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Labels for Safety, Visuals and Facility ID Desktop Printers
Labels for Product, Wire and Lab ID Benchtop Printers
Ex: M210, 99048, SDPL-RED-38ST-KD6
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Safety and Facility ID Desktop Printers
Product, Wire and Lab ID Benchtop Printers
Barcode Scanners and RFID Readers
PaintStripe Floor Marking Stencils
Valve Lockouts & Hose Lockouts
Group Lock Boxes & Permit Control
- Confined Space Signs
- Construction Site Signs
- Electrical and Arc Flash Signs
- First Aid Signs
- Forklift and Warehouse Safety Signs
- Lockout Tagout Signs
- Machine Operation Signs
- Maintenance Signs
- Marine and IMO Signs
- Personal Protection (PPE) Signs
- Radiation and Laser Signs
- Safety Awareness and Compliance Signs
- Slip, Trip and Floor Obstacle Hazard Signs
- Blank Pipe Markers
- IIAR Ammonia Pipe Markers and Components
- Pipe Markers for Acids and Bases
- Pipe Markers for Air and Ducts
- Pipe Markers for Fire Systems
- Pipe Markers for Gases
- Pipe Markers for Maintenance and Operation
- Pipe Markers for Oil
- Pipe Markers for Other Liquids
- Pipe Markers for Steam
- Pipe Markers for Water
Pipe Marker Accessories & Mounting Brackets
Maintenance and Production Tags
Calculators and Assessment Tools
Product Finders and Data Sheets
- Confined Space Compliance
- NFPA 704 Diamond Guide
- GHS Hazard Statements
- GHS Label Requirements
- GHS Precautionary Statements
- GHS Signal Words
- Proposition 65 FAQ
- What is OSHA Compliance?
- Top 10 OSHA Violations
- GHS Secondary Container Labeling
- Lockout Tagout Procedures Audit
- OSHA vs. ANSI
- DOT Reflective Tape Requirements
- View All
ANSI Pipe Marking Standards
What are OSHA's requirements related to ANSI Pipe Marking Standards
ANSI Pipe Labeling and Marking Standards: What are OSHA's requirements?
Pipe marking standards are not specifically outlined or defined by OSHA, but standard number 1910.261(a)(3)(ii) notes the ASME's (ANSI) standard A13.1 as the recommended scheme for identification of pipe systems.
The ASME Standard for Pipe Identification is a widely used guideline in determining pipe identification requirements. The ASME A13.1-2020 notes indicate that, "A13.1 is intended to establish a common system to assist in identification of hazardous materials conveyed in piping systems and the materials’ hazards when released in the environment." It goes on to identify that this scheme provides pipe system identification recommendations for industrial workplaces, power plants, commercial and institutional installations and buildings used for public assembly.
Pipe Color Code Chart - ANSI/ASME A13.1
| Label Color | Text Color | Color | Pipe Contents |
|---|---|---|---|
| Red | White | Fire-quenching fluids | |
| Orange | Black | Toxic and corrosive fluids | |
| Yellow | Black | Flammable and oxidizing fluids | |
| Brown | White | Combustible fluids | |
| Green | White | Potable, cooling, boiler feed and other water | |
| Blue | White | Compressed air | |
| Purple Gray Black |
White | 
|
Defined by user |
| White | Black | Defined by user |
Pipe Marker Visibility and Size Requirements
The ANSI standard A13.1 on pipe marker visibility and size requirements was updated in 2020, resulting in slight changes from the previous (2015) requirements. When considering the size and placement of lettering on your pipe marker, consider that, “Attention should be given to the visibility of the pipe markings. Where pipelines are located above or below normal line of vision, the lettering should be placed below or above the horizontal centerline of the pipe.”
| Outside Diameter of Pipe or Covering | Length of Color Field | Letter Height |
|---|---|---|
| 0.7 in-1.3 in (18-33 mm) | 8 in (203 mm) | 0.5 in (13 mm) |
| 1.4 in-2.4 in (34-61 mm) | 8 in (203 mm) | 0.7 in (19 mm) |
| 2.5 in-6.7 in (62-170 mm) | 12 in (305 mm) | 1.3 in (32 mm) |
| 6.8 in-10 in (171-254 mm) | 24 in (610 mm) | 2.5 in (64 mm) |
| 10 in (254 mm) or bigger | 32 in (813 mm) | 3.5 in (89 mm) |
What if your pipe or covering outside diameter is less than 0.7 inch or 18 mm?
In cases where it is difficult to label a pipe or covering due to size, we advise using durable and long-lasting energy source or valve tags in place of pipe labels or markers.
Now that we know what our pipe labels need to look like and how big they need to be, we need to understand where they go.
Pipe Marker Placement
Mark pipes adjacent to all valves and flanges.
Mark pipes at both sides of floor.
Mark pipes adjacent to change in direction.
Mark pipes every 25 to 50 foot intervals on straight runs
