scope:

This part of ISO 15614 specifies how a preliminary welding pro cedure specification for overlay welding is qualified by weldi ng procedure tests. This part of ISO 15614 defines the conditi ons for carrying out welding procedure tests and the range of qualification for welding procedures for all practical welding operations within the range of variables listed in Clause 8. Additional tests may be required by application standards. Thi s part of ISO 15614 applies to all welding processes suitable for overlay welding. This part of ISO 15614 is applicable to a ll new welding procedures. However, it does not invalidate pre vious welding procedure tests made to former national standard s or specifications. Where additional tests are carried out to make the qualification technically equivalent, they are only done on a test piece made in accordance with this part of ISO 15614. This part of ISO 15614 does not apply to overlay weldin g where cracks are intentionally produced (e.g. special hardfa cing applications).