The Right Kind Of Pipemarkers

There are several different types of pipe markers. Which you use depends on what's in the pipe and where the pipe is located. This isn't a big, difficult question that requires analysis.

If your pipes are on a ship, then you need to follow the marine pipe marking standards.

If they are medical gas pipes (in a hospital or other medical facility) they need to follow the medical gas standards.

If they are ammonia pipes used for refrigeration, the pipe markers need to follow the IIAR standards.

All others need to follow the ANSI A13.1 pipe marking standards. So it's not that complicated. If you are not in one of these easily recognizable situations, then use the ANSI standard.

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Read more about different pipe marking standards.

You may also hear about an ASME standard for pipe marking. ASME stands for the American Society of Mechanical Engineers. They have adopted the exact same standard as ANSI... so there is no difference between ANSI A13.1 and ASME A13.1.