Cocom Lists - 1958

BOARD

OP

TRADE

JOURNAL

15 August 1958

Trade with the Soviet Bloc and China: Revised List of Goods Subject to Embargo As ANNOUNCED in Parliament on July 30, the Consultative Group met in Paris on July 18 and 19 to consider the recommendations made by its Co-Ordinating Committee (COCOM) on the review of the strategic controls which had been in progress since last February. Mter the Group's conclusions had been reported to Member Governments a substantial relaxation of the embargo list was agreed. The revised embargo list, which is effective today, August 15, is set out below. The coverage of the former list has been reduced by the deletion of some items and by the re-definition of others. A small number of new items (asterisked below) have been added to the list. The list applies to Albania, Bulgaria, China, Czechoslovakia, Hungary, North Korea, North Vietnam, Poland, Roumania, the Soviet Union, the Soviet Zone of Germany and Tibet. The control of exports for strategic reasons by quantitative limitation (the former List 11) is now discontinued. Until the relevant statutory orders have been revised, the Board of Trade will issue licences for those items covered by the former control lists which are no longer embargoed. A first Order covering the simpler amendments to the current Export of Goods (Control) Orders is expected to come into force in the early days of September. A supplementary Order will follow later. This will be accompanied by an Order amending the Strategic Goods (Control) Orders, which prohibit United Kingdom firms from supplying embargoed goods to any country mentioned above from outside the United Kingdom, and by a corresponding amendment of the Open General Licence which caters for transhipment trade. General enquiries about the embargo should be addressed to the Commercial Relations and Exports Department, Board of Trade, Horse Guards Avenue, S.W.1 (Telephone: Trafalgar 8855, Ext. 7843 or 2632), or to the appropriate Production Department. Applications for export or transhipment licences should be addressed to the Export Licensing Branch, Board of Trade, Gavrelle House, 14 Bunhill Row, E.C.1 (Telephone Monarch 4071), from whom further copies of the list may be obtained, and of whom inquiry should be made in any case of doubt as to whether export licences are required.

Group A Metalworking Machinery Machines, apparatus and tools specially designed for the manufacture and testing of gas turbines, the following: Compressor case boring machines. Compressor and turbine disc turning machines. Machines and apparatus for making or measuring gas turbine blades. Rotor grinding machines. Surface broaching tools for the manufacture of gas turbine blades and discs. Machines, metalworking, not elsewhere specified, the following: Deep hole drilling machines of the kind designed to use tubular drills or bars in which the coolant passes through the drill or bar. Forging hammers, the following: Gravity hammers having a falling weight of over 10 tons. Steam, air or mechanical hammers (except counter blow hammers) of rated size over 10 tons. Counter-blow hammers of rated sizes of 180,750 foot pounds or more. Horizontal impact hammers, hydraulically actuated of 10,000 foot pounds or more. Gear-making or gear finishing machinery, the following: Gear-grinding machines, Renerating type, of 36 inches work diameter or over. Machines capable of the production of gears having a pitch finer than 0·5 module. Grinding machines, not elsewhere specified, the following: Internal grinding machines of the kinds incorporating or specially designed for the utilization of grinding heads designed or rated for operation at speeds in excess of 80,000 r.p.m. Jig grinding machines with any traversing motion (longitudinal, transverse or vertical) exceeding 44 inches. Jig boring machines with any traversing motion Oongitudinal, transverse or Tertical) exceeding 44 inches. -Machines incorporating electronic closed loop feed back controls in which a continuous feed back of information from the work piece or

tool or work piece carrier or tool-holder itself results in continuous correction of the control commands. Mil~ing machines having a travelling head or heads, capable of milling aIrcraft spars. Presses, hydraulic and mechanical, with total rated pressures of OVer 5,000 tons. . Spinning lathes designed for use with or equipped with spindle drive motor exceeding 25 h.p. Machines specially designed for the working or forming of aircraft sheet aircraft plate or aircraft extrusions. ' Machine tool parts, accessories and associated apparatus, of the follOWing descriptions : ·Electronic closed loop feed back controls for controlling machine tools in which a continuous feed back of information from the work piece or tool or work piece carrier or tool-holder itself results in continuous correction of the control commands. Grinding heads and spindle assemblies for internal grinding machines designed or rated for operation at speeds In excess of 80,000 r.p.m. ' Metal cutting and working tools for machine operations, the following: Deep hole drills or bars of the type in which a hardened steel or hard metal cutting piece is fixed into a tubular shank and the coolant passes through the drill or bar. Rolling mills, the following: (a) having the work rolls supported by multiple back-up rolls or bearings; (b) having multiple work-rolls rotating in a planetary form around the back-up rolls; (c) continuous cold strip mills, more than 3-high.

Group B Chemical and Metallurgical Plant, Compressors, Furnaces, Pumps, Valves, etc. [In this group a specified corrosion-resistant material means polytetrafluoroethylene, polytrifluorochloroethylene, or a material containing: (i) 90 per cent or more tantalum, titanium or zirconium, either separately or combined, or tii) 50 per cent. or more cobalt or molybdenum, either separately or combined.] Centrifugal counter-current solvent extractors, continuous types, specially designed for the extraction of radio-active substances. Centrifuges, with a peripheral speed of 1,000 feet per second or more, wholly made of or lined with aluminium, nickel or alloy containing 60 per cent. or more nickel; and centrifugal bowls made of these materials. Compressors and blowers, the following: (a) Compressors and blowers, (turbo, centrifugal and axial flow trP~) wholly made of or lined with aluminium, nickel or an alloy contatnmg 60 per cent. or more of nickel. . (b) Compressors and blowers, multistage, with an overall compresSion ratio of 2 : 1 or more coupled with a capacity of over 372,000 cu. ft. per minute; or an overall compression ratio of 3 : 1 or more coupled with a capacity of 106,000 cu. ft. per minute. • Containers, jacketted, including mobile units of 500 gallons capacity or over, designed for the storage or transportation of the following liquefied gases: argon, helium, hydrogen, nitrogen, oxygen, ozone. Electrolytic cells for the production of fluorine. Equipment for the production or concentration of deuterium oxide. Equipment specially designed for the conversion of dinitrogen tetroxide to nitric acid of 98 per cent. or higher concentration or for the concentration of dinitrogen tetroxide or nitric oxides or mixtures thereof. -Equipment specially designed for the purification and processing of germanium, other than equipment for zone purification. -Equipment specially designed for the purification and processing of silicon. Equipment specially designed for the separation of isotypes of uranium. -Furnaces, electric, specially designed for the recovery of titanium or zirconium from scrap. f Furnaces, vacuum, designed to operate at pressures.lower than 0·1 mm. 0 mercury and at temperatures higher than 1100°C. Gas liquefying equipment, the following: Equipment for the separation of helium from natural gases; • 'on Equipment, not elsewhere specified, specially designed for the product~ g of gases in liquid form, capable of operating at pressures of 300 p.S.l..

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and over and producing one ton or more per day of gas in liquid form,

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other than: (a) Plants not capable of producing more than 2S per cent. of their total daily product as extractable gas in liquid form. (b) Plants specially designed for liquefying chlorine and ammonia. (c) Stationary equipment for liquefying carbon dioxide. (cl) Equipment for liquefying low molecular weight refinery gases. Liquid fluorine producing equipment. Heat exchangers (tubular) and parts therefor, other than aluminium tubing, designed to operate at pressures of 300 p.s.i.g. and above and having all parts in contact with the flow made of or lined with anyone or more of the following materials: aluminium, nickel, titanium, zirconium, or alloy containing 60 per cent. or more nickel. Pipe and tubing made of or lined with polytetrafluoroethylene or polytrifluorochloroethylene. Pi~"valves, cocks and t>ressure regulators as follows: (a) having all parts in contact with the flow made of or lined with a specified corrosion-resistant material, or (b) specially designed for operation at temperatures below -130°C. Plant for the production of military explosives and parts specially designed therefor, including nitrators, continuous types. Plant for the production of titanium metal (other than separate plant for the production of titanium tetrachloride) and parts spe-cially designed therefore 'plant for the production of zirconium metal (other than separate plant for the production of zirconium tetrachloride) and parts specially designed therefor. PumPS (other than vacuum pumps) capable of delivering liquids separately or in combination with solids or gases or solids and gases and, (a) designed to move molten metals by electromagnetic forces, or (b) with all parts in contact with the flow made of or lined with a specified corrosion-resistant material, or (c) specially designed for operation at temperatures below -130°C. Vacuum diffusion pumps having a diameter, measured inside the barrel at the inlet jet, of 12 inches or greater, or capable!of pumping speed in excess of 1,500 litres per second at a pressure of less than 0·001 mm of mercury. Valves. with bellows seal, wholly made of or lined with aluminium, nickel 01· alloy containing 60 per cent. or more nickel, either manually or automatically operated.

Group C Diesel Engines and Electric Generators ~ompression

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ignition (Diesel) engines capable of developing 50 b.h.p.

and over and having a non-magnetic content exceeding 50 per cent.

Electric generators, mobile types, with a maximum continuous rating of more than 5,000 kilowatts.

Group D Miscellaneous Goods and Machinery Apparatus for automatically sorting electronic components in respect of their electrical characteristics. Artificial graphite in the form of blocks or rods from which a cube of 2 inches side can be cut and having a boron content of one part per million or less. Ball or roller bearings, and parts thereof, the following: (a) Ball and cylindrical roller bearings, (other than separable (magneto type) ball bearings and ball thrust bearings) manufactured to tolerances as shown in Tables 1 and 2 below or closer, and possessing one or more of the following characteristics: (1) made of any material other than: (i) low carbon steel containing not more than 0·4 per cent_ of carbon and no other elements except those present as impurities or in such low quantities as not to modify the basic character· iSlics of the steel. (ii) high carbon chromium steel type En 31 as specified in British Standard for Wrought Steels B.S. 970 : 1947 as amended; or equivalent types normally used in the manufacture of ball or roller bearings. (iii) nickel-molybdenum steel type En 34 as specified in British Standard for Wrought Steels B.B. 970 : 1947 as amended; or equivalent types nonnally used in the manufacture of ball or roller bearings. (2) processed by heat treatment for the purpose of stabilizing them for use at normal operation temperatures over 150°C. (302°F.). (3) having special low torque or quiet running performance beyond those required for industrial purposes, to provide a superior operating performance for military purposes. (4) specially designed for use in military equipment and differing substantially in design from normal bearings in order to provide a superior operating performance. (b) Tapered roller, spherical roller and thrust roller bearings having an inner ring bore diameter measuring more than 400 mm. (15·75 inches). (c) Parts of ball or roller bearings, the following: Outer rings, inner rings, retainers, balls, rollers and sub-assemblies useable only for the bearings described in (a) and (b) above. Construction equipment built to military specifications, specially designed for airborne transportation. Crucibles, moulds and pouring rods composed of 97 per cent. or more by weight of beryllium oxide, magnesium oxide or zirconium oxide or

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of their total weight:

1. INNER RING BORE SIZES

Inch type . Metric type

'fatal bore tolerance . (inches) Eccentricity. . . (inches) Parallelism of races . (inches) Wobble or parallelism of track to faces . (inches)

Over 0 including 2 in. Over 0 including 50 mm.

Over 2 Over 3 Over 5 Over 7 including 3 in. including 5 in. including 7 in. including lOin. Over 50 Over 80 Over 120 Over 180 including 80 mm. including 120 mm. including 180 mm. including 250 mm.

Over 10 in. Over 250 mm.

·0002 ·0002 ·0002

·0003 ·0002 ·0002

·0003 ·0003 ·0003

·0004 -0003 ·0003

·0005

·0005

·0004

·0005

·0003

-0003

·0004

·0004

·0005

·0006

-0004

O()()()5

2. OUTER RING

-

OUTSIDE DIAMETER SIZE.~

Inch type . Metric type

-

Total outside tolerance ¢ricity : Parallelism of races

Over 2 including 3 in. Over 50 including

Over 5 including 6 in. Over 120 including

Over 6 including 7 in. Over 150 including

50 mm.

Over 3 including 5 in. Over 80 including

80 mm.

120 mm.

150 mm.

·0002 ·0002 ·0002

1XlO3 ·0003 ·0002

·0003

-0003

·0004

I

10 in.

Over 10 including 12 in. Over 250 including

Over 12 including 16 in. Over 315 including

180 mm.

250 mm.

315 mm.

400 mm.

·0003

·0004 ·0004 ·0003

·0005 ·0005 ·0003

-0005 -0005 ·0004

·0005 ·0006 ·0005

·0006 -0007 -0005

·0007 ·0008 ·0006

'()()()5

·0005

·0006

-0006

·0007

·0008

·0009

Over 7 including Over 180 inclJding

Over 16 in. Over 40 mm.

diameter . .

(inches) (inches) . (inches)

Wobble or parallelism of track to faces . • (inches)

--

Over 0 including 2 in. Over 0 including

·0004

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composed of zirconium oxide stabilized with calcium carbide or magnesium oxide or with calcium carbide and magnesium oxide. Machines and apparatus for the manufacture and testing of electronic valves, the following: (a) Machines and apparatus specially designed for the manufacture and testing of the kinds of electronic valves, transistors and crystal diodes, tincluding components and sub-assemblies therefor) described in Group F. (b) Machines and apparatus specially designed for the automatic or semiautomatic assembly or testing of electronic valves, transistors and crystal diodes (including components and sub-assemblies therefor). Machines and apparatus of the kind used for making telecommunications cables, the following: (a) Machines of the kind specially designed for the manufacture of multipair electric cables for telecommunications purposes: (1) Machines of the kind used for applying insulating material to conductors ; (2) Machines of the kind used for laying conductors together or for applying an insulating, separating, binding or identifying material thereto. (b) Machines of the kind specially designed for the manufacture of coaxial electric cables: (a) Machines of the kind used for applying insulating separators to the inner conductor of air-spaced coaxial electric cables; (b) Machines of the kind used for applying metal strip or sheet to form tne outer conductor of coaxial electric cables. (c) Machines of the kind used for laying up or stranding conductors, pairs, quads, multiple units thereof, or coaxial tubes, to form complete cable covers or parts thereof. (d) Automatic apparatus for controlling the diameter or the eccentricity of extruded dielectric on wires and cables. Printed circuit equipment, the following: Equipment specially designed to produce electronic assemblies: (a) by depositing or printing on insulating panels including plates or wafers, or otherwise forming in situ, component parts other than basic wiring; (b) by automatically inserting or soldering components on insulating panels including plates or wafers, to which wiring is applied by printing or other means. Rock drill bits, rotary type (Le. of a kind having cones or sections which rotate separately and independently of the rotation of the body of the bit).

Group E Transport Air<"raft, aero-engines and aircraft equipment, as follows: (a) aircraft and aero-engines therefor, not elsewhere specified, except those which do not contain or incorporate any of the goods specified in Group K and (1) are of types and series which have been in normal civil use for more than 2 vears or \2) being of types in normal civil use are less than 90,000 pounds empty weight (including normal minimum crew and normal installations, but excluding fuel and payload) (b) grnund and airborne equipment not elsewhere specified, developed solely or used mainly for aircraft, other than ground or airborne equipment of types in normal civil use. Compas~es and gyroscopic equipment, the following: (a) gyro compasses, North-seeking only, possessing one or more of the following characteristics: (1) automatic correction for the effects on compass accuracy of changes in ship's speed, acceleration, or latitude, other than manuaUy set mechanical corrective devices; (2) pro"ision for accepting ship's data as an electrical input; (3) provision for setting in corrections for current set and drift; (4) utilisation of accelerometer, rate gyro, rate integrating gyros, or electrolytic levels as sensing devices; (5) provisions for determining and electrically transmitting ships level reference data (roll, pitch) in addition to own ship's course data; (b) pressure proof ship's course indicators for submarines; (c) transmitting magnetic compasses specially designed for submarines; (d) gyro magnetic compasses; (e) gyro stabilisers, except those for stabilising an entire surface vessel; (f) automatic pilots, except marine types for surface vessels; (g) gyroscopes of very high precision and miniaturized gyroscopes designed for use in ship inertia navigation systems or in the guidance systems of weapons and military aircraft; (h) specially designed parts and components for the above. Marine steam boilers designed to operate at temperatures of 1,100°F. and above.

Mechanically propelled vehicles, tractors and lift trucks, not elseWh specified, possessing or built to current military specifications differinre materially from their normal civilian specifications. g Ships, the following: (a) Fishing vessels, and hulls therefor, designed for speeds of 17 knots or over when in full load (design) condition; (b) Tan~e~s capable of speeds above 18 knots when in full load (design) condItIon; , (c) Vessels, seagoing (including coasters), not elsewhere specified and hulls therefor, designed for speeds of 20 knots or over when i~ full load (design) condition; (d) Icebreakers of 10,000 shaft horse-power and over; (e) Warships, whether or not converted to civilian use, and regardless of their state of repair or operating condition; and hulls or parts of hulls for such vessels; (f) Vessels with h~lls and I:ropulsion machinery made wholly or primarily of non-magnetIc matenals; (g) New vessels, with decks or platforms specially designed and strengthened to receive weapons. [Note. The Admiralty or the Ministry of Transport and Civil Aviation as appropriate, should be consulted ahout any vessels which contain any embargoed items or have arrangements for demagnetisation.]

Group F Electronic Equipment including Communications and Radar Amplifiers, not elsewhere specified, the following: (a) Amplifiers designed to operate at frequencies in excess of 300 mega. cycles per second; (b) Amplifiers, tuned, having a bandwidth which exceeds 10 megacycles per second or 10 per cent. of the mean frequency, whichever is less. ['Bandwidth' is defined as the band of frequencies over which the power amplification does not drop to less than one-half of its maximum value. 'Mean Frequency' is defined as the arithmetic mean between the frequencies at which the power amplification is one-half of its maximum value.] (c) Amplifiers, untuned, having a bandwidth, as defined above, which exceeds 10 megacycles per second; (d) Amplifiers, direct current, having a noise level (referred to the input circuit) of 10- watts or less and/or a zero drift in 1 hourcorresponding to a change in input power of 10- ill watts or less. Apparatus designed to jam or otherwise interfere with radio reception, and parts specially designed therefore Apparatus of a kind used for detecting or locating objects under water by magnetic, acoustic or ultrasonic methods, and specialised components of such apparatus, except marine depth sounders of a kind used solely for measuring the depth of water or the distance of submerged objects vertically below the apparatus. [Note. The Export Licensing Branch will consider applications for licences for horizontally-operating apparatus for fish-finding. ] Cables, electric, buoyant types, suitable for sweeping magnetic mines. Cables, coaxial type (including submarine types) specially designed for telecommunications and radar purposes, except those specially designed or in common use for domestic radio and television receivers. • Capacitors, tantalum electrolytic, not elsewhere specified. Communications cable (including submarine cable) of any type containing more than one pair of conductors and containing any conductor (single or stranded) exceeding 0·9 millimetre in diameter. [Note. The Export Licensing Branch will consider applications fDJ' licences for cables having the following characteristics: (a) Cable containing not more than two pairs of conductors. . (b) Cable containing any conductor, single or stranded, not exceedIng 1·4 millimetres in diameter.] Communication and detection equipm~nt of a kind using infra-red radiation or ultrasonic waves, and specialized parts therefore ·Communication equipment employing tropospheric or meteoric scatter phenomena and specially designed sub-assemblies, parts and test equipment therefore Communication, navigation, direction finding and radar equipment, not elsewhere specified, as follows: (a) Airborne communication equipment and specialized parts and com· ponents therefore [Note. The Export Licensing Branch will consider applications fC)r licences for commercial airborne equipment containing none of the following characteristics: (1) Designed to operate at frequencies greater than 156 megacycles per second; " (2) Designed for single side band operation; J.O

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(3) Incorporating facilities for the rapid selection of more than 50 channels per equipment; (4) Incorporating facilities for providing a multiplicity of alternative output carrier frequencies controlled by a lesser number of piezo-electric crystals and not forming multiples of a common control frequency; (5) Pressurized by any method; (6) Rated for operation over a range of ambient temperatures extending from below -45°C. to above +75°C.] (b) Airborne navigation equipment and direction finding equipment as follows: (1) Designed to make use of Doppler frequency phenomena; (2) Utilizing the constant velocity and/or the rectilinear propagation characteristics of electromagnetic waves having frequency less than 4 X 1014 cycles per second (0·75 microns). [Note. The Export Licensing Branch will consider applications for licences for commercial airborne equipment provided that such equipments are not designed to make use of hyperbolic grids based on the constant velocity and/or the rectilinear propagation characteristics of electromagnetic waves of frequencies greater than 3 megacycles per second.] (3) Pulse modulated altimeters; (4) Direction finding equipment operating at frequencies greater than 5 megacycles per second; (c) Airborne radar equipment; (d) Ground and marine radar equipment, as follows: (1) Radar equipment, not elsewhere specified, other than those normal equipments designed for pulse operation at frequencies between 1,300 megacycles per second and 1,660 megacycles per second, 2,700 megacycles per second and 3,900 megacycles per second, or 8,500 megacycles per second and 10,000 megacycles per second, having in the case of marine radar, a peak output power to the aerial system .less than 50 kilowatts or, in the case of groundbased radar, having a peak output power to the aerial system less than 50 kilowatts and a range less than 50 nautical miles (the 50 nautical miles range is intended to refer to the maximum usable range on the largest size heavier-than-air target); (2) Radar equipment incorporating permanent echo cancellation facilities and/or aerials ·with circular polarization; (3) Radar equipment utilizing other than conventional pulse modulation and signal processing techniques; (4) Ground direction finding equipment operating at frequencies greater than 5 megacycles per second; (e) Ground and marine equipment for use with airborne navigation equipment utilizing the constant velocity and/or the rectilinear propagation characteristics of electromagnetic waves having frequency less than 4 X 101~ cycles per second (0·75 microns); [Note. The Export Licensing Branch will consider applications for licences for equipment which is not designed to make use of hyperbolic grids based on the constant velocity and/or the rectilinear propagation characteristics of electromagnetic waves of frequencies greater than 3'0 megacycles per second.] (f) Specialized parts, specialized accessories and specialized testing or calibrating equipment, not elsewhere specified, for the apparatus listed in (b) to (e) above. 'Components, electronic, not elsewhere specified, capable of reliable performance in relation to their electrical and mechanical characteristics and maintaining their design service life-time while operating: (a) over the whole range of ambient temperatures extending from belo,,' -45°C. to above +100°C.; or (b) at ambient temperatures of 200°C. or higher. Condenser tissue, that is, synthetic film for dielectric use, of 0 ·0015 inch (0'038 millimetre) or less in thickness. Crystal signal diodes (excluding photodiodes) and parts specially designed therefor, the following: (a) Point contact type diodes suitable for use at frequencies higher than 300 megacycles per second; (b) Junction type diodes, in which the basic semiconductor material is other than germanium; (c) Junction type diodes, in which the basic semiconductor material is germanium, and which are suitable for use at frequencies higher than 50 megacycles per second; Electric-impulse generators of a kind used for providing recurring impulses of peak power exceeding 150 kilowatts or of a duration of less than 1/10th microsecond, and pulse transformer and pulse forming equipment, and delay lines being parts specially designed for such modulators. E1ect)romagnetic waveguides ~nd components therefor, as follows: (a: F~rrite waveguide components for use at all frequencies; (h) Rigid waveguides for use at frequencies in excess of 12,500 megacycles per second. (r) Flexible w~veguides of all types.

Electronic and precision instruments and apparatus, not elsewhere specified. the following: (a) Electronic instruments, the following: (1) Frequency measuring equipment and frequency standards with an accuracy better than 0 ·00001 per cent. (2) Those operating at frequencies exceeding 300 megacycles per second. (b) Oscilloscopes (cathode-ray) and specialized parts therefor, as follows: (1) Oscilloscopes possessing any of the following characteristics: (i) a bandwidth greater than 12 megacycles per second (defined as the band of frequencies over which the deflection on the. cathode ray tube does not fall below 70·7 per cent. of that at the maxioUffi point, measured with a constant input voltage to the amplifier); (ii) a time base shorter than 0·04 microseconds per centimetre; (iii) containing or designed for: (a) the use of one or more cathode ray tubes having three or more electron guns or (b) three or more cathode ray tubes; (iv) employing accelerating potentials in excess of 5,000 volts; (2) Specialized parts and accessories as follows: Amplifiers and pre-amplifiers having a bandwidth (defined in (1) (i) above) greater than 12 megacycles per second. Electronic vacuum tubes or valves of the following descriptions: (a) (1) Cathode ray tubes specially designed or in use for radar equipment described above (see 'Communication, navigation, direction finding and radar equipment'); (2) Cathode ray tubes with'writingspeeds of more than 3,000 kilometres per second; (3) With three or more electron guns; (b) Thyratron and modulator gas-discharge tubes, as follows: (1) Those rated for continuous operation with peak current and peak voltage exceeding 100 amperes and 9,000 volts at a pulse repetition frequency of 200 or more pulses per second; (2) I1ydrogen thyratrons of any rating. [Note. A thyratron is defined as any hot cathode gas filled tube containing three or more electrodes in ,vhich anode current flow is initiated by a control electrode.] (c) Valves whose output-input ratio at 300 megacycles per second is 50 per cent. or more of the output-input ratio at 20 megacycles per second when measured under the same operating voltages and load impedance; (d) Valves of a kind specially designed for use at frequencies of more than 300 megacycles per second; (e) Indirectly heated valves of a kind that can be passed through a circular hole 7·2 millimetres in diameter. (f) Valves designed to withstand (i) sinusoidal vibration of greater th... 2 g for continuous periods in excess of 20 hours at frequencies between 25 and 170 cycles per second, or to withstand (ii) acceleration of short duration (shock) greater than 1,000 g; (g) Valves constructed with a ceramic envelope. (h) Valves designed for operation in ambient temperatures exceed.inl 100 oe. (i) Amplifier klystrons; (D Travelling wave tubes; (k) Image converters and electronic storage tubes including memol"J transformers of radar pictures and ruggedized photo-conductive-type tubes (excluding commercial standard television broadcasting camera tubes and commercial standard X-ray amplifier tubes). (I) Photo-cells as follows: (1) Photo-electric cells, photo-conductive cells (including photo-transistors and similar cells) with a peak sensitivity at a wavelength longer than 12,000 Angstrom units; (2) Photo-transistors (photo-conductive cells including photo-diodes) with a response time constant of 1 milli-second or less measured at the operating temperature of the cell for which the time constant reaches the minimum. (m) Photo-multiplier tubes: (i) with all the following characteristics for a colour temperature of 2,350 degrees Kelvin: sensitivity exceeding the figure of 60 microamperes per lumen, overall gain for a mean output current of 1 milIiampere exceeding 108 , dark current plus noise less than 5 X 10-18 ampere mean per square centimetre of active cathode surface; (ii) Photo-multiplier tubes of all types for which the maximum sensitivity occurs at wavelengths longer than 7,500 Angstrom units; (n) X-ray tubes, flash discharge types. *'Equipment designed to provide secrecy facilities on either voice or telegraph, line or radio communication circuits other than those systems making use of frequency inversions or band scrambling techniques. Line communic~.tion transmission equipment, the following: (a) Terminal 2.nd intermediate repeater or amplifier equipment designed

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15 August 1958

(ContiffUed)

to deliver, carry or receive frequencies higher than 16 kilocycles per second into, or in, a line communication system; (b) Multi-channel telegraph terminal transmitting and receiving equipment; (c) Specialized components, accessories, and sub-assemblies for the above equipment. [Note. The Export Licensing Branch will consider applications for licences for equipment having the following characteristics: (a) Terminal and intermediate repeater or amplifier equipment designed to deliver, carry, or receive not more than 60 voice channels of 4 kilocycles per second each; (b) Multi-channel telegraph terminal transmitting or receiving equipment transmitting or receiving not more than 6 channels and/or designed for a speed not exceeding 200 words per minute or 150 bauds, whichever is the less (excepting equipment operating at a speed of 300 bauds where the corresponding number of words does not exceed 65 words per minute); (c) Specialized components, accessories, and sub-assemblies for the above equipment.] -Materials designed and manufactured for use as absorbers of electromagnetic waves having frequencies greater than 2 X 108 cycles per second, and less than 3 X 1012 cycles per second. Piezo-electric quartz crystals, blanks, plates, bars and rods, worked or unworked, mounted or unmounted. Radio receivers, panoramic, being receivers which search automatically a part of the radio frequency spectrum and indicate the signals received, and parts specially designed for such receivers; Radio relay communications equipment and specialized components and sub-assemblies therefor, other than short range and low power links for transmissions between camera or studio and the television transmitter. Radio spectrum analysers, being apparatus capable of indicating the singlefrequency components of multi-frequency oscillations, designed to operate at frequencies in excess of 300 megacycles per second; and parts specially designed therefor. Radio transmitters and components, not elsewhere specified in this Group, the following: (a) Transmitters or transmitter amplifiers designed to operate: (1) at output carrier frequencies between 108 and 156 megacycles per second; [Note. The Export Licensing Branch will consider applications for licences for equipment containing none of the characteristics mentioned under sub-item (b).] (2) At output carrier frequencies greater than 223 megacycles per second other than television broadcasting transmitters and amplifiers therefor operating between 470 and 585 megacycles per second or between 610 and 940 megacycles per second; (b) Transmitters or transmitter amplifiers designed to provide any of the following features: (1) Any system of pulse modulation (this does not include amplitude, frequency, or pulse modulated television); (2) Special facilities to give continuous operation (on any carrier frequency outside the internationally agreed broadcasting bands) in inter-connection with land-line telephone circuits or switchboards, e.g. voice-operated gain-adjusting circuits, automatic volume compression and expansion circuits, and automatic monitoring; (3) Rapid selection of more than 20 channels; (4) Rated for operation over a range of ambient temperatures extending from below --45°C. to above +75°C. ; (5) Facilities providing a multiplicity of alternative output carrier frequencies controlled by a lesser number of piezo-electric crystals and not fonning multiples of a common control frequency; (c) Components and sub-assemblies, including modulators and modulation amplifiers, specially designed for use in transmitters covered by sub-items (a) and (b). Telegraph apparatus designed for the transnlission or reception of messages at a speed exceeding 200 words per minute or 150 bauds, whichever is the less; (excepting equipment operating at a speed of 300 bauds where the corresponding number of words does not exceed 65 words per minute); and parts and accessories specially designed therefor; Transistors and related devices (or related semi-conductor amplifying devices such as fieldistors, spacistors and technetrons) and specialized parts therefor, the following: (a) of any type using a basic semi-conductor material other than germanium; (b) having any of the following characteristics: (1) designed to be capable of operation at alpha cut-off frequencies greater than 20 megacycles per second; (2) designed to have a collector dissipation in excess of 100 milIiwatts at alpha cut-off frequencies greater than 500 kilocycles per second;

(3) designed to operate with collector voltages greater than .i-() Yolts. (4) designed to operate with mean collector currents g'reater thQ 3 amperes.

Group G Scientific Instruments and Apparatus, Servomechanisnts and Photographic Equipment Acceleration tubes and focusing tubes of the kinds used in mass sPectrometera or mass spectrographs. Balances of a sensitivity of 0·1 microgram or better. Cent:i~gal Testing Apparatus possessing any of the following character. IStICS: (a) driven by a motor or motors having a total rated horsepower greater than 400 h.p.; (b) capable of carrying a load of 250 Ibs. or more; (c) capable of exerting a centrifugal acceleration of 8 or more 'g' 0Il a load of 200 Ibs. or more. Computors, electronic, other than business type nlachines, accountinc machines and statistical calculating machines. Control equipment, the following: (a) Synchros, as follows: (1) Control types (transmItters, differential transmitters and transformers) rated to have an electrical error of 18 minutes or lees when tested by the proportional voltage method); (2) Torque types: (i) Transmitters and differential transmitters rated to have aa electrical error of 18 minutes or less when tested by the pro. portional voltage method; (ii) Receivers and differential receivers rated to have an accuracy of 1·5 degrees or less when tested by the dynamic method. (b) Resolvers, including single-phase/single-phase, single-phase/two-plwe, two-phase/rn'o-phase, and three-phase/two-phase types as follows: (1) With a rated electrical error of 0·5 degree or less; (2) With a rated perpendicularity error between axes of 10 minutes or less; (3) With a rated null voltage of 10 millivolts or less per maximum volt output. (c) Amplifiers, electronic or magnetic, designed for use with resolyers, the following: (1) Isolation types; (2) Summing types. (d) Linear induction potentiometers, as follows: (1) With a rated linearity of 1 per cent. or less; (2) With a rated null voltage of 10 miIlivolts or less per maximum volt output. (e) Induction rate generators, as follows: (1) With a rated linearity of 1 per cent. or less; (2) With a rated signal-to-noise ratio of 50/1 or greater; (3) All temperature-compensated or temperature-corrected types. (f) Servo motors (gear-head or plain), as follows: (1) Designed to operate from power sources of more than 300 cycles per second; (2) Designed to have a torque-to-inertia ratio of 3,500 radians per second per second or greater. (g) Potentiometers, as follows: (1) Linear potentiometers with a rated linearity of 0'1 per cent. or less; (2) Non-linear potentiometers with a rated confonnity of t per cent. or less. Cyclotron, belt-type electrostatic generators (Van de Graft' machines), synchro-cyc1otrons, betatrons, synchrotons, linear accelerators and other electronuclear machines capable of imparting energies greater than 1,000,000 electron volts to a nuclear particle or an ion (except 8uc.h electronuclear machines specially designed for use in medical diagnOSli and therapy); and magnets specially designed for such electronuckat machines. Fluorimeters of the kinds in which ultra-violet light is used as the exci~ source and photomultiplier tubes or photo-cells are used as the detedlDI or amplifying devices. Ion microscopes having a resolving power better than 10 Angstrom unite. Ion separators, electro-magnetic, including mass spectrographs and spectrometers. Leak-detecting instruments of the mass spectrometer type. Magnetic recorders or reproducers (other than those designed fCV' voice or music) and parts and recording media specially designed therefor.

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319.

(;oods Subject to Embargo (COfttimud) Magnetometers of the following types: (a) Fluxgate; . (b) Electron beam sensmg; (c) Paramagnetic (i.e. in which changes in magnetic field strength are sensed by measurement of the effects of such changes in the electron spin phenomena); (d) Nucleonic; and parts specially designed therefore Measurin~ a,nd counting apparatus, not elsewhere specified, of following descnptlons: (a) Time interval measuring equipment with self-contained reference frequency, having one or both of the following characteristics: (1) capable of measuring time intervals of one-tenth second or less with an error not exceeding 1 micro-second plus 0·001 per cent. of the interval measured; (2) incorporating counting circuits capable of counting at rates in excess of 1 megacycle per second; (b) Counting equipment capable of counting at rates in excess of 1 megacycle per second. Photographic apparatus, the following: (1) High speed cameras capable of recording at rates in excess of 250)000 frames per second. (2) High speed cinematograph cameras as follows: (a) Cinematograph cameras employing film of a width of 35 mm. or less, capable of recording at rates in excess of 3,000 frames per second using as the lighting source a steady light flo\v; (b) Cinematograph cameras employing film of a width of 35 mm. or less, capable of recording at rates in excess of 10,000 frames per second using as the lighting source flash apparatus connected to the unwinding system; (c) Cinematograph cameras employing film wider than 35 mm. and capable of recording at rates exceeding 64 frames per second. (3) Photographic microflash apparatus capable of giving a flash of 1/100,000 second or shorter duration at a minimum recurrent frequency of 200 flashes per second. Positive-ion sources suitable for use in cyclotrons, mass spectrometers and the like. Ra
Group H Metals, Minerals and Metal Manufactures Boron element (metal), and alloys containing by weight 10 per cent. or more of boron, in all forms. Boron minerals, crude and refined. FeFrro~alloys whether briquetted or not, the following: erro-boron · Ferro-niobi~ · Ferro-niobium:tantalum . Ferro-molybdenum: '

Ferro...tantalum; Ferro-uranium. Fissionable materials, the following: plutonium, uranium enriched in the isotope 233 or in the isotope 235, and materials artificially enriched by any of the foregoing. Lithium metal. Lithium ores and concentrates. Magnetic materials in any form having: (i) initial permeability 50,000 or over; or (H) remanance 98 per cent. of maximum flux or over; or (iii) a composition capable of an energy product (as measured whcto using a properly heat-treated test bar) greater than 6 X 10' pussesj oersteds, or containing more than 25 per cent. cobalt; or (iv) core loss of 0'45 watt per lb. when B equals 13)000 gausaes at SO cycles per second or less, for silicon steels; or when they are in the form of sheet or strip, a thickness of 0·0004 in. or less. Mercury. Metals in the form of angles, anodes) bars (including busbars, notched bars, sheet bars and wire bars), billets, blocks, blooms, cakes, castings and forgings, cathodes, channels, circles, discs, dust, flakes, foil, grains, granules, ingots, ingot bars, lumps, pellets, pigs, pipes) plates, powder, pressings and stampings, ribbons, rods (including welding electrodes and rods, wire rods and rolled wire), sections, shapes, sheets, shot, slabs, sticks, strip, sponge, tubes (including tube rounds, sqUare& and hollows), wire (drawn or extruded, bare, whether stranded or not, including cables, ropes and spirals), as follows: Alloy steels containing by weight 50 per cent. or more of iron or steel and one or more of the following constituents: (a) 10 per cent. or more of molybdenum; (b) 5 per cent. or more of molybdenum and more than 14 per cent. of chromium; (c) 6 per cent. or more of cobalt, except permanent magnetic materials with a cobalt content of 25 per cent. or less; , (d) 1·5 per cent. or more of niobium or tantalum; (e) 35 per cent. or more of nickel; (f) 35 per cent. or more of alloying elements (other than iron) one of which is nickel; (g) Precipitation hardening steels containing 4 per cent. or more of nickel. Beryllium and alloys containing by weight more than 50 per cent. of beryllium, other than windows for medical X-ray machines. Cobalt (including scrap). Germanium of a resistivity of 50 ohms per centimetre, or more. Magnesium alloys containing by weight one or more of the following constituents: (a) 0·4 per cent. or more of zirconium; (b) 1 .5 per cent. or more of thorium; (c) 1·0 per cent. or more of cerium mischmetall. Molybdenum and alloys, not elsewhere specified, containing by weight 20 per cent. or more of molybdenum, except cleaned wire with a diameter not more than 500 microns and which, after being fully annealed, has an elongation factor not more than 5 per cent. for diameters up to 200 microns and not more than 10 per cent. for diameters from 200 to 500 microns. Nickel based alloys containing by weight 32 per cent. or more of nickel. Niobium and alloys containing by weight 50 per cent. or more of niobium. Tantalum. [Note: The Export Licensing Branch will consider applications for licences in respect of surgical forms of the metal.] Titanium and alloys containing by weight 50 per cent. or more of titanium. Thorium and alloys containing by weight t· 5 per cent. or more of thorium. Uranium and alloys containing uranium. Minerals, raw and treated, and residues, slag and tailings thereof, which contain by weight 0 '05 per cent. or more of uranium or thorium or any combination thereof, including: Carnotite, pitchblende and monazite sand and other orea containing uranium or thorium. Ores and concentrates, the following: Beryllium (other than gem grade beryl); Cobalt (including residue and arsenical crystals); Nickel (including primary residues and matte); Niobium; Tantalum. Platinum clad molybdenum pipes and tubing. Silicon of a purity of 99·9 per cent. or more. Tungsten wirt' and filament, as follows: (a) Tungsten wire and cut coils, coated; (b) Tungsten wire in cut coils, uncoated, other thatl: (1) coiled coil filaments;

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320,

~OARP

Goods Subject to Embargo

OF

TRADE

JOURNAL

15 August 1958

(Continutcl)

(2) single coil lamp filaments with any of the following characteristics: (i) being set or sintered; (li) having a diameter of 19 microns or less; (ill) having a diameter of 250 microns or more and a length not exceeding 100 mm. (c) Tungsten wire, uncoated, other than wire of a diameter less than 600 microns, having a tensile strength of not more than 35 grammes per milligramme (140 kg. per square mm.) (the test to be carried out on wire previously drawn to 180 microns or less and heated for 10 minutes in a hydrogen atmosphere at 2,100°C.). Woven wire mesh composed of wire containing 95 per cent. or more of . nickel and containing 60 or more wires per linear centimetre. Zirconium metal and alloys containing by weight more than 50 per cent. zirconium, in which the ratio of hafnium content to zirconium content is less than one part to 500 parts by weight, and manufactures wholly thereof.

Group I Chemicals, Plastics and Synthetic Rubbers Alkyl polysulphide liquid polYmers (other than water dispersions). Boron compounds and mixtures, not elsewhere specified, the following: (a) Boric acid and the ammonium, calcium, !I1a~esium, potas~ium ~nd sodium salts thereof, and esters of borIC aCId, but not IncludIng perborates; (b) Boric oxide; (c) Boron trichloride and its complexes; (d) Boron trifluoride and its complexes; (e) Fluoroborates; (f) Other boron compounds and mixtures containing by weight an aggregate of 10 per cent. or more of boron, whether in combined or elemental (metallic) forms, but excluding: metal borates other than those specified at (a) above; perborates. Bromine trifluoride. Chlorine trifluoride. Compounds of uranium or thorium other than medicinal preparations. Compounds, the following: Beryllium. Cobalt, other than paint driers, organic artificial colouring matters and paint pigments. Germanium, having a resistivity of 50 ohms per centimetre or more. Molybdenum disulphide, of a purity not less than 86 per cent. Tantalum. Zirconium in which the ratio of hafnium content to zirconium content is less than 1 part to 500 parts by weight. Deuterium and compounds, mixtures and solutions containing deuterium, including heavy water and heavy paraffin, in which the ratio of deuterium atoms to hydrogen atoms exceeds 1 :5,000 by number. Diethylene triamine. Fluorinated hydrocarbons, the following: Monochlorotrifluoromethane; Dichloromonofluoromethane; Monochlorodifluoromethane; Trichlorotrifluoroethane; Dichlorotetrafluoroethane; Trichlorodifluoroethane; Difluoroethane; Monochlorodifluoroethane. Fluorinated silicone rubbers and other fluorinated elastomeric materials, and such organic intermediates for their manufacture as contain tOper cent. or more of combined fluorine. Fluorine. Guanidine nitrate. Hydrazine hydrate, unsymmetrical dimethyl hydrazine. Hydrogen peroxide solutions containing by weight 50 per cent. or more hydrogen peroxide. Lead thiocyanate. Lithium compounds. Materials, suitable for use in refractories, composed of 97 per cent. or more by weight of beryllium oxide, magnesium oxide or zirconium oxide, or composed of zirconium oxide stabilized with calcium carbide or magnesium oxide or calcium carbide and magnesium oxide. Picric acid. S odium azide.

Silicone fluids and greases, the following: Halogenated silicone fluids; Lubricating greases capable of operating at temperatures of 180 0 C 0 higher and having a drop point to 220°C. or higher. . r Stabilizers for explosives, the following: Ethyl and methyl centralites; Diphenylamine; NN-diphenylurea (unsymmetrical diphenylurea); Methyl-NN-diphenylurea (methyl unsymmetrical diphenylurea); Ethyl-NN-diphenylurea (ethyl unsymmetrical diphenylurea); Ethyl phenyl urethane; Diphenyl urethane; Diortho tolyl-urethane; 2-Nitrodiphenylamine; p-NitromethyIaniline. Tetrafluoroethylene, polytetrafluoroethylene and manufactures wholly thereof. Trifluorochloroethylene, polytrifluorochloroethylene and manufactures wholly thereof.

Group

J

Petroleum Products, Lubricants and Hydraulic Fluids (see also Group I) Fuels for aircraft turbine engines, the following: (a) Wide cut gasoline types; (b) Kerosene types having a freezing point below -76°F. (-60°C.); (c) High flash kerosene types having a minimum flash point of 140°F. (60°C.); (d) Any liquid fuel, including petroleum, which contains high energy components or compounds thereof, having a gross calorific value.of not less than 23,400 B.Th.lT./Ib. High octane blending agents for aircraft fuels, the following: (a) Alk)'lates, aviation grade; (b) I sopentane; (c) N eohexane. Hydraulic fluids, petroleum based, having a kinematic viscosity of 4·6 centistokes or greater at 210°F. (9S·9°C.) and a pour point of -30°F. (-34·4°C.) or lower and a viscosity index of 130 or higher. Hydraulic fluids, synthetic, having a viscosity of not more than 4,000 centistokes· at -65 ·2°F. (-54°C.) and not less than 1'5 centistokes at +302°F. (+150°C.). Lubricating oils and greases) synthetic (ester type), being, or containing: (a) Esters of dibasic asturated aliphatic acids combined with saturated aliphatic monohydric alcohols, where both of the two constituents contain six or more carbon atoms; (b) Esters of dibasic saturated aliphatic acids combined with polyglycols, when one or both of the two constituents contain six or more carbon atoms; (c) Fluoro-alcohoI esters; other than oils and greases containing not less than 50 per cent. by weight of neutral castor oil or not less than 50 per cent. by weight of castor oil and petroleum oil together.

Group K Arms, Munitions, Military Equipment and Machinery etc. Specially Designed for their Production Aircraft and helicopters, of the piloted or pilotless types and aero-eng!nes and aircraft equipment, associated equipment and components, speCially designed for military purposes. Articles (including vehicles) not elsewhere specified, specially designed od adapted for military use, and all specifically designed components an parts therefor. . Arms, missiles and munitions; and components and parts specially designed therefor. [Note: The Export Licensing Branch will consider applications for licences to export small quantities of small arms such as rifles, shotgun carbines or pistols designed for sporting or ornamental purposes, an ammunition therefor.] Biological and chemical materials adapted for use in war to p~oduce casualties in men or animals, or to damage crops; equipment spectficallY designed and intended (a) for their dissemination, and (b) f'tr de!enc against such materials; and components and parts specially deslgne therefore

d d

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