Free Labeling Guides:
ASME Pipe Marking Standards
IIAR Ammonia Pipe Marking
NFPA Diamond
(free information about label or sign printers)

Three labeling guides are available: The guide shown to the left graphically shows the National Fire Protection Association's (NFPA) Hazard Identification Coding System (the NFPA Diamond). You can quickly see the meaning of each color and code.

A second guide gives the basics of the ASME A13.1 pipe identification standards (right). It shows required label size, location, color and text size.

The third is a specialized guide to labeling ammonia pipes based on the IIAR labeling standards used for ammonia refrigeration piping.

Pick whichever guide you need and get it free. There is no cost nor obligation to make a purchase. Use the form below to request your free guide today. We respect your privacy, your information will not be shared

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