Regulatory Information

Custom Pipe Markers

ASME Standard for Pipe Identification - Overview

ASME(ANSI) Standard A13.1-1996
The ASME(ANSI) Standard for pipe identification is a widely used guideline in determining pipe identification requirements. Its purpose is to assist in identification of hazardous materials conveyed in piping systems and their hazards when released into the environment. Pipes are defined as conduits for the transport of gases, liquids,
semi-liquids or fine particulate dust.

Emedco Pipe Marking Systems Meet the
ASME(ANSI) A13.1-1996 Standard

Emedco Pipe Markers instantly identify pipe contents, direction of flow, and whether contents are hazardous or safe.

Outside Diameter of Pipe or Covering Size of Letters
3/4" to 1-1/4" 1/2"
1-1/2" to 2" 3/4"
2-1/2" to 6" 1-1/4"
8" to 10" 2-1/2"
Over 10" 3-1/2"

NOTE: For pipes less than 3/4" in diameter, a permanently legible tag is recommended.

Emedco Pipe Marking Systems Meet ASME(ANSI)

Size Recommendations
The A13.1-1996 standard also makes recommendations as to the size of letter height and length of color field for various pipe diameters. These recommendations are shown in the table. Emedco markers, used properly with arrows and banding tape or arrow tape, meet or exceed the standard.

Color Recommendations
Unmarked pipes mean danger - to both life and property. Numerous injuries have occurred through ignorance of pipe contents, particularly when outside agencies are called in under emergency conditions.

Pipe Marker Color Table

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