ASME A13.1 Scheme for the Identification of Piping Systems provides minimum requirements for the identification of hazardous materials conveyed in piping systems. The document applies to general industry and does not address specific chemical (ammonia, chlorine, etc.) labeling requirements. Basic requirements contained within ASME A13.1 include: Pipe labels must include arrows to indicate flow direction (§3.1) […]
Question: I’ve heard that the ammonia pipe labeling requirements have changed. Is that true? Answer: Yes and No. It is true that IIAR updated Bulletin No. 114 Identification of Ammonia Refrigeration Piping and System Components in March 2014. The update includes a fundamental change that we will address in this blog. Before doing that, however, it is important that we unpack […]
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