Standard No.:	HG/T 20638-1998
Chinese Name:	自控专业工程设计文件深度的规定
English Name:	Specification for details of engineering design of instrumentation
Professional Classification:	P94 Metal equipment and process pipe installation engineering
Professional Classification:	HG Professional Standard - Chemistry
ICS Classification:	25.040.40 Industrial process measurement and control
Issued by:
Issued on:
Implemented on:	2001-08-01
Status:	ABOLISHED
Replace By:	HG/T20638-2017
Replace By Date:	2018-01-01
Language:	English
File Format:	PDF
Word Count:	79000 words
Price(USD):	2370 (USD)
Delivery:	via email in 1-10 business day

1.0.1 This specification is hereby prepared with a view to meeting the need of domestic and foreign engineering construction projects and achieving standardization and normalization of engineering design of instrumentation.
1.0.2 This specification is not only applicable to engineering design adopting conventional instrument, but also one adopting DCS. The design document examples attached in this specification are only used for describing the content to be included in the engineering design and the depth to be reached, instead of the recommendation of technical scheme. Each design document has no direct contact and is not displaying a complete engineering design document of instrumentation.
1.0.3 Relevant standards
HG/T 20637 "Specification for Preparation of Engineering Design of Instrumentation"
HG/T 20639 "Typical Drawing and Standard List for Engineering Design of Instrumentation"
During the implementation of this specification, the provisions in the current relevant standards of the nation shall be complied with.