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GB 32276-2025: Safety specification for dust explosion protection in textile industry
GB 32276: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 32276-2025 | English | 279 |
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Safety specification for dust explosion protection in textile industry
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GB 32276-2025
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| GB 32276-2015 | English | 239 |
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Safety regulations for dust explosion protection in textile industry
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GB 32276-2015
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Basic data
| Standard ID | GB 32276-2025 (GB32276-2025) |
| Description (Translated English) | Safety specification for dust explosion protection in textile industry |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | C67 |
| Classification of International Standard | 13.230 |
| Word Count Estimation | 14,135 |
| Date of Issue | 2025-10-31 |
| Date of Implementation | 2026-05-01 |
| Older Standard (superseded by this standard) | GB 19881-2005, GB 32275-2015, GB 32276-2015 |
| Issuing agency(ies) | State Administration for Market Regulation and Standardization Administration of China |
GB 32276-2025: Safety specification for dust explosion protection in textile industry
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 13.230
CCSC67
National Standards of the People's Republic of China
Replaces GB 19881-2005, GB 32275-2015, and GB 32276-2015
Safety regulations for dust explosion prevention in the textile industry
Published on 2025-10-31
Implemented on May 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Classification and Scope of Dust Explosion Hazardous Areas in the Textile Industry 2
5.General Requirements 2
6.Building (Structure) Requirements 3
7.Ventilation system requirements 3
8.Dust removal system requirements 3
9.Explosion control measures requirements 4
10 Electrical Requirements 4
11.Work Safety Management Requirements 5
12 Verification Methods 6
Appendix A (Informative) Basic Data on Textile Fiber Dust Explosions 7
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document supersedes GB 19881-2005 "Safety Regulations for Dust Explosion Prevention in Flax Fiber Processing Systems" and GB 32275-2015 "Textile Industry..."
This document integrates the "Technical Specification for Safety Devices of Fireproof and Explosion-proof Pipelines" and GB 32276-2015 "Safety Regulations for Dust Explosion Prevention in Textile Industry".
Compared with GB 32276-2015, the contents of GB 32275-2015 and GB 19881-2005, except for structural adjustments, are as follows.
Aside from editorial changes, the main technical changes are as follows.
---Added "Dust Removal System", "Dust Removal Equipment", "Pre-filtration", "Fine filtration", "Dust Collector", "Compactor", "Mobile Vacuum Cleaner", and "Dust Collection Pipe"
Nine terms and definitions related to "channel" and "return air ditch" (see 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, and 3.10);
---The terms "textile industry" and "dust removal ditch" have been deleted (see sections 3.1 and 3.3 of the.2015 edition);
---The requirements for classifying hazardous areas for textile fiber dust explosions have been changed (see Chapter 4, Chapter 4 of the.2015 edition);
---Added general requirements for dust explosion prevention in the textile industry (see Chapter 5);
---The requirements for the layout of dust collection rooms have been changed (see 6.1, 6.2, and 5.2.1 in the.2015 version);
---The requirements regarding the ground surface in the factory building structure have been changed (see 6.6, 5.3.2 of the.2015 version);
---Added requirements regarding dust collection ducts and return air trenches (see 6.9);
---The general provisions for dust control have been removed (see 6.1 in the.2015 edition);
---The requirement for classifying dust removal systems in areas with different explosion hazard levels has been removed (section 6.2.1.3 of the.2015 version);
---The requirements for the layout of dust collection equipment have been changed (see 8.3, 8.4, and 6.2.2 of the.2015 version);
---The requirement regarding the reuse of air treated in dust removal rooms has been removed (section 6.2.4.2 of the.2015 version);
---Added dust explosion protection requirements for ventilation systems (see Chapter 7);
---Added dust explosion protection requirements for dust removal systems (see Chapter 8);
---Requirements for explosion control measures have been added (see Chapter 9);
---The requirements for electrical equipment have been changed (see Chapter 10, Chapter 7 of the.2015 edition);
---The requirements for operational safety and dust room management have been changed (see Chapter 11, Chapter 8 of the.2015 edition);
---A verification method has been added (see Chapter 12).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed and is under the jurisdiction of the Ministry of Emergency Management of the People's Republic of China.
The document replaced by this document has been released in the following versions.
---First published in.2015 as GB 32276-2015 "Safety Regulations for Dust Explosion Prevention in Textile Industry";
---First published in.2005 as GB 19881-2005 "Safety Regulations for Dust Explosion Prevention in Flax Fiber Processing Systems";
---First published in.2015 as GB 32275-2015 "Technical Specification for Safety Devices of Fire-proof and Explosion-proof Pipelines in the Textile Industry";
---This is the first revision, and it has been incorporated into GB 19881-2005 and GB 32275-2015.
Safety regulations for dust explosion prevention in the textile industry
1 Scope
This document specifies the classification and scope of dust explosion hazard zones in the textile industry, general requirements for dust explosion prevention, building (structure) requirements, and ventilation...
Requirements for ventilation systems, dust removal systems, explosion control measures, electrical systems, and operational safety management are described, along with corresponding verification methods.
This document applies to dust explosion hazard areas and dust collection systems in the textile industry that use cotton, linen, wool, blended fabrics, synthetic fibers, silk, etc. as raw materials.
Design, operation, and safety management.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 3836.1 Explosive Atmospheres – Part 1.General Requirements for Equipment
GB 3836.15 Explosive Atmospheres – Part 15.Design, Selection and Installation of Electrical Installations
GB 3836.16 Explosive Atmospheres – Part 16.Inspection and Maintenance of Electrical Installations
GB 12158 General requirements for the prevention of electrostatic discharge accidents
GB 15577 Safety Regulations for Dust Explosion Prevention
GB/T 15604 Dust Explosion Prevention Terminology
GB 50016 Code for Fire Protection Design of Buildings
GB 50057 Code for Design of Lightning Protection of Buildings
GB 50058 Design Code for Electrical Installations in Explosive Atmospheres
GB 50565 Fire Protection Design Code for Textile Engineering
GB 55037 General Code for Fire Protection of Buildings
3 Terms and Definitions
The terms and definitions defined in GB/T 15604 and the following terms and definitions apply to this document.
3.1
dust collection room
Buildings and structures for installing dust removal equipment and supporting fans.
Note. This includes the enclosed pressure-bearing shell of the honeycomb dust removal equipment.
3.2
dust collection system
A system for capturing solid particles in a gas-solid two-phase flow, consisting of a dust collection hood, air duct, dust removal equipment, fan, and control device.
Note. Mobile vacuum cleaners and pneumatic conveying systems in textile processes are not considered dust removal systems.
3.3
Dust removal equipment
A device for separating and capturing dust from dust-laden gas.
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