Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
   4.1 General
   4.2 Test piece
   4.3 Consumable
   4.4 Miscellaneous
5 Essential variables for approval testing
   5.1 General
   5.2 Welding processes
   5.3 Joint types (butt and fillet welds)
   5.4 Material groups
   5.5 Consumables
   5.6 Dimensions
   5.7 Welding positions
   5.8 Hyperbaric environment
6 Range of approval
   6.1 General
   6.2 Welding process
   6.3 Joint types
   6.4 Material groups
   6.5 Consumables
   6.6 Dimensions
   6.7 Welding positions
   6.8 Hyperbaric environment
7 Examination and testing
   7.1 General
   7.2 Supervision
   7.3 Shapes and dimensions of test pieces
   7.4 Welding conditions
   7.5 Test methods
   7.6 Test pieces and test specimens
8 Acceptance requirements for test pieces
9 Re-tests
10 Period of validity
   10.1 Initial approval
   10.2 Prolongation
11 Certificate
12 Designation
Annex A (informative) Diver-welder or welding operator test
        certificate for hyperbaric dry welding
Annex B (informative) Job Knowledge