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GB/T 1921-2025Specification for industrial boilers (English PDF)

工业锅炉技术规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 1, 2025

Implementation date

February 1, 2026

Scope

GB/T 1921-2025 is the English-translated version of 工业锅炉技术规范.

GB/T 1921-2025 is the Chinese standard "Specification for industrial boilers". Its scope clause reads: This document specifies the parameter series and model compilation, performance, materials, design, manufacturing, inspection and testing, painting, packaging, nameplate, etc. of industrial boilers.

Brands, signs and random documents as well as installation, commissioning, acceptance and operation. This document applies to industrial boilers.

Non-power station boilers with rated steam pressure greater than or equal to 3.8 MPa and rated working pressure less than Hot water boilers and organic heat carrier boilers with a rated thermal power of 0.1MPa or greater and equal to 0.1MW shall be used for reference. Note. The pressure values mentioned in this document refer to gauge pressure.

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Document preview — GB/T 1921-2025

National Standard of the People's Republic of China

ICS: 27.060.30
Classification: J 98
Replacing: GB/T 1921-2004

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

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Parameter series and model compilation
5 Performance
6 Materials
7 Design
8 Manufacturing
9 Inspection and testing
10 Painting, packaging, nameplate, logo and accompanying documents
11 Installation, commissioning, acceptance and operation
Appendix A (Normative) Steam Boiler Parameter Series
Appendix B (Normative) Hot Water Boiler Parameter Series
Appendix C (Normative) Organic Heat Transfer Material Boiler Parameter Series
Appendix D (Normative) Industrial Boiler Model Compilation Method

1 Scope

This document specifies the parameter series and model compilation, performance, materials, design, manufacturing, inspection and testing, painting, packaging, nameplate, etc. of industrial boilers.

Brands, signs and random documents as well as installation, commissioning, acceptance and operation.

This document applies to industrial boilers. Non-power station boilers with rated steam pressure greater than or equal to 3.8 MPa and rated working pressure less than

Hot water boilers and organic heat carrier boilers with a rated thermal power of 0.1MPa or greater and equal to 0.1MW shall be used for reference.

Note. The pressure values mentioned in this document refer to gauge pressure.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to

This document.

GB/T 1576 Industrial boiler water quality

GB 2894 Safety signs and their use guidelines

GB/T 2900.48 Electrical terminology - Boiler

GB 3096 Acoustic Environment Quality Standard

GB/T 3836 (all parts) Explosive atmospheres

GB 4053 (all parts) Safety requirements for fixed steel ladders and platforms

GB/T 10180 Thermal performance test procedures for industrial boilers

GB/T 10184 Performance test procedures for power station boilers

GB/T 10863 Thermal test methods for flue-type waste heat boilers

GB 11174 Liquefied petroleum gas

GB 12348 Industrial Enterprise Boundary Ambient Noise Emission Standard

GB 13223 Emission Standard of Air Pollutants from Thermal Power Plants

GB 13271 Boiler Air Pollutant Emission Standard

GB/T 13306 Signage

GB/T 13612 Artificial gas

GB 15605 Dust Explosion Pressure Venting Specification

GB/T 16507 (all parts) Water tube boilers

GB/T 16508 (all parts) Shell boilers

GB 16543 Safety regulations for explosion prevention of bituminous coal injection systems in blast furnaces

GB/T 16839.1 Thermocouples Part 1.Electromotive force specifications and tolerances

GB/T 17410 Organic heat carrier furnace

GB 17820 Natural Gas

GB/T 18342 Commercial coal quality chain furnace coal

GB 18485 Pollution Control Standard for Incineration of Municipal Waste

GB/T 18750 Domestic waste incinerators and waste heat boilers

GB/T 16507.3 | GB/T 16507.2 | GB/T 16507.1 | GB/T 6910 | GB/T 2900.48 | […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 3836 · GB 4053 · GB/T 16507 · GB/T 16508

Cited by

Editions of GB/T 1921

Edition	Title	Revision	Status
GB/T 1921-2025	Specification for industrial boilers	current edition	Current
GB/T 1921-2004	Parameters for industrial steam boilers	previous edition	In force
GB/T 1921-1988	Specifications for industrial steam boiler	previous edition	Obsolete

This page sells the current edition, GB/T 1921-2025. Earlier editions are listed for reference only.

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