MSS SP-137:2020
Current
The latest, up-to-date edition.
Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings, and Other Piping Components
Hardcopy , PDF
English
10-11-2020
MSS SP-137-2020 provides methods and acceptance standards for Positive Material Identification (PMI) of metal flanges, fittings, valves, and pressure boundary parts of valves and other piping components.
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