Standard No.:	GB/T 19868.4-2005
English Name:	Welding procedure qualification based on pre-production welding test
Chinese Name:	基于预生产焊接试验的工艺评定
Chinese Classification:	J33    Welding and cutting
Professional Classification:	GB    National Standard
ICS Classification:	25.160.10 25.160.10    Welding processes 25.160.10
Issued by:	AQSIQ and SAC
Issued on:	2005-8-10
Implemented on:	2005-4-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	1500 words
Price(USD):	104.0
Delivery:	via email in 1 business day

1 Scope This Part specifies the qualification requirements for welding procedure based on pre-production welding test. This Part is applicable to fusion welding and resistance welding of metallic materials. But in the actual application, the use of this Part can be restricted by an application standard or specification. 2 Normative References The following normative documents contain provisions which, through reference in this Part of GB / T 19868, constitute provisions of this Part. For dated reference, subsequent amendments (excluding corrigendum content) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this Part are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document referred to applies.

Contents 1 Scope 2 Normative References 3 Terms and Definitions 4 Preliminary Welding Procedure Specifications (pWPS) 5 Qualification of the Welding Procedure 6 Welding of Test Pieces 7 Testing 8 Range of Qualification 9 Validity 10 Welding Procedure Qualification Record (WPQR)