Identification Labels.docx

Identification Labels - Pipes and Equipment Tags and label colors used for mechanical, plumbing and piping systems Sponsored Links

Abbreviations, letter tags and label coloring for mechanical, plumbing and piping systems are based on     

ASME A13.1 - Scheme for the Identification of Piping Systems. NFPA 99 – Standard for Health Care Facilities. NFPA 13 – Installation of Sprinkler Systems. NFPA 14 – Installation of standpipe and Hose Systems. International Plumbing Code. Label Abbreviation

System, Pipe Contents

Label Colors (Background - Text)

CHWR

Chilled Water Return

Green - White

CHWS

Chilled Water Supply

Green - White

CWR

Condenser Water Return

Green - White

CWS

Condenser Water Supply

Green - White

FOR

Fuel Oil Return

Yellow - Black

FOS

Fuel Oil Supply

Yellow - Black

HPC

High Pressure Condensate

Blue - White

HPS

High Pressure Steam (above 125#)

Blue - White

HWR

Hot Water Heating Return

Green - White

HWS

Hot Water Heating Supply

Green - White

LPC

Low Pressure Condensate

Blue - White

LPS

Low Pressure Steam (below 25#)

Blue - White

MPC

Medium Pressure Condensate

Blue - White

Label Abbreviation

System, Pipe Contents

Label Colors (Background - Text)

MPS

Medium Pressure Steam (above 25# - below 125#)

Blue - White

PCR

Pumped Condensate Return

Blue - White

ACID

Acid Waste

Orange - Black

BR

Brine Water

Orange - Black

FIRE

Fire Suppression Water

Red - White

HAZ

Hazardous Waste

Orange - Black

DI or RO

High Purity Water

Green - White

DCW

Potable Cold Water

Green - White

DHW

Potable Hot Water Supply

Green - White

DHWR

Potable Hot Water Return

Green - White

NG

Natural Gas

Yellow - Black

LN2

Nitrogen (liquid)

Black - White

Med Air

Medical air

Yellow - Black

CO2

Carbon dioxide

Gray - White

He

Helium

Brown - White

N2

Nitrogen

Black - White

N2O

Nitrous oxide

Blue - White

O2

Oxygen

Green - White

Med Vac

Medical?surgical vacuum

White - Black

Label Abbreviation

System, Pipe Contents

Label Colors (Background - Text)

WAGD

Waste anesthetic gas disposal

Violet - White

Lab Air

Laboratory air

Yellow and White checkerboard - Black

Lab Vac

Laboratory vacuum

White and Black checkerboard - Black boxed

IA

Instrument air

Red - White

CFHE

Chemical Fume Hood Exhaust

Purple - White

BCE

Biosafety Cabinet Exhaust

Purple - White

RE

Radioisotope Exhaust

Yellow - magenta

ETOE

ETO Exhaust

Purple - white

ASME A13.1 - 2007 Scheme for the Identification of Piping Systems - is intended to establish a common system to assist in identification of hazardous materials conveyed in piping systems and their hazards when released in the environment - concerns identification of contents of piping systems in industrial and power plants - recommended for the identification of piping systems used in commercial and institutional installations and in buildings used for public assembly.