BS EN 13445-4 : 2014

Foreword
1 Scope
2 Normative references
3 Requirements for manufacturing and subcontracting
4 Materials
5 Manufacturing tolerances
6 Weld details
7 Welding
8 Manufacture and testing of welds - Production test
9 Forming of pressure parts
10 Post weld heat treatment (PWHT)
11 Repairs
12 Finishing operations
Annex A (informative) - Structural tolerances
Annex B (informative) - Example of a sub-contractors form
Annex C (normative) - Specification and approval of expansion
        procedures and operators
Annex Y (informative) History of EN 13445-4
Annex ZA (informative) - Relationship between this European
         Standard and the essential requirements of Directive
         2014/68/EU aimed to be covered
Bibliography

Defines requirements for the manufacture of unfired pressure vessels and their parts, made of steels, including their connections to non-pressure parts.