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GB/T 42594-2023Guidelines for classifying the hazard of media in pressure equipment (English PDF)

承压设备介质危害分类导则

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 23, 2023

Implementation date

May 23, 2023

Scope

GB/T 42594-2023 is the English-translated version of 承压设备介质危害分类导则.

GB/T 42594-2023 is the Chinese standard "Guidelines for classifying the hazard of media in pressure equipment".

Its scope clause reads: 1:1 This document specifies the principles and requirements for the hazard classification of media used or stored in pressure equipment: 1:2 This document is applicable to the hazard classification of media used or stored in stationary pressure vessels and industrial pipelines, including raw materials, finished products, semi-finished products Products, intermediates, reactants, reaction by-products and impurities, etc:, the hazard classification of the medium used or stored in portable pressure vessels and gas cylinders can refer to Can be used: This document can be used for design and manufacture of pressure equipment (including risk-based design), risk assessment, inspection and testing, integrity management, etc: Hazard classification analysis of media at work, and compatibility analysis of media and materials: 1:3 This document does not apply to pressure chambers in fluid machinery (such as pump casings, compressor casings, turbine casings, hydraulic cylinders, pneumatic cylinders, etc:), nuclear energy Hazard classification of media used or stored by pressure equipment in the installation:. Its clauses include terms and definitions.

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Document preview — GB/T 42594-2023

National Standard of the People's Republic of China

ICS: 23.020.10
Classification: J 70

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 General requirements
5 Toxic media
6 Explosive media
7 Flammable media
8 self-reactive medium
9 Pyrophoric media
10 Medium that emits flammable gas when in contact with water
11 Oxidizing media
12 organic peroxides
13 pressurized gas
14 metal corrosive medium
15 Compatibility of media and materials
Appendix A (Normative) Hazard Classification of Common Media
Appendix B (informative) Common media requiring temperature control

1 Scope

1:1 This document specifies the principles and requirements for the hazard classification of media used or stored in pressure equipment:

1:2 This document is applicable to the hazard classification of media used or stored in stationary pressure vessels and industrial pipelines, including raw materials, finished products, semi-finished products

Products, intermediates, reactants, reaction by-products and impurities, etc:, the hazard classification of the medium used or stored in portable pressure vessels and gas cylinders can refer to

Can be used: This document can be used for design and manufacture of pressure equipment (including risk-based design), risk assessment, inspection and testing, integrity management, etc:

Hazard classification analysis of media at work, and compatibility analysis of media and materials:

1:3 This document does not apply to pressure chambers in fluid machinery (such as pump casings, compressor casings, turbine casings, hydraulic cylinders, pneumatic cylinders, etc:), nuclear energy

Hazard classification of media used or stored by pressure equipment in the installation:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references

For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document:

GB/T 30579 Damage Pattern Recognition of Pressure Equipment

GB/T 31481 Compatibility Judgment Guidelines for Cryogenic Vessel Materials and Gases

GBZ 230 Classification of Hazard Degree of Occupational Exposure to Toxic Substances

ISO 2592 Determination of flash point and fire point of petroleum and related products Cleveland open cup method (Petroleumandrelated

ISO 10156 Determination of flammability potential and oxidizing capacity for cylinder valve openings for gases and gas mixtures in cylinders (Gascyl-

ISO 11114 (all parts) Compatibility of gas cylinders, cylinders and valves with gases (Gascylinders- Compatibilityof lingofchemicals, GHS)

3 Terms and Definitions

The following terms and definitions apply to this document:

3:1

Medium medium

A chemical substance present in pressurized equipment in fluid or fluid form:

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 237 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 2592 · ISO 10156 · ISO 11114

Cited by

GB/T 45580-2025Safety technical requirements of metal portable tank for liquid dangerous goods transported by road

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