Historical
DIN EN 13445-4/A1:2016
Unfired pressure vessels - Part 4: Fabrication; German version EN 13445-4:2014/A1:2016 (Foreign Standard)
This document (EN 13445-4/FprA1:2016) includes the text of the amendment of EN 13445-4:2014. This Amendment refers to 7.4 "Qualification of welders and welding operators".
Deutsches Institut für Normung [din]