Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Preliminary welding procedure specification (pWPS)
5 Welding procedure test
6 Test piece
  6.1 General
  6.2 Shape and dimensions of test pieces
      6.2.1 General
      6.2.2 Butt joint in plate with full penetration
      6.2.3 Butt joint in pipe with full penetration
      6.2.4 T-joint
      6.2.5 Branch connection
  6.3 Welding of test pieces
7 Examination and testing
  7.1 Extent of testing
  7.2 Location and taking of test specimens
  7.3 Non-destructive testing
  7.4 Destructive testing
      7.4.1 General
      7.4.2 Transverse tensile test
      7.4.3 Bend test
      7.4.4 Macro/micro-examination
  7.5 Acceptance level
  7.6 Coloration
  7.7 Re-testing
8 Range of qualification
  8.1 General
  8.2 Related to the manufacturer
  8.3 Related to the parent material
      8.3.1 Parent material grouping
      8.3.2 Material thickness and pipe diameter
      8.3.3 Angle of branch connection
  8.4 Common to all welding procedures
      8.4.1 Welding process
      8.4.2 Welding positions
      8.4.3 Type of joint/weld
      8.4.4 Filler material, designation
      8.4.5 Type of current
      8.4.6 Interpass temperature
      8.4.7 Post-weld heat treatment
      8.4.8 Backing gas
  8.5 Specific to processes
      8.5.1 Process 131
      8.5.2 Process 141
      8.5.3 Process 15
9 Welding procedure qualification record (WPQR)
Annex A (informative) Welding Procedure Qualification
        Record form (WPQR)
Record of weld test
Test results
Annex ZA (informative) Corresponding International and
         European Standards for which equivalents are
         not given in the text
Annex ZB (informative) Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 97/23/EC