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?
I see noone has yet tried to help you -- if you sign in as member and go to the "advanced" search feature (be sure and check "full site"), I think you will find this subject has been discussed many times on a great many threads in different forums [e.g .