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AQ 4232-2025Safety specification for dust explosion protection in rubber and plastic processing system (English PDF)

橡胶和塑料制品加工系统粉尘防爆安全规范

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Issued by

Ministry of Emergency Management

Level / Type

National · Mandatory

Issue date

December 13, 2025

Implementation date

November 1, 2026

Scope

AQ 4232-2025 is the English-translated version of 橡胶和塑料制品加工系统粉尘防爆安全规范.

AQ 4232-2025 — This standard specifies the classification and scope of dust explosion hazard zones in rubber and plastic product processing systems, basic requirements, building (structure) requirements, process system and equipment requirements, dust removal system requirements, explosion control measures, and operational safety management requirements, and describes the corresponding verification methods.

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Document preview — AQ 4232-2025

National Standard of the People's Republic of China

ICS: 13.230
Classification: C 67
Replacing: AQ 4232-2013

Issued by: Ministry of Emergency Management

What this standard covers1
Document data2

What this standard covers

This standard specifies the classification and scope of dust explosion hazard zones in rubber and plastic product processing systems, basic requirements, building (structure) requirements, process system and equipment requirements, dust removal system requirements, explosion control measures, and operational safety management requirements, and describes the corresponding verification methods. This standard applies to the dust explosion-proof safety management of production, processing, storage, transportation, or recycling systems for rubber, plastic, and resin granules or powders, including tire manufacturing, rubber or plastic sheet, belt, pipe, and ring manufacturing, electrostatic powder coating, and other processes that generate rubber, plastic, and resin dust, such as crushing, polishing, and grinding.

Document data

International classification (ICS): 13.230.

Chinese classification (CCS): C67.

Estimated length of the Chinese original: 15,149 words.

Supersedes the earlier edition AQ 4232-2013.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 10 pages — is available in the English PDF.

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