ASME (ANSI) STANDARD A13.1-2007
MEETS ASME (ANSI) CRAFTMARK ✓ STANDARD A13.1-2007 PIPE MEETS ASME (ANSI) ✓ LETTER SIZE STANDARD
MARKERS MEETS ASME (ANSI) SINCE ✓ COLOR FIELD WIDTH STANDARDS MEETS ASME (ANSI) 1959 ✓ COLOR RECOMMENDATION STANDARDS
ASME (ANSI) STANDARD A13.1 is the benchmark for pipe marking and labeling in all commercial, industrial, institutional and all public buildings. The standard remained unchanged for many years until the most recent revision in 2007. Standard A13.1 specifies the size, color, placement of pipe markers as well as pronouncing the primary identification (legend & arrow) and the secondary identification (color) by which specific color designation are specified for various materials. This secondary identifier is where we see the change in 2007 adoption of the standard. In this new standard there are 6 standard color designations instead of the previous 4 color designation. Many Legends which were previously green/white are now yellow/black so it is important to specify the correct colors. Another change is the addition of orange/black to designate toxic and corrosive fluids and brown/white to designate combustible fluids. We have included both the current as well as previous color designations for comparative purposes.
1996 ASME (ANSI) COLOR STANDARDS COLOR RECOMMENDATION CLASSIFICATION BACKGROUND/LEGEND FLAMMABLE OR EXPLOSIVE CHEMICALLY ACTIVE OR TOXIC HAZARDOUS EXTREME TEMPERATURE OR PRESSURE Yellow/Black RADIOACTIVE LOW LIQUID OR LIQUID ADMIXTURE 2 Green/White HAZARD
LOW GAS OR GASEOUS ADMIXTURE Blue/White HAZARD FIRE QUENCHING WATER, FOAM, CO2, HALON, ETC Red/White MATERIALS NOTES: 1) Previously specified radioactive markers using yellow and purple are acceptable if already installed and/or until existing supplies are depleted, subject to pertinent Federal Regulations. 2) Markers with black letters on a green color field are acceptable if already installed and/or until existing supplies are depleted.
2007 ASME (ANSI) COLOR STANDARDS COLOR RECOMMENDATION CLASSIFICATION LATEST BACKGROUND/LEGEND FLAMMABLE FLUIDS Yellow/Black POTABLE, COOLING, BOILER FEED & OTHER WATER Green/White COMPRESSED AIR Blue/White FIRE QUENCHING FLUIDS Red/White COMBUSTIBLE FLUIDS Brown/White TOXIC & CORROSIVE FLUIDS Orange/Black DEFINED BY USER Black/White DEFINED BY USER Purple/White DEFINED BY USER White/Black DEFINED BY USER Grey/White
2007 ASME (ANSI) SIZE CHART