Historical
DIN EN 13445-4:2011
Unfired pressure vessels - Part 4: Fabrication; German version EN 13445-4:2009 (Foreign Standard)
This document specifies requirements for the manufacture of unfired pressure vessels and their parts, made of steels, including their connections to non-pressure parts. It specifies requirements for material traceability, manufacturing tolerances, welding requirements, production tests, forming requirements, heat treatment, repairs and finishing operations.
Deutsches Institut für Normung [din]