This Standard specifies how a welding procedure specification is approved by welding procedure tests. This Standard is part of a series of standards, details of this series are given in Annex B. This Standard defines the conditions for the execution of welding procedure tests and the range of approval for welding procedures for all practical welding operations within the range of variables listed in clause 8. Tests shall be carried out in accordance with this Standard, unless additional tests are required by related application standards or contract when applying these requirements. This Standard applies to the arc and gas welding of steels in all product forms and the arc welding of nickel and nickel alloys in all product forms. The principles of this Standard may be applied to other fusion welding processes, if agreed upon between the parties concerned with contract.

ISO/DIS 15614-1 (2003) - Identical