyJlC F powered platforms, Part III applies to Tyl'" T." A T)'I'" F po\\'cfc"<1 plntForm i5 sU'pended by al len't fOllr wire
rope'. nnd dcs;guc'd so that failure of any On. wire rope willllOl "IbSI:lntiall), niter the normnl position of the working platform." A TyJlC T powerod platForm is sU'JlCnded by ut Iea~t two wire
ropes, mid failure of one of the wire ropes may IIps~t tIle normal pos;· tion of the plntform, Worker.; on TyJlC T poII'~rc..J plalform. art required to wear safety bcHs tbat are aU:lched 10 eilher the platform or the building structure." [e}-Type of Drl,m and I'owcr. Thi, stand:lrd :Ipplks only to powercd p1atform~ hnvins lI'inding-drum-type ho;,t,. although other tyl"'s of drums" may be pcrmittc"<1 by local autlmriti.;. If the)' urc permitted by local authorities, powered platform, wilh ~uch drums ~rc governed by th~ sl~ndard." It lIpplic' only to electrically powered platforms." " ,\NSr,\tZO,t.19JO~
"ld.§
3.1.
J.l,t,
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" Al-lSt A120, 1-1970 ~ .1,",2,".
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t
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I'IWII. U,\IL I'II.\(.,. .CI:
G U III~;
16- I H
Id~Tr(l<)
F I'owered I'lotforms. TIle ma!~rin ls us~d to con " ruc t suc h plalform~ nlllS' c\lnlply will< !oIn!lli:ord~ for .'~d :md ;Ilu· minu m. 3l rel="nofollow"> .he c~se may boI.»'
[e}-RcqllirCmelits (If Stnndnrd Not Exciu ll·a. The $ta!\d~rd ~ lnt~'S Ih:Jl the 'I ~isner !IiOl,]d incorporate ;'Il}' fC3lu r~'S pos.~ibJc 10 minimilc hnz;ords :lnd p l(wldc rc;.sonable :":lfe' Y. rC!:iltd less of whet her II." fC;tlure i. call ttl fur by lI< e wmdnrd." [f}-l'rccnutlnn Agains t Adl"tr.>C CJim~tc. M"n~' 1H~'cri;LI~ ar~
aITc"....d by 00111 we:Ll hcr or h)' wl'3.t hn d.3lLs,t$. ~bn llfao.'ur"R muS! tak" thi . inm C
Ih }-Co.t~ct With IhJ1di"l:. TIle I"'" 'crcd I'lnlform i, ~upposcd 10 bc in cO lllim.,.,u, conla,,1 with Ihe building or Slruclure." Thi~ nbsorb<. ""iud forc~'S 'mrl h ()ti~_onlal rno'·COlen ' . An>" bUildi"~ hi~er than I 30 f~1 n,u.;t h:t\·c T rails, in ~"'l ed mul· lions, or o'luil'"km Guides, built int o lI<e f;lce "r the building.
The ",·",kin& 1,1;liform " "I:
"hi
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\1.2.
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"ld.j I ~.S .1.
§ 56..10(1J
If I h~ build ing d00; nO( h~,"11 buildi ng ~ u id~'S, sudl i~~ T mils or nlulli on!. lhc pkllrOlm 111I1.t h :,v~ rollc", dl:'!lir,nc'O uud r.. instc"d of 30." [i]_ Roof Cnr. To nlO"C
th~
working platform from one ,ide
of rhe bai kling 10 mlOlhcr, a roof C3. is 1I."<~ry"· The " 'or kinS
plalr"""1 is itlipCndoo from 'h e roof car. '. "
The roof car camlOI go [asler tha n so feet [l<:1 millut~" mid m\l~t n>ecl lhc HPJl lio:~bk tl (;>ign crilCT;n for pl;i lfOl ms.'· Crit~ria for m o,'C· ml'tl' 'md (IO>oi,ion ing of the roof car ale :lC1 forth! ' There n1l1~1 be int erloc ks 10 IbD t the roof eM will not operate 1111' ks. th e workin g p);"form ;.; in i t ~ " up " positi on and 1t01 in C'On1~CI wil l! the face of Ihc bllildi,,&o lind a ll plol« ,I\,c dC\"iccs a nd il.lel locks :ot. in <;'Orr",,! po!Ijlion .... Th e roof e:lr mU ; 1 be determ ined 10 Ix: ab le to wilit!IUlid 12~ per· C( 1lI of il~ Tlll.':
",,"d 10;111.118." [j]-Tnmperil'lI. A pro"ision In prc" cnl the l'ubli~ from tnm p<:rillg with th e roof ,..a f II1U~t Ix: 1!l
off dlC roof "rca to Ih.: public. U · 11.i~ IlIle is lI$Crnl ",he.. dClenni" i,.s wlk!lh~r the roof enr ~nd aSMl<.~ aa-d ,oq uipm elu Me in the ~~rn., C'omli· !jotl as whell nmnufuctu rcd. 11I]- I.
i
Rml .~
Ead. wor\:'ng Vlmfonn mUM IlOSl " " oncot·
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1'N01l. ll.\ll. 1'11,\(."(1(."1:
(;U IIJ~:
ro.li .·" pl il1 ~ itl II con ~pl~"ou~ jXlIoil ion Il:u ing ll~ nHl~i mllm po.:rmll.~i· ble r:,.~-d IlXId."
[1}-Snfe IY Bc1t~ and Lifo !.illes. Safe lY ""11 ~ ure 1101 necc~'''r)' wb~" uiling ~ Type F 1lO",·cr..>d pl:ufo ml."'usl.-:ld. a Type: F ro"·~"fet.l pblr()rm mu, ' ha~.., (our wirt: ropes ~nd be do:si&n ed Ml ,11:11 if one wit, rope f;, i l~. lhe pb lfornJ will ''''! f;,I1. Since Ihe plnlfo rrn will mit rn"" ~ .i!:"irIC"". ly if II", wire rope l>rc,, ~ s. the $t~ ..<.brd d o.s lI()t ,~. qllire IIIi: "" orkro; 10 "'car,, s" fCly bell on the pl ~. rom,. Sl 31e Ia .. ~ "",)' ! uPfll ~ n) clll the ANS I ' Inrt dard nn!.! requ ire Its. of ;, S~f.ly lId t 011 ;or,y scaflil ld.
(mJ--<; u3rdt:.lils. Tn " SlInrdraii wl l:li Me SI", elured !D provide the worker " 'i, h th e " hility III rcuch t he ....·all ;rn d do hi ~ ... ork . whil e be ing. ~ rol"'; 'l-d 011 hi., sides :tnd behind hi m. On Ihe "'or~ins si!.!e of lit.. pb tforrn . SU3rt!r:lil!; ' h~t an: at k "-" 36 i'ICh", high. m el nOl Ill ort: lhan "2 in ches hilt!!, mu ~t be pruvid ed. " O n the "at a nd >i de or Ihe p ~otrflrm. ,he !l""rdmils m os. he:11 I"", . 42 i"ch~ hiGh. ,\ midd l ~ I)' imcrm edialC rai lins m" ~ be rl:I~~..J betwc~n Inc lOp rai l ~,\d Ihc btl!1 mn tnc\xmrd" 10 prcvcm lhe worker fro m raili ng ill b.:1 ,,"~"lI " l lot
railing.....
l h ~ pblfo rm, a m ~l rlll ic me5h IllU.l bt; ~I"'Ce'i lx:IW~"" ' lho: ", i dd l~ l:"ardraiJ ~nd Ihe lo,,:bo;,rd.
0 " t he wnrki ng sick or
pi a(.· .-d in 1m: 0 " . ht OIhCT s id...,. of 'hc' 1'1" '(orm . I h~ mct:dli c o.esh "'till be rrolll the lOp rai l 10 Ih e ' Ol.'bi.,ard .
(n}-f-l'lllring "f the I'bt form . T he n OOn!!!; ml)!;1 be tOll" nlel· ed of rwruokirl material :l nd ""'« nUl lr Jve hoi"" l ~rgcr Illn n 9/ 16th i nc lr~"S in d i",lI cle,. " In)- U"i~lilllt ....... ui pmtll •• 1 lie roof t":l.1 u r " vrl:.ing I'btfo fltl ,m,'" h,'c ~ flO" w drh'en (!fum(,). wit h wire r<) pc~ lea dinll rrom l h ~
d ru m(5). over ~lK:avc •• 10 su ~p.:n~ioll or Ilnc homj)c poiJll~. iiIll hal lhc
"/J.
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.. III j 1.'.).J . .. III. § 1M.! . .. /II. ~ 1.1.6.! (A ","," . I,>t\.,·,,,d n",' \>< ph,,'''') . t",,~ ,,11 " /J.
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56_117
i.,olnlEHS ,11'1l SC.WFOU>S
I S6.ICI{I I
rl atl<Jrlll cnn I>
fric tion
d~'\·h.-.:s
I)'
cI\llo;hC'i.~' E~~iw
SI ...in in dll: ~h;ut~ n.u. 1 be hn\'e fiUc'(] k cy~
rrc\"~mc..:l, and connection ! ~u bj.:ct to torque 11I U1t
or !>plill""-" . ".
[Q-Drurrt5 ~nd Sh~:tyl.'S. On ly :'prTo1'cd m~leria)s C;1lI be uso:tl for druOlS,U On))' {IllC Ia~r of mp<: can be pc rmit\r:d on the drum,. The slMldard set. fflrth tll ~ Iyp<:, dbme\e r, nnd pilch of the grooves 01' the drum Ihm huld the wire ro""." [Ili-Gt,rs. Tile A'"C ric~l1 G ear Munuf:.u:lu rcrs AS$OciatiQlI setS [flnh MKlld;,rd! for gears. which Ih . gcar. fin Ih~ powered pialf01"l1l mu'lm ~e(. " Suilable IIInter~~1 is "'quiT"d." Good gc.,r 1«lh" :Jl1d 3d~1I31e Iu\".icatio,," mU ll b.: provillcd. [mJ- l lIs~c1fIl" P.l:Ut.o;.
The maUlifaclllrcr "'1151 p l(lVidc n
"">;"'" of i11spt.-c1iug th.: gcnr ~••m:h as pl.1tcs or rltlgs which pro\'itle
~ method of vi.uaJ i" r.rcClio1\ o f Ihe full ... ith h of the Opet:1 lillg S~.,. r facco;." (I"J-lIuhli~ Milt",,;. Th~ hoiIil ilig motor mUM ~:ilij" ' 0 lill 125 pClcenl of the mtc-d IDad a l ,my place the plnlro m, (':III 1m"· d ! ' If 100 &"-"1 a load is pl~eed Oil the hoist 1" 0101. it mll.~1 be tk~iEntd ttl ~t ~!I !1
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{\'}-HIlI~i ng I{opc~ ~nll RIl(I~ Cmlnl':lioo~. Th e wire rup.."l mU~1
Ix of a !;'trw;n d:'SSi Jic:llio n" and gr:llj(·!' A
m~la' .bm I ~g
mU;l b..: nllactl c(J to on~ of tho wire mill: r:l~tcniJ1g', whi ch conUt; n, infofJJl;llion ",i, h r<:!IP;:C' /0 the dJ:unelcr, cI:u;,;i fi~alio" , " r:\dc, m,m" ufactu rer, mted br.,.Jkilll! s!rC li sth , a il e! in.w llalioll!' Tho:rc nlUSI bt.: ~ mini mum faclor of " ,fell' of len." The mel hod of att;lchins the "oi~lins ro~ II) !h" d rum 31\d IIII' Iypell or " 'in: ro p<: f.1slcnill!;.< ;In: ~pc:cili cd/' IpJ-lI mk~ Th..'Te mUSl be I \VO i l"bpo:n
The l1ri mal)' b",h i~ nh\1IY' ap plied. I>nIL'S/i llO'I...or i~ nrfllied 10 Ihe drive motor.'a The second~ r)' br:lk~ lUust \),: nppli cd ",hen e>'cr I"e prim..·uy br~lr;" h:L~ be\,n appli<-d 3nd ~ I1Orrt ~l' ~IOf'pi"g rime ha~ dapsc(J. The secondar}' brake mu, t ~1'-O Ir~ prn,-;dcd with an raw ~p'-'I!d d~'ic ~ and 111U", be: "ppli..d wh c~c"c r Ih.: bPC<'iI n r Ihe tlrum or rlalf"nn r"'l<:llCS n nl;L,imunl or 1010 JlC rC<..~11 of the r~lro ,,,,'Cd. The o\-~rspcetl d~>-icc' must nlso ~h(ll oIT Jl()wcr to Ille dri"illg mOhlr. Undor ~u<.:h circll u,_,mM6, Ihe pl~tforlll ~houl d nl)( \f3,-.1 ovcr ,hr~e r~~t bo:fon: Itl c , ccolltlnry bmke ClIS"SC<;'" Th~"1C " lIl"l be m. arr~lIJ;L~ mClIl for le,tins the ,;cco nd:lIY brake. " There :I re ~C" trul dirr~r~nl Iypes 5CnIl1d;~r)< bra l.:..'S. "'hi~h 3re di\O<:~ in ,h • .~~ IId:lld , "
or
[q}-lilcclrkul Wl rin): anti Equiprnenl. Til e ~ Iamlard ."1\ forlh rul os for decuk-J I ....iri na lll\d ~'([uipn..,u ." Elecuic" l P:lfl ~ III U51 be
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56_119
L,\])DERS AI\D SG,WFOWS
§ 56.10(1]
gll~nkd.
prokeling Ihem against accidell1nl e011lucl." Adc"qllll1e grounding mu,1 cm;urc llial 1\ single ground or ~horl eircuil doc. not prc"cnl the normal and filial stopping dcvicc, from working properly." [r]-Conlrols. All roof-poII'cred platform, on's( h",'c ~omrol th~ poII'~re<J plalform i~ opcratc<J. The controller re'Iuires the ()pcr:l1or 10 follow ~el procedurc' to run the platform." TIle cO!\1rol1cr i~ lIs<:d 10 lift and lower the plarfoml. a, wol l a, operate the roof car. The com roller :11,0 ~ef\'es Ihe function of mrning off the powcr. if Ih~re i~ a malfunction."
leP,; by which
The control" 011 the working platform mu,l be dc'isned <£) thnl Ihoy do !lot work unlc'iS :111 eI,clri~~1 protective dC"ices and interlock, nre in position and the roof car is nt un e,tnbli~hed operating p
The mnin drive for Ihc machine should be desisned so Ihat it can
he manually cranked in an emergency." [t}-I'rotcctive Dcvkcs. A number of ekc!ricnl protective device, n1\>o;t be designed into t hc powered pbllform, The operating d<'., /d. , I fl.J.
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t'ROD. l.l,\ll. I'RACnn: GUlIJE
l&-tlO
vice'S for the working platform mu't not operntc ulIl~, (hc roof c~r i, iocatc'<.l ill the corm:l po,ition." COlwcrsdy, when the I'ower.d platform is being op<:fatcd, the roof car control, mu't remuin inorer· ati,'c, so the roof car call1,,,1 move while the plalform i, workin!':." I f th~ tension ill the travcling c:lbJe c.xcccd~ safe limits, the down direction rclay must 1:" d"'Sign~d to open." If the hoi~lillg rol"" become o\·crload.d, an automiltic O\'erio:Ld devioe must cut off I'nwcr to the mowr in the up"mrd direction." If :lIIy hoi,;ting rope bccom"'S slack, an automatic device mnst CUI otT power to the motor in the downward direction und apply th~
brakes... Limit device<: mUia prevent the working platform from going higher or lower than it sbould." If the nomml limit of tftlvd is rcache"l, a limit device mu~t preyclI! furl her molion ill lhat direc' tioll." Directionul limit "wilche, must di,cnIll1<:Ct the power ~nd npply the primary ami secondary brak.s if the driving mceh"ni~m fails." l'i11:11 terminal stopping dO"ices must pre\"~n[ the pbtfaml from ovcrtravcling a( lhe tcrmi!li,l •. " The dC"icc is located ju~t beyn!1d the lIomlai terminal landing. and will not function if lhe plalform ,top, nO"11:III)", but will uctivate to stop the trave! of the platform n~ SOOn liS it passe; Ihe nom",l posilion. The j;llal terminal ,lopping device di~connec(s the power from (he hoi,[ and applie'S bmh th~ pri· "WI)' :lI1d ~eeQl1dary brah"5.' ., /d. j to,<>,2 .
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IAm)EIlS ,,"s n SC\ Ftl)l.D!I (ul-Eme'~lI(y
Slop
t 56.10(11
S"'11Ch~ E.:l~h op':f~lint dt~i~
h~"c
all emerGency slop switch. Emergetlcy sla p s"' jlclH,~ arc roo bullons ur h.1ndk5., Marko;
Bcl"mc 1II1}> .'flll'fgCIIC)· oroeration of lhe pL11rorm c:l.n occur, lwr.. ..·ay conHllunicmion mu~ tlx: e>tabll~hcd between tlt e roorpcTsonnei and l he (lblform pcrsonlld .
[ ..}-Type T I'owercli 1'llIl f(llms, Ttt.: . .,m.: rub """I)' 10 T)'I~ T po""crcd pbtfomlS, wil li minor except ion,. DcC;I.\I.C T)'f~ T powcr~d I)JUlfor",~ only h~,'c Iwo ....i re ropes, (:.;llIrc o f o n.. of 11o~ rOflCS c~n callie serio us nud d~lIgerOIlS movement of the plIufonn . Thefe(ot~, \IIo.ken on Ih<: "'or~i"S pblfo rm "IUS! b: provided ....i th ~p prol'.,j ~:!f. ty bcl1~, \IIi[1t aPP,o"cd rncan~ of :llwchillS Jif~ lill cs 10 Ihc roof or III( "-orki,,S platrorm.[xJ TII5pt'C'fiOll! [JJ-,\cccpCOftC~ I llSpcclIQQ. Aftcr insmlllll;oll;\nd tldo •.: u#, the (IO,,·~rc-d pIMf,,(Jn O1 \I~t be put 1l1rou/:h:l11 ncceptntlce [eM in the licld, \0 dC\~tlllinc Ih31 aU ""TI ~ Confornl 10 Ihe M:lntbnl ami IIt:l.I all ""rely ond Opcr:llinS C{j llipnltnl functions pro per!)'.'
Each limo; 0 major IIIteration to ,he i".13IL,I;0 l1 ;, n~\Ii So, el f a~C(pl:1f1Ce I~~ S mu:;! bc pcrfomlcd.
~rfo nn od, ~
/IIJ-Annun! Inspection. u.ch il1>(nll"tioll mu st then be 1.:s [N :111.:1.._1""ct)' 11 mOllllll ill ille flll.1.<.~.tC orlb<; cnforcing OP11"'"1>", t I6.U, 'M, t 1'.2
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~n owner's .q>r~IIL" i\'C, or Pl1 ' nsurane<: wmp:U\)' n:"r~o:;cuI:llin:! AI I h~ mmo!!1 jllSroectioll. al l f1o,ru mUM b<: insptClro and . ... h .., "L~ c~s~ry. ''''' led to d~tl...-nli!\c tlm1 'hc~' !lrc in proper workillg o rder. J>~tl ~ subjec1 "'e~r' muS! b.: l(:Stcd 10 make ~urc they h:,,'c 1101 wo m 10 the poi1\l,h ~l lhq j ccpardize Ihe ~f~ Oper~I;OII or,lle t'tluipmen!.
'0
[Hl}-Spcclll In$llIlello~ Ilf Gl;>ycrllnrs nnd SCCl>n dnry llrnk c.o;. At le'.' t Oll ce a year. in~pcc ti(}n an d tc~(ing of Ih~ governor :md St.'C:olldary bt"~l.:ins sy~l elll mll5t be P'lrromlcd.' The inil~Lti!ls n,a: h:",is.m for Ihc on T.ip..:ed device mmt be ~ht..... kc:d 10 mah ~u n: it work~ :It thc PfOf"Ol' oVenpe,-d . If n~I:'.'I.'ry to cmu:lUCI thc Icsts, t he initi~tillg dC"i ce :Uld the hoi~li ng machin e mll!t be removed from
Ihe buil ding nnd sellt 10 "
~hop
eq uippI.'d for
~uch ":SI~.I'
Ij~}-M nllllcn~lIct
l . sJK'C1k1n nllll T esl$. ["cr)' 30 d3)'S., l":ICh ioul1IlIation UlU SI u ndergo a m3 inte nnncc j"~l ion and 1<S1. Req~jrcd main1<:lm!!~U i"c!udcs rcp]acemenl of broken or \\'0'" paris, ch~c kins nil clcctric~l conntct ion~ nnd u]] parl~ " f the equipment to ma k~ ~u'e they ure " 'crking ~rl)per]y. and performin s lIeccss:lry ma i.. t,;11:1'1C~ o n s e:l.I's, S1031h . bG:uiO!;'l. b rakc:s. :md l h~ loaiMin c dnun. The pnm IIlU$( be e~al11 i n~'(\ 10 dctenT11nc the do;S"~ of wear. T he controll er con tncto .. " lId rdays mull Ix kept d .~ II . ,~, mll ! t (l lher !,:lf1 ~ fu n.r.:lioning o f which ( o u]d be an«t~-d by dirt Of OI h~'" eOl1la m,,,u nt"''' P'Ins ~hOll kl be lub ritato:d in UC«llobnc~ Wll h tile l1l1I"Ur:U:IIJ ~ I'S r<.'C(lmmC.'f1dation~. r~ces~i\'c II"' of tubriC:IIII> ~honld Ix avoided ." The hoisti"g ropo..os should be: resh~ckl"d
,It.
~ II
at le""1 every N nlPnth", find tlte damaged
~nd
fatigued po llioollO re-
rnO"(d,u 'The T·r~ ils. mullio",,- or other 'uW~ in the fM~ or th e building mL61 b<: k<:pt in pro,..:r wOlki"S order."
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UUIIl-:RS ,,:-; 0 SC.\ I' HJI.OS
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i~l-ntphltelll""'l
or Wire Ropes. 111~": i~ a r~l'r:t«ment for wire rop<.'lI. wilh rcpl;, e~ Ol ~ "t fmm IS "lOnt b5 to 36 months, lI~pcnlli,,& 0 11 Ihe d rum diantcl.er a mi ro pe lIinmt'C"\" of Ihe ~~lIipmcm . " In allllilio". whene,"er Ilter~
(.·i}-I.og or Inspcdions. A Jog lIIlI, 1 b.: kepI o r ~I! malm~ n"l1 ~ "nd t!!'llS allli of ~1"'Cia l in~pcCl iCliIS of SO'WII O/"S ,11111 s.'Colld:u-y br~kl!'l . "
..
[21-Mobile &11f(oltl5. The ANSI A9~ COOI Oli ll.'" prcp~r~d :1 nlln,k r of m:lltd~rd~ lhal 3i'Ply to I1\Obik scaffokk l 11c ComOl iltrt' lI'as for111~d in 1948. Inil;" I]y. Ihe _ttlmJard o l1ly ilppl ioo 10 Mnnu :llly l' lopdl.:d M(lb;ie L:nlllcr !Mol"llh :11.d Sc;lnolds (Towe",), ANSI A 92 .1 - 1977. J11 1961. I'clticl c· nlOll1llcd d ~ ""t!nt\ nml r
'"eluded.
T he Sceld:,,;;'t for th ~ A92 Comlllhu:e i~ Ihe "11~",cc of ""II:l iInsureK
C~1t
("~M ullall~· l}'upellcd
Mobi l" l.3t1der g~nd~ I nd !Xo{(oltl5. b dder !c:lrrol d~ are l~dd~r~ or ~carroI~ IlII ",·hL'("I!>,. whic h <"OIm, ;'1 ~'arioos do;sn... bul the kl.")· ingrcd;o.;n{s arc nn ~ Icvmed wo rk pkl1fnrm n!ld wbccl ~ o r eMlcro; 10 mm'c Ih" plat· fo",•. The M:vttfunl" do..'S nol sp«ir)· d<:s;~ ~nd <:OI ,slru CI;Ol1 r~_ ""'remclt l_. oc'CauJic of Ih e wi d ~ variety o.f Illaler;;,), mill d"'i l~n possibilities..· t ·n.c~:lJlIt:.nl $1"1..... hOl" ........... Ih at tit" mobi le b llckr si .. " d
The ,;t a'I
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Ml p!!O'!$," usc of . !ip. rc,i sr,tnl ""ttcriai, on :;t ~ps arrd p!:otrorm," Gu~ .d r~ iL~.'" tocbQ.:ards!' arid ~\"CeS.S 10 ami ("1:,..... (rom the plal -
fo n,r." wirh n fa cro r of rour safet)' rn;,,!!in, all d :' method to hx k the whcd s, Me ro:tluir~d," Tubular ("bril':ncd fr.rmc sc:r.fTo!r.l., ," [ubu b r rubri ~;l! e(1 ~~~ri ou:'l fo!dilll~ 'lcam~ d ,.'· lulk! and n .upler ~anblw.." :lIIti mobile I,'dder ~t ,,,,ds" " " di.... cu,,,,d. ,\d"'"lu~re
whwl., or
CH"~",
I'ropo;r uso: of ladder ~!aml.,
i, WI [onh. For insl~ucc, wo rkeN :[r~ proliiUiI.d from ridin!: (] n the units ...·hile the)' an: IIc:irr;; mu,-ed, unk!.~ ~ dl'Quatc guardrail " mKJrail~, nml [ocbQ.ml , lire uiied . IIle rorc~ n....:'~~1)' 10 mo"e Ih" :;c:rn"old i~ appli.:d 1'1$ close 10 th e ba~c a~ practicable. an(! I'ro\"i.
L.~d
~'I se.
roJnlll OIl
l.ab.:llog rcqui r~ ll1 c "ls in clude p r~"a\lli,nl:rrr /:rt:.:l~ w:rrnillS of ",,111 mOL' Im~~rrth . TI l<: slan dard lloes lIot ~. ( fo nh Ih e );,beling requircll><:m, ill 'kl~il. D~ Ibe !:\dd\:, st31ubrdi do. bill " ,••c1)' s,,~.... l~ arC;\ji "for cumid cral ien," , ueh a~ impcclioll. proper r,ckel ion. SCUll'. di, I]bing iMtrUC\ioJ\~ slor~S" :md ""r.:. "and oL her ;ll>( ructio,,~:o., dC<:ll1cx! ncccs.
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56.IO!ZI
fb]--i\lonu:tlly·I'ropcll cd Elc\,"tin!: Work l·hll r\) 'JII~. The Com mittee on Mobil e ScntTo ld ~. Tower,. an d l'blrO m,;. A'i2. has n Subcommittee on Ele,mlnS Wo.k l'lmforms. Th~r I'Cvised ANSl
C92.3- 1973. i'~uins ~ml (,pproving ANS[ A92. 3-19BO on ':\fnrch 19. 1980. Tile s.tandard for man ually.ptopdlro ch:..·:,ciuS work p1a l rorm~ i~ lin';lro 10 maou~ II)·· propo.:lkd . ..."nically-~dju~lablc wo rk pialro rmi uK'(! 10 posit ion "-..nhrs 1I11d their nlOlcrials abo....: Ih ~ d ~vi= l/; Th e 5111 11 dard ooven dC'~IIIII S work pbcfo mlS u!iCd ;n pl~n ' ~ , O\'e. !eve! ground."
Mnnunlly·propelled cl~Y:ldng work platform! aN diller [o .... ed. or lI",nuall), movcd, bori zonl~lIy 011 wheels or ca, tcr5. 'flt<: wo rkers cnn 11I 0llni th e pinlform w;lh Ih~ir matcri3 ~. and be lif,ed up to Ihe rosi· lion where Ihe \Oicr k is no:dro. n ,e ~'~utblll CO\'ers weh COIlCCnlS as m:ltcrillls.'· w,lding st:u: • •,b rdi. " mi"imum nuw work 1o.1d.... Mruc[uml S3ftty factor." s.ta· billly." pla tform rC(julrcm ~n' ~ ," ~~fdy f~clol"li i ll Ik!.isn of Ihe clc· ",,,inS ~.""mbly," and bll l'Sting slrenstli of h)'dmu!ie p,trn'" ,)'slelll~ prot~'Cllon
includes pNventing the platrorm r~il ur~ hydrau· PIlCUtn2!iC linc." or fDilure of" wire rope: or clt:,ln."
Rcquirc-d
from de-;ccndi ng in the event of n [lOwer failure'" lie
0.
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Any ,;iogl~ m!ltfu!lClion of Iii .. COIluolsyMcnl noll""- no! pl!l lform mD\'eJl\I:I1l.··
f~'SUh
in
Th eTe must be au cmcrS~11C')'lo\\'ering dcvkc," adt..-qu!ll~ mainte. nance" ~nd (r
[c}--Self'Propelled Etc_lItl,,!,! Work Platrorm~. Work On Ihi s Slllllda rd" began in 1916, nnd i, WII S;Ipprovcd on hnuary 13, 1979, It ~JlJl lics to ~clf.prCJl"lI.d, vcrtlcll1y·adjll5t!lbk work plalforms used to poliilioll perwnncl nnd !hdr IOOl:l nlKl m ntcri~l, at overhClld work locations.
Self·propelled ",orl: pblfol'l'Tls !lTe plW>.... O(lCr!ll.:d. wilh COIlIrol. ror the no.tehi"" funCli,",. on Ille pblform. The platrorm no,y be "I.". v:'Ito.:d, "xtended horiZ0I113 11y, or rotaled." Tile requi rcm~"'l~ or I~ C ~Hnod ~ rd ~rc \"C ry ~llIilor 10 IlL .. r~'
[d)_Boom·Supported EIe.mlnl: Work Pbt(orms, 111i~ st~n· dard" was nppro\'cd on Inly 17, 1980, and cOVerS work pbtfoml~ Ihallire ~uppor1cd by a boo", which cil h~r \do:scopcs, rotat~'S, or CA· ICIl!l~ 10 position flCr.
Th"
be dlhcr
sI ~lIdard cO\II~ins
" "'1<0'51 Mid.
C~II
"' ~2 . j.f '1:l0 ~
O1 I"'U~!ly
or
~ Ir.pmpdled .
III( common provisions of t h~ mit ... SIan·
1.: .6.
t 7.3.
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Scli'!'mpdlod
Et<"lin~
II'OI\: l'I.1l(o""",
A92o.·1979.
"Id,! Ll . .. s..""~pra~ 50_Hl{l W']. .. "n",,,,,,, NOIim.l S,."d.lr~ For ikx>
M 2 . 5· t~ro.
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l6-12S
§ 56.50 Sources of Illformalion There are a number of wun;cs of infornmlion on ladders and folds.
SC:l['
[l}-Consumcr Product Snfety Commission. If Ihe ladder is a COil· sumer product, it is under Ihejurisdiction of the Consumer Product Safety Commission (CPSC). Thc CPSC has a loll·free number 10 provide information on rec.11Is, product :;.;Ifety, and to ~cccpt reports of product·relnted accidents. Thcre arc regionul CJ>SC offiees which C~l1 be COtliaCled. I'ublicntimts of the Consnmcr Product Safcly CQIIlmis,ion can be oblainc'd from: The Superintond.nl of Documenls U.S. Priming Office W,,-,hington, D.C. 20402 The CPSC has issued Hazard Analyses :l1Id other documents con· ceruing h,dders. The U.S. Government Prinlins Office sells 1he CI'SC documems. The CI'SC j"ue' documents which include Gen· eral l'lIbiications, Laws. Orders, NElSS Data Higllli<:hts, Hand· books, Manuals and Guides. Fact Sheets, Alert Sheets, Ilibliogm· phie,; and lisTs of publication~, n monthly CPSC memo, Ha~_1rd Annlysi~ Report" Sp<.'Cinl Reports, Product Safety Education Unit Series, Annt,al R~pom, Consumer Deputy Programs, atlt! COIlSUIl1' cr Compluint Contact System Annual Report •. The Consumer Product Safety Act requires the Commi.<sion to maintain a National Injury Information Clearinghouse to colJt.'Ct nnd dissemilmle data concerning the cause, and prc"enlion of injuri'" nssociatcd with eo",;umer products. The Clearinghouse responds to over 6000 requests for illformmion a year. Mo,t reque'ts ure un· swore'<;e, nnd ,]>Cci,,1 reports contain 'lImmarks of accident invCSlip. lions and other rdated information. These case summaries arc av"il· able for ladders. Microfilm or paper copies of the orisinal rcpom
of""'"
i SUD[ I}
51>-129 ~~ tt
,'OId
be m:,iled upon f~qUC>l uuder tile Fr~~dom of Infur.mll ion Act COIl~\lm...r l'rOOlicl S;,f~iy Ac!.
If the lIl~nuf~cturcr is i
Inj"ry l" forll1:>.Iion Ck:oonllhou51: U.s. e'm'UTlle' ]'rucluct Snfer)' C("'l!n i 5~ ion HOI Wl"Slbard A '·c nuc. Ih)om 625 Wa, h' nGlon. D.C. 20207 A liM haus.:.
or ~" a!tDblc lillt:s. ~a" be OOI"ilWd by ""o.in& tI.e C1driDC' or
The lIl:l.jc r l'OUfC"eS d "Ia g:UhCR"d b y Iloc Clca ringhome inc lude Ih e Nali onal £ !.-<:Iron ic Jujn r)' Snrv";lIallc~ S)'Slcm (NEISS), Acci· d~nl 11l,·"" lil\allu"., Ot:a lh C~ rtilk~ ll"" mid COlISl>nM!f ConlflL1 inl~ aud o lher iojlll; I"ql('IrlS. s uch "" Ihmul'-h media. The :"b li
"
")lio,,~ 1 (~lIa
." cdd~ "1 itl"cslig;ltions inch' tle OIl-5il ( Of Id cphon.: interviews \'; ct im~ or wilno:s,'L"; con~crn;ng nil ~ccidcll1 . the wn~'$ in whk h Ihe ]>rod UCl ,"',\\ u!.t<.l. l h ~ c;ro;u mSIl"'~Cl', ~ Ic. l'olH."C. li r~ (Iep;l nmeH\, and roro1M!f1" "'flOriS m:l)' be It ~t!d as 1OU 1'1')~mcnl:1l lint:! . 1\ 11 ill\"e~ ligaliu,,~ h,wc lx,,,,, likd ill the C lr:a ringhou~ by )'~~lr and NEISS I'ro(hlCl ~"OIk. CPSC an,.l)"Sei of ha~.llrd I"'!h:rns ~xhib; led
wit lt the
co", ""
" 11011. ..."'.. '·'MCrle.: GU IIIV.
by the ",-.;it!~nt in"',.lig;llio"" are u", i)al>lo: fo r s.kch,tl such a~ laddc,~.
~rod Il C ' ~,
The Ch:arins holl sc co]kct < Dealh C~rl;licllt ,,,, in which con.unl cr :1,<: likely to I>c invol,·cd. The C.r1ificaK'S lhc111 ...1ws ~re not di'S<.1J\;naled. but compute.i"od sunltlwri<:>; of indil'idu:ll ~Cfl iii· cntcs :Irc ~ v~i!.1bk:. p rod\lct ~
A fiI~ of consume r COml"winls .ect:ivw by k11tfli 0 ' \dcphollt calls 10 Ihe CI'SC i~ ;,1,;0 m~inl:lillcd. T he ,'Oml"bin'~ :••e ioocxc.,J by
;../EISS produ ct ~ooc. The file "II>(> rollt3iJIlI IlCw.pnpcr prooucHeI;l\ed n~ddem", Th e Cl'SC llils
8a1hcr,~1
aecoullt ~
of
all impr<'S;;vc muoun t of informali oll 00
!:tdder nccidcms. A c~lI to the hOl lilO c will determine wh et her there
h3S been any reca ll 0, cm ' et: ti vc aetiOI\ wit h rcs~.d to a rarticllhlr moo d. ,\ fe"i el\' of e.ach yc"r'~ cumu!3 tl,·C illlk.~ from th e MIl1Il hl y CaI310111l'' of the Unitod Siale; GQ'
The ClOSe Annual
R~ ]l{)ft
h:l> an
nppl:ndi.~ l i~liug
all
pTodllel~
which h" c b«n . ccaJ lcd or which h~" e been , h. liubj,-.;t or corr()l; lin action. :-I ElSS D~tn Highligh ts provid e a ~\ln .m;lr~· 01' t he slall"Ic.ll i"fom~"io" fron, liLe s}'Slem. Fael sl ...~Is ('OJ""i" infom1:u iou co,,· CO!noing O:I1;o. ln products, wei. 3.~ ladders.. I-Inr.ard ~n;.lr~i!i ro!pOn~, sp:cinl TeflOrls. tl~!~ ~umm;.rio:s, ~rod~'1u i...."",ig:,tiOlIS, ill·tl epll, ill' ,·~ti&-"ion~. COll5l'nler co mp\aillts. and ~Ulnmari"" of
[2}-Nnlinwnl Tcchnital Intunnm;on ~r ~ice. The N,lIioIH.l Tech· !lienl [ !lforU1~liol\ S~ r\'kc (NT IS) i. ,h ~ cell l.,,1",urce fo r all s',,"crn' men! l ~hlli ,~IIlCll;lIll1,~'I !1. It f"lbl i~] ...'S a~lrnc!'!O of tc"ChtlH:~1 ' cpol1 i ."ire a month (or;, modest :umu:ol ~ullscri p\ iw, ra!e. T ..... :'Iddr~, 19:
NTIS U.S. IXpnt1lnClll of Commerce S2SS I'ort Itoy,,1 Road
L\uIlUl$ AN I) SCAHOt.DS Springfield, Va. 22! 61 Id~n t i ficalion
Department will help idcntif)' documen ts 10 ~:lreh for inform~ I ion 0/1 ladders. Tll~ Cu~\Om Scan;" Ikpa rtmenl wi!! perform a se:ITch through t he Dblog COlllp uler ~)'i!em for n f~t of S125 nod provide up 10 100 ~b\.t T:lel~ of ~n&il\~rin, nrticlts deal. in g with tlw ~ub~C'! reque:. led . A f~ of525 iJ req uired for e.lch addi· lion:tI 100 lIils lrJC Is. The
[J}-Sl nndards nnd Tcsll nll OrSnn[za t!o ns. There Ire scver;1l or· r.:llli Zaliom thaI have pa~ ~ln.ndnrd~ rd:u inS 10 b ddrn; . oo flCJf· rold~. They Jlavc condu clcd c~ten siye research nnll lC5Ll ng on Jalld ~l1 ~Ild !.CafTolds am! po5SCU II "'1:;tlt h of infomllliion. in addition 10 Ih~ Mandanl .• Ih~"Il1scl'·es. T he primJty S13ndnnh orl3ni7.lll lo n in Ihe U" hed Sima. for lad· lInd scnrrol(l~ is;
der~
An'crica" Natio!'",1 Slnndud!; InMit ult, Inc.
1430 BroDdw,,), New York, N.Y. 10011 An otller Or.llani7.:uioll wilh
sl :md ard~
on
b.wc ,~
Dnd !.CDrroldl;
hn~
inform:llion relllvant 10
i~;
Umfcrwrit~rs LDooralorio:s. l oc. J33 Pfin,!lcn Rood Northbr""~ , III. 60062
All inlcn lalioo.al or&""iozatioro wbich Jadd en. scafl"o ld.' I,;
",,(I
Int ernm ion:ll ~uJl:l!ional Snf"I)' :md HC1Ilt h Inform alion Cen tre Inlern" tiOIl:tl Labour Offic~
en 1211 Ot... va 22. Swit ....... land R~b tcd
mutcrlal nMy b.: ob1 ain ed from;
American Soc;"I}'
ror
T~~llng ~n d M ~lcri a!s
19 16 R:tec Slreet l'hibdc1phi.1, Pa. 19 103 [4j-Th~
, I.
ATl.A
EIclllnl;~. T he ATLA E.xchonl:~ bns an elIll'tl~i l'<:
s..... '·.R•. ILO(l"'<TIl.:ulon ol I._lour OrJ:l" iz:"ion)pu ~l"",lionCIS. I~. L:uld<1s.
I'RO]), LIAI! , !'RACTICE GrJlI)f:
lImou", of in forn1:u ion 01' bddcT and :;c:Itrold 1;[;&:lI ion, Tho: 8;dIBIlS" s"r"~ JlL';m itrs'la\l')'C:~ by providing Tq>O rl~ ml ,u"l'pontd ~nd I'lIportcd "crdic" and settlements; urlkl cs Oil the ~ nb~ct ; the 'dentit)' of plaintlrr~' ntt orney~ Who ha"" ~ubmitK'd . in,ilar search roqu~\S; ro:gulatol')' chron ol"f,it1. nnd rccalb: computcri7.ro k.1rclles ming tnginCl.:.ing. S"f~1y, 11-'[1'''1, Sllm:l.uds, Ki~n[mc, ~ Iod industt)' d~[ftb:l'l<'!i; ~nd com rlllicrilcd lC.1n:~CS fot frtkral ami S[~tC ilppcl!~[e decisions, l'\(julrie. must be w bmiu oo in ...·riling and bc ~c<:omp~nied by 1m E1CbM&t' . esea rcb ' Cllncs[ form and a check in [hcamouni of SIOO. Th. add r~"S.. ,,,
The ATLA Exclmnsc AS$Ocullion 0( TM" ' L:!.\\'ycrs of Amaka 1050 J IM Slr~'(l , N.W. D.C. 2(X)()7
WIL~"inSIO!l,
The ktter mUSI s[lCcify th e type of product (I
The names lind ;IlJdTCSkS of IIllCOICYS who h) v" sllb mintd si mila r ""Mell rcqu~"!It~ i~ impo rtatll. TIK: list refers to the mod~l IlfIxlnct th ey were inv~'StI Bnli ns. From the hundreds of n~me> lisl~'U, mnny may npflCIIr with the same ",odel I~ddcr or s.e~ITo!d. C<1 nt~cl with ["OS\: ~1I0111t}"S "all TdoUlt ill ~ n exdl:uJgc of infom,arion-lrial lron 'lCripts, d,~iticll"" diKOYery rdlXlDSC!o, ,.a~ of CllperlS, evidence, ~nd r.;'50;1rch. f'r"qncmly, it 13 lXl~siblc In locate nnoth<:r attorney han dlinG nn nlnto!! ident icnl c~s~ agai! .. t lh ~ §,unc dcr. lld ~l1t. The altornc), nw}' be }."....... down the line in his ell$<: lind ha"" fini.hl'U hii j" "I,.."Iligalioll :ond d isco""t)'. ATLA mcmbe.~ s bl!"e tllcit inro rmat inn willi oth~r ATLA nl>:mbers. for th e cOS! of III~ copyins. ThUJ;. nweh of tb e work on ml ~Ltomcy's CMe mny have nl rcad)" been ,nnlplClcd by >onl0011C else. Alk r idcn[ifying Ihe anot"llcys who i~1V<: s"bmiu~-d ttqut'St~ 011 the !
1,A[)IH:RS AI'J) SCAFFOI.1)S
i
56.5lll5j
with it brid q"e:'I,iollnn irc roncerllinE his cn:o;~, hi~ (1pc rl~, and so rC flh. Fellow·up rcquC~I~ for m or~ nt~n si"C in fofmalioll c~n tlK:n Ix: !1l~d~. A T LA
~M
al'ID
'Il"'~ rch
tbe ensincerlllE
d~t ub.1~
discu!oSed suprQ
§ S6.0 1[3l!!]. [5}-E~l,;l n tc ri" g Lltcrn lur~ . A search of ~ nlli1\cc ri nB litemture may"" in order. Til., rmdlN'{ StI/fIY ...·'...T ii a "alued eompcndiunl of abMl'llct ~ of anicl~ primed in tnllinccrins, mnlital. !c~l, aud ~'fcty j ouI'l t~I~ , It i~ pub lisbed b)':
T lte i ll~lilutc for l'tOduct S1fc ly, Inc. 1410 Duke Uni\·er..it)· Ro."KI Durhnm. N ,C. 27101
It al~c conllli ll s currelll n ~ ws rel ease. from wrlou~ go.'com,c nt .. gen· ( iC!o a.ud pri. :uc Org3ni:talioll~ rdltin g to teC':llls. co((c'(:lh'c attion s. mod other »fcty·,cllll,'(] is.u.s.
..
Th~
"
sou rce used b)' cnlli1\ccr~ 10 \oc~tc nrl!clc~ is HI,' F.lIg" lIc~rin" i~ pub\ish<.'il by Ihe [In\t(.'(] Enginecri ng Cenl er discu'>Clt "ifni. The Engineeri ng I..dt·;. i~ loXlII<:
'ml,·x. 1t
The ' luickC'i' WllY to ~vnduel " M'OIrch j~ 10 d o il by comput er. The Library will «mlh le! :l compuler s....:If~h for iuformalio" &c'1"lCtlIh:d uftc r 1970. an d" "' ,11111"\ ,.arch, if r.qll c'll~1. for inform alion in. dexed Ix{me 1970, 111 ~ Engin ... rlng S.",iell·It ~. " lru l), cQ mprehcn. si"e Lib.~ ,)". ... il h ~n on_line rompulcr information relrio.'V3l ')'SIcm. u~i"g lh~ Dialog sy~IC "'. TIle Libl".lry c~n rClricvc dQ(1lnR~' ts or 3 bib\iog rnp lt ~· concerning any subjc'C t or product. The libr~ry will lurr\f phouxopies of urtid c:5 rC1lnclitoo. T he Library's ~dd rc>o; i5: Unit.'(} Ens i" eerins Ccnt~'f Libmry 3~~ E:161 47th Sln.:el ~e\\' Yorl: . N,Y , lCO H Thcr.: ue man)' m lier d.o.tab.~ II~ b)' the cornpul cr .."..,.\«' at Ihe Ens1rIC<.-.,-j,,~ Society Libro .y. SlOth 3~ the N~liolWll Tedmjt~l infnrm alillll Sen'icc (~.rr lS). The Engine.rius C""lc r Lihrnry elm Mo.uch Ihe Federal Res;.ler ab, lraCt •• Ihe CO II G r ~~kl1tn l Record , nnd O"~r 200 Olh"r d!ll ~b:~....-s. inc\udi ll g the U.S. I':r l~nt omC
,-"
i 5'-50{'1
I'llIlO. 1.1,\11. t'RM.'TI O : (Ovllm
((iJ--Col:lpelll~'
[)eslcas- hi a daoiS" dd"C(1 casc, Ihe ex~!("CC i-s 1m: ( CUlm! i~sll~ . If:1 C\J"'l"'lhor'~ product ClllI 00 located which u"'"" the ~ u Sgf!>;lcd s"rcr alt ~rnath'c d ~· 'iSn, il ~ "Jr ...",~Jy persua";vc.. 0 .. tlr" Olher lr~ nd" t ~ (1l,I,le tk'·,15L:lring 10 plaimirr~ ca~c whell p lain!ifr ~ " ., (!Crl i~ ~ ~k cd, "A nd Il(m· man~ n~IlIUra C lll rCTh of ludck n; ~r~ lIme. sir? nOli" mnny of thes..: uSC th,s ~ugsntetl dC!iSn1:' 3nll h,§ rei'll)" is, " lllon'l kilO,,"." "Yo u don't knOll" or QII)' th:!t USc th:'1 dL"li sn1 " "Not amlnll d, b\ll th.y could usc it." Titus, tl~ 5Carch fOf rompetilOrr;' procl u ct~ is olk-rl a m~joT :t$po.-.;-I of I he illVL"SliSDlicn of ~ prodUCTS l,atHli!)' ~u i1 .
of a
fca~ib!c ahcrnntive tk">;ign
The fi rst I~;J.; i. 10 Kl~nliry the manurnctu rcr. or ~;milnr product •. Will! ~mc lallde..., litO. ma}' Ix:rs <'M~' :rs goinS 10 ~nle h:ul.l wi1J"c ~ lorL"l. SU cil UIIlclhod i~ more r;IIl.·eOlIIi\lmi'lg nne! 1'''$ comprdlcn· ~l.'c th.~n wrili'l£ Ihe lI'lje.- ns~iati(ln~ dealin s wilh buder llI11nUracturcr:o allll rC!luest ing ;I li~1 of J;,d<.I~r "'~n""It"IUf"ts.. 11,"; r ~d· drl:S~C!I nrc: Th. ,\",eric,1!! I..o!d~~f I n~[itut.: I I I ITal'l Wu~kct Ori.·~ Chicago, Ill, 60601 The M~1~1 LadlkT 1',0. Ilox SSO
M :lnur~cl llr~rs A ~\(JI:bljoo
Gre'O:twilc. I'!I. 1612$ nl~ N~tiorlal ·Trad. nlld t'rofCl'o"immt A",od ~t j,,"" or , h~ Unlll'd Slale" (NTP A) I.ubli!it c" an allllllnl dir~ctory wh;'; h id ~ "lilic~ ill (\u,,-
tr)" 3SSOC~~ljOlI$ 0( m.1n" r~cI" rers.
Once manufaClu re," .\te idclltificd. a lett er can be In:lilcd 10 ~:'ch ttqlU.'SIinS
plainlirrs
salC!l li ll'l"JtUtc 0([ lI! e ~j l.c :lnd typo.: of I~ddcr involvc:tl in
".sc. After b1"()<; hurL"l a oo ..al.." lil cr"I"t~ mrvc I>«ll ;.1111-
cr<:d, ph O logmph~ and
~jl<:ciliclltions
can be COlli pared. Th. inr"rma·
!ion e:ltI [""n be: n.ed in ""'"eml ....:I}." (L) M"' I im !,Clrtallt l~·, the hTochur~~ may b.: ~U [h Clllica lcd 11). n Nntiu 10 Admil and "ITeroo a!:I c,' Klclicc at the Iri31 to pro" c the r~a· ,,;bilil,- of Iho: 'UU"'M(d a ll er/L~ti,"" dCloiSII, rr."CII if they "r" beld imlllmb>iblc for 'mtl~ rc~,;()Ij, they Call he ui<:d on cr05.,-e'lIl11 ill3t iol1 of Ih" opponl" t's ~pert '"Hi ,"- ltOU'C exp:rI <' (2) The lIIal crin l enu It.:.: u,;cd lkg iS"~ ill uetu:I I usc.
._-- ......
l() ""UC~IC
all CXpc:T1 as 10 ,IIIC tJl:lfivc
... . .."
(3) E~po;ru I'rl.."\(nlly or formerly affilinlccl wilh I h ~ Cll mpetitor may he willing 10 extol Ihe "irlll~~ of th e ah crtl mivo Ues ign. (4) The COSI of Iho \'onlpeli lOr'~ prod Uct C:III be comp3.n! wilh Ih ~ produ", in qU
[7}-l'nlcnts.' Tho l'a tC11l numlwr may b<: loc~h.'tI on Ih e identificalion ~I ale of Ihe ~ ,oduc l. TM m:onufaClIlTet' may have malle Slnt'" n't llts in I,is pm~....t ~fll'lic:ot ion which !Ire u5(ful on dir~'(:1 or emsse:o:aminat ioll. J>mcnl ~
:ITc a S(ll1rcc or altcrrulli,'c dllSign!l. r"lenl s wit h improved designs n,;).}' be loc::otro, which " tWale the SIlk (If the offendi ng prootiC'!. 10 <"lwhli,h Ih !line or the ~n at the lime of Ihe ~nlc. Th. palcll1§ Ii" "prior nrC' similft r 10 Ih e p-1lcnlw device nTKI ideolif~' po.TIOn~ wilh kno.."'~'lIse of Ihe ~rodllCt who can so:rvc as consul·
I"'", Or
c~flCrt •.
omee
The U.S. 1'~Ilcnl will cClllfy pholIXo pic. ofP.11~m § as beln!; nUlh(I";c I\: l"oductioo!o. Th e U.s. ['nlenl Otrl(t n:qui fo;, up t(l IS <1"~'l; 10 jK'T(orm the rcqlll."lied cdlifinlions. :,lt ho llgh in ;:an em<:rt;<.,,ey the)' m ~~' be able to do,;n faller. Send the reqU<.'S1 wilh the palen! n"mber to be certifi ed. with $1.00 per p~t cnt for photoco pying ~II U $3.50 for ec"iliealiOf!. 1o, Comm j~l;o n
of 1'., len ls and TrnoIrmark!
Wa~hinst on,
D.C. 20231
P:o ll111~ ('III be 'l~a 'eho:d 3t ~ p:!lcnt libmL'y o r ~ny largo: library " ';Ilt a f1~\t"l d('flO!OilOfY. The pl'OC'CS!l is IiOIn<'Wlmt anluous for the nnjlliti~t<:d, but il ecrtlli"ly can' be done.
A p:,lc nt sc:Irch org~ lIi ~.,tion e~ n 5ClU'ch mI d nbt.,in ecnirl<:d Jllto· locopie!. nco re rCJtlilr , A p.11cnl !\<'art'h 0 'l;lltt;7.lUion whkh charges r~"SI"' abl~ fres nnd p ruvK:ks e.,ed lent sen'icc i~,
Patenl Sc~rdl lnt t rualional 2133 Ddcn~ liiPl'I::OY Cmftrn l,
~d . 211! ~
'Sf' I. F'U"'