scope:

This Standard defines general rules for the specification and qualification of welding procedures for metallic materials. This Standard also refers to several other standards as regards detailed rules for specific applications.

This Standard is part of a series of standards dealing with specification and qualification of welding procedures. Annex A gives details of International Standards dealing with specification and qualification of welding procedures, Annex B gives results and parties involved at different phases in welding procedure qualification, and Annex C gives a flow diagram for the development and qualification of a WPS.

This Standard is applicable to manual, partly mechanized, fully mechanized and automated welding.

Welding procedures are qualified by conforming to one or more welding procedure qualification records (WPQR). The use of a particular method of qualification is often a requirement of an application standard.

Welding procedure specifications (hereafter referred to as WPS) are used for the production welding by suitably competent welders or operators.

NOTE 1 Suitably competent welders or operators refer to those qualified according to a standard agreed between the contracting parties. Examples of relevant standards such as Japanese Industrial Standards and International Standards are given as follows :

- Japanese Industrial Standards : JIS Z 3801, JIS Z 3805, JIS Z 3811, JIS Z 3821, JIS Z 3841;

- International Standards : ISO 9606-1, ISO 9606-2, ISO 9606-3, ISO 9606-4, ISO 9606-5, ISO 14732.

NOTE 2 The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 15607 : 2019 Specification and qualification of welding procedures for metallic materials - General rules (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.