Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Preliminary welding procedure specifications (pWPS)
5 Qualification of the welding procedure
6 Welding of test pieces
7 Testing
7.1 Fusion welding
7.2 Resistance welding
7.2.1 General
7.2.2 Overlap welding
7.2.3 Butt welding
8 Range of qualification
9 Validity
10 Welding procedure qualification record (WPQR)
Annex ZA (informative) Relationship between this European
Standard and the essential requirements of EU
directive 97/23/EC