IS-2379 Color Codes for Industrial Gases

ContentsGround ColourFirst Colour BandSecond Colour Band
AmmoniaCanary yellowDark violet—
ChlorineCanary yellowDark violetLight orange
Hydrocyanic acidCanary yellowDark violetPost office red
PhenoleCanary yellowDark violetSmoke grey
Sulphur dioxideCanary yellowDark violetGolden brown
AcetyleneCanary yellowService brown—
Flare gasesCanary yellow——
Hydrogen sulphideCanary yellowGulf red—
ArgonCanary yellowFrench blue—
BenzoleCanary yellowDark violetFrench blue
Blast furnace gasCanary yellowSignal redLight grey
ButaneCanary yellowSignal red—
Coal gasCanary yellowSignal redBrilliant green
Carbon dioxide ( temperate )Canary yellowLight grey—
Carbon monoxideCanary yellowSignal redWhite
Coke oven gasCanary yellowSignal redDark violet
Ethylchloride ( inflammable )Canary yellowLight greySignal red
Ethylchloride ( non-inflammable )Canary yellowLight greyWhite
EthyleneCanary yellowDark violetSignal red
Ethylene oxideCanary yellowDark violetBrilliant green
Freon ( chlorofluoro derivative of methane and ethane )Canary yellowLight greyDark violet
HeliumCanary yellowLight brown—
HydrogenCanary yellowSignal redFrench blue
MethaneCanary yellowSignal redLight brown
MethylbromideCanary yellowFrench blueBlack
Methylchloride ( inflammable)Canary yellowBrilliant greenSignal red
Methylchloride ( non-inflammable )Canary yellowBrilliant greenFrench blue
NeonCanary yellowLight brownBlack
NitrogenCanary yellowBlack—
OxygenCanary yellowWhite—
PropaneCanary yellowSignal redBlack
PhosgeneCanary yellowBlackWhite