The issue of the inspection rate for pressure pipelines
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Dear experts, I would like to ask for your guidance regarding the interpretation of the requirement for non-destructive testing of welds as specified in GB50316. For example, according to Article 6, which calls for 100% testing, this applies to Category C components with a design pressure of 10 MPa or higher, and a design temperature of 400 degrees Celsius or higher. In this sentence, do pressure and temperature need to be met simultaneously, or is it sufficient to meet just one of them in order to require 100% flaw detection? Thank you
Both conditions must be met; the specifications in GB 50316 are not specific, and it is necessary to follow GB 50184-2011, \"Code for Acceptance of Construction Quality of Industrial Metal Piping Projects\". GB 50184 is written in more detail.