I have been in the equipment industry (compressors mainly) for the past 11 years. I have seen more combinations of symbols used on P&ID that I really care to. However, I have been asked to write a company standard. I sort of thought that ISA-5 would contain everything that I needed to know. For instruments, this is the case. However, for Valves, process lines, hoses & such, ISA leaves this stuff out or only addresses a few types. Does anyone know of another ISA standard for these? Any other standard such as API, ASME, ANSI, etc would also work to.
Thanks, Chris Foley Midland, TX
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