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GB/T 44394-2024Guidance for dust explosion hazard identification and protection of chemicals (English PDF)

化学品粉尘爆炸危害识别和防护指南

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 23, 2024

Implementation date

December 1, 2024

Scope

GB/T 44394-2024 is the English-translated version of 化学品粉尘爆炸危害识别和防护指南.

GB/T 44394-2024 is the Chinese national standard covering the dust a chemical gives off and what it takes to keep it from exploding — the identification of dust flammability, the identification of the explosion hazard, the basic protective measures, the communication of the hazard and the risk, an appendix listing the ignition sources that turn up during operation, and the subsequent explosion, where the shock wave of the first lifts settled dust and feeds a second. Explosive and self-decomposing substances and mixtures are outside it, and are handled elsewhere. First edition, in force from 1 December 2024. Issued on 23 August 2024, it has been in force since 1 December 2024.

Document preview — GB/T 44394-2024

National Standard of the People's Republic of China

ICS: 13.300
Classification: A 80

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

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Identification of dust flammability2
5 Explosion Hazard Identification4
6 Basic protective measures5
7 Hazard and risk communication7
Appendix A (Informative) Various potential ignition sources during operation8
References9

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting is required.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is proposed and coordinated by the National Technical Committee on Hazardous Chemicals Management Standardization (SAC/TC 251).

This document was drafted by: Shanghai Chemical Industry Research Institute Testing Co., Ltd., China Institute of Work Safety, Nanjing University of Science and Technology, Shanghai Chemical Industry RESEARCH INSTITUTE LIMITED.

The main drafters of this document are: Xiao Qiuping, Qin Wenjing, He Yuan, Chen Sining, Zhou Jian, Xu Sen, Liu Wanqing, Wang Yao, Guo Lu, Fan Bin, Su Mingqing, Lin, J., Zeng, G.L., Liu, W., Gu, Y.X., and Lu, C.

A Guide to Chemical Dust Explosion Hazard Identification and Prevention

1 Scope

This document provides identification of dust flammability of chemicals, identification of explosion hazards, basic protection measures, and hazard and risk communication.

This document applies to dust explosion hazard identification and protection for chemicals.

This document does not apply to explosive or self-decomposing substances or mixtures.

2 Normative references

GB/T 3836.12

GB 15577-2018

GB/T 15604-2008

GB/T 15605

GB/T 16425

GB/T 17519

GB/T 24626

GB 25285.1

GB/T 25445

3 Terms and definitions

The following terms and definitions as defined in GB 15577-2018, GB/T 15604-2008 and GB/T 16425 apply to this document.

3.1 Combustible dust

Dust, fibers or flying catkins that can undergo violent oxidation reactions with gaseous oxidants (mainly air) under atmospheric conditions. [Source. GB 15577-2018, 3.1]

3.2 dust explosion

The flame propagates in the dust cloud, causing a significant jump in pressure and temperature.

[Source. GB/T 15604-2008, 2.11]

3.3 subsequent explosion

When a dust explosion occurs, the shock wave of the initial explosion will lift up the deposited dust that has not exploded, forming a dust cloud, which will be ignited and Continuous explosions occurred. [Source. GB 15577-2018, 3.8]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 3836.12 · GB/T 15605 · GB 25285.1 · GB/T 25445

Editions of GB/T 44394

Edition	Title	Revision	Status
GB/T 44394-2024	Guidance for dust explosion hazard identification and protection of chemicals	current edition	Current

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