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ASME A13.1: Scheme for the Identification of Piping Systems

Applies to: process, HVAC and plumbing piping in industrial, commercial and institutional buildings. The standard most mechanical specs call for.

• Marker color set by pipe contents
• Legend naming the contents, plus flow arrows
• Letter height and color field length by pipe OD
• Markers at valves, branches, walls and along straight runs

Free PDFs from our 2026 catalog, written to the 2023 edition of ASME A13.1.

IIAR Bulletin #114: Ammonia Refrigeration Piping

Applies to: ammonia refrigeration systems in cold storage, food and beverage processing and industrial plants.

• Pipe markers showing contents, pressure level and physical state
• Component markers for vessels, compressors and equipment
• Physical state & pressure tape
• System reference charts

NFPA 99 & CGA C-9: Medical Gas Piping

Applies to: medical gas and vacuum piping in hospitals, surgery centers, clinics and labs.

• Gas name and color code for each medical gas
• Oxygen, nitrous oxide, medical air, vacuum, WAGD and more
• Markers on piping and at valves
• Snap-on, self-stick and rollform options

APWA Uniform Color Code: Underground Utilities

Applies to: marking buried utility lines, underground warning tape and temporary excavation markings.

GHS: Hazard Pictograms for Piping

Applies to: pipes carrying hazardous chemicals, where GHS pictograms (used in OSHA's Hazard Communication Standard) are added to the marker.

• Nine pictograms: flame, corrosion, skull, health hazard and more
• Pictogram plus the ASME legend and color on one marker
• Our chart explains what each pictogram means

ISO 14726: Piping on Ships and Offshore Platforms

Applies to: piping systems on vessels and offshore installations, using main color bands, additional color bands and flow direction.

• Main color bands by system (water, fuel, air and more)
• Additional bands for the specific fluid
• Flow direction arrows and legends

BABA: Build America, Buy America

Applies to: infrastructure projects funded with federal financial assistance, which must use qualifying U.S.-made products.

• Craftmark products are BABA compliant
• Made in Fort Worth, Texas
• Ask us for documentation for your submittals