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Database: 189759 (19 Oct 2025)
HG/T 20638-2017 English PDF
HG/T 20638: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
HG/T 20638-2017
English
RFQ
ASK
3 days [Need to translate]
(Depth specification of self - control engineering design file for chemical plant)
Valid
HG/T 20638-2017
HG/T 20638-1998
English
RFQ
ASK
3 days [Need to translate]
Specification for details of engineering design of instrumentation
Obsolete
HG/T 20638-1998
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HG/T 20636.1
Basic data
Standard ID
HG/T 20638-2017 (HG/T20638-2017)
Description (Translated English)
(Depth specification of self - control engineering design file for chemical plant)
Sector / Industry
Chemical Industry Standard (Recommended)
Classification of Chinese Standard
P94
Word Count Estimation
124,126
Date of Issue
2017-07-07
Date of Implementation
2018-01-01
Older Standard (superseded by this standard)
HG/T 20638-1998
Regulation (derived from)
Ministry of Industry and Information Technology Bulletin 2017 No.32
Issuing agency(ies)
Ministry of Industry and Information Technology
Summary
This standard specifies the depth description of the contents of the self-control engineering design process package; specifies the depth description of the document in the engineering design stage; specifies the example of the self-control professional design file in the process package stage; and specifies the example of the self-control professional design file in the engineering design stage.