Understanding of the standards for welding procedure qualification
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1. It is the understanding that one welding procedure specification can be developed based on multiple weld qualification reports. Is it possible to use different standards? For example, can two weld qualification reports based on the standards NB/T 47014 and YS/T 0452 be used together to create one welding procedure specification? 2. The standard states in the impact test section: “When an impact test is required.” How should this be understood? Is it required when there are specifications in the design drawings? Are there any requirements for the pipes?
One work instruction can be used for several process evaluations. Impact testing is determined by the material.