JIS Z 3420:2003
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification and approval of welding procedures for metallic materials - General rules
Hardcopy , PDF
06-08-2022
Japanese, English
10-20-2003
This Standard defines general rules for the specification and approval 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. Annex A gives details of this series of standard and Annex B gives a flowchart for the use of these standards.This Standard is applicable to manual, mechanized and automatic welding.This Standard applies to the case where the approval of welding procedures is required in accordance, for example, with contracts, standards, rules or law. Welding procedures are approved by conforming to one or more welding procedure approval records (WPAR).The use of a particular method, the approval of welding procedure approval records (WPAR), is often a requirement of an application standard. If there is no requirement, the method of approval shall be agreed between parties concerned.
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