With the existing standards in place, why are 20801.2, 20801.3, and 20801.4 being established? Is it because those existing standards are about to be repealed? The technical standards specified in TSG31 still reference 32270.
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With the existing standards in place, why are 20801.2, 20801.3, and 20801.4 being established? Is it because those existing standards are about to be repealed? The technical standards specified in TSG31 still reference 32270. \"Code for Pressure Piping – Public Pipelines\" (GB/T38942), \"Code for Pressure Piping – Long-Distance Pipelines\" (GB/T34275), \"Code for Pressure Piping – Power Pipelines\" (GB/T32270)
Only the standard number has been changed; the instructor during the previous training said that these standards would be turned into a series of standards. Just by looking at the standard numbers, it’s clear that these standards belong to the same system.