Standard No.:	HG/T 20637.3-1998
English Name:	Preparation of instrumentation engineering specification
Chinese Name:	仪表设计规定的编制
Chinese Classification:	P94    Metal equipment and process pipe installation engineering
Professional Classification:	HG    Professional Standard - Chemistry
ICS Classification:	25.040.40 25.040.40    Industrial process measurement and control 25.040.40
Issued by:	State Bureau of Petroleum and Chemical Industries
Issued on:	1998-6-22
Implemented on:	1999-1-1
Status:	superseded
Superseded by:	HG/T 20637.3-2017 Code for preparation of engineering design documents of instrumentation in chemical industry Preparation of instrumentation general specification
Superseded on:	2018-4-1
Abolished on:	2018-04-01
Language:	English
File Format:	PDF
Word Count:	11000 words
Price(USD):	220.0
Delivery:	via email in 1 business day

1.0.1 This Specification is used to guide the instrumentation designing personnel to prepare the instrumentation engineering design specification, or guide the designing personnel to select or supplement the instrumentation design specification (general) in Appendix A of this Specification, to form the instrumentation engineering design specification. 1.0.2 Instrumentation design specification is a uniform one in this profession of the engineering project, which not only describes the basic design principles to the users but also guides the design work of all the instrumentation designing personnel of this engineering. Design specification is used by the insiders of this company and the users, or issued to the manufacturer. 1.0.3 Where this Specification is implemented, the current relevant standards of the nation shall also be complied with.

1 General Provisions 2 Contents of Instrumentation Design Specification 2.1 General 2.2 Design and Type Selection 2.3 Installation 3 Preparation Requirements of Instrumentation Design Specification Appendix A Instrumentation Design Specification (General) A.1 General A.2 Design and Type Selection A.3 Installation A.4 Directions for Use of Instrumentation Design Specification (General)