What are the applicable codes and standards used in determining the testing (pressure testing, NDT, test of butt fuses pipes) to be used for HDPE? What are the criteria?
The design conditions of a line falls under the Category D service, however operating pressure is 0 barg at 31 degC. Is there a leak testing or hydrotest required? If none, then what part of the code in ASME B31.3 could support that this has no testing requirement. Thank you!