Plastic Pipes. Butt Fusion. Part 4. Marking. Documentation
Tengdur staðall:
INSTA 2072-4:2021
Tækninefnd:
INSTA/ÍST
ICS flokkur:
91.140
Auglýst:
15.3.2022
Umfang (scope):
This guide describes the procedure for documenting the welding process. It also defines the scope of the marking and marking equipment and describes the procedure for marking the butt welded seams.