The inspection and test plan for line pipe article provides you information about line pipe inspection and line pipe in manufacturing shop.
You may need to review this sheet in conjunction of Third Party Inspection for Line Pipe article.
The API 5L, 5LX and 5LC Code requirements normally are applied for inspection and test plan in manufacturing shop.
The witness of some inspection and test by third party inspector is mandatory and cannot be waived.
Some others must only monitored and fully witnessing is not necessary, for these items, the inspection man-days etc. depends to the purchaser decision, some prefer stringent monitoring and even assign resident inspector in manufacturing shop and some others relay to quality control system of the manufacture and assign only few days for monitoring points.
These are some of inspection points which need to be witnessed, checked monitored and reviewed by third party inspector line pipe manufacture shop
Checking weld procedure approval test and welding operator competency test records to ensure both are qualified in accordance with the code requirements.