This Standard defines the requirements for qualification testing of welders for fusion welding of steels.
This Standard provides a set of technical rules for a systematic qualification test of the welder, and enables such qualifications to be uniformly accepted independently of the type of product, location and examiner/examining body.
When qualifying welders, the emphasis is placed on the welder's ability to manually manipulate the electrode/welding torch/ welding blowpipe and thereby producing a weld of acceptable quality.
This Standard is applicable to the fusion welding processes which are designated as manual or partly mechanized welding. It does not cover fully mechanized and automated welding processes.
Foreword II
1 Scope
2 Normative References
3 Terms and Definitions
4 Symbols and Abbreviated Terms
5 Essential Variables and Range of Qualification
6 Examination and Testing
7 Acceptance Requirements for Test Pieces
8 Re-tests
9 Period of Validity
10 Certificate
11 Designation of Welder Qualification
Appendix A (Informative) Welder's Qualification Test Certificate
Appendix B (Informative) Designation Examples
Appendix C (Informative) Job Knowledge
Appendix D (Normative) Parameters of Prolongation Required to be Confirmed and Retraced
Appendix E (Informative) Grouping of Steels
Appendix F (Informative) Explanation of Fracture Test in According to ISO 9017
