
ASME B31.3 Process Piping Code Changes
Important Code Changes. Our IRISNDT Engineering group highlights changes to the 2020 edition of ASME B31.3 Process Piping Code, to be enforced in the next year, which will impact fabricators and owners of existing piping: Until now, weld metal deposits needed impact test qualifications at minimum design metal temperature (MDMT) of -29°C (-20°F) or lower. In the 2020 edition, the




