The following is a transcript of the Electrical Injuries Infographic:
Pipe Marking
ANSI/ASME A13.1 2007 Standard
Color Chart
FLAMMABLE Black on Yellow e.g.: Hydrogen
COMBUSTIBLE White on Brown e.g.: Canola Oil
TOXIC/CORROSIVE Black on Orange e.g.: Nitric Acid
FIRE QUENCHING White on Red e.g.: Fire Water
OTHER WATER White on Green e.g.: Boiled Water
COMPRESSED AIR White on Blue e.g.: Nitrogen
Defined by User
White on Black
White on Gray
White on Purple
Black on White
Pipe Marker Placement
Label placement in relation to point of normal approach
Size Chart
Outside pipe diameter w/ cover:
75" - 1.25"
1.5" - 2"
2.5" - 6"
8" - 10"
Over 10"
Minimum Length field color
8"
8"
12"
24"
32"
Min. letter height
.5"
.75"
1.25"
2.5"
3.5"
- Adjacent to changes in direction
- Adjacent to all valves & flanges
- Both sides of floor/wall penetrations
- Every 25' 50' on straight runs is typical