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GB/T 20042.8-2026Proton exchange membrane fuel cells — Part 8: Technical requirements for the control system (English PDF)

质子交换膜燃料电池　第8部分：控制系统技术要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 2, 2026

Implementation date

February 1, 2027

Scope

GB/T 20042.8-2026 is the English-translated version of 质子交换膜燃料电池　第8部分：控制系统技术要求.

GB/T 20042.8-2026 is the Chinese national standard covering the control system of a PEM fuel cell — the management of hydrogen and air supply, humidity, temperature and load, the start-up and shutdown sequences, the protections and the diagnostics.

The control system is what keeps the membrane in the narrow window where it works and out of the conditions that destroy it. Part 8 of the series, first edition of this part, published alongside GB/T 47668-2026 on fuel cell system noise.

It was issued on 2 July 2026 and takes effect on 1 February 2027, as a first edition. The document is under the responsibility of the China Electrical Equipment Industry Association.

This page is published from the official record of the 2026 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

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Document preview — GB/T 20042.8-2026

National Standard of the People's Republic of China

ICS: 27.070
Classification: K 82

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

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Technical requirements
6 Test methods
Annex A (informative) Evaluation report
Annex B (informative) Control error
References

3 Terms and definitions

4 Symbols and abbreviations

5 Technical requirements

6 Test methods

Foreword

This document was issued on 2 July 2026 by the State Administration for Market Regulation and the Standardization Administration of the People's Republic of China, and takes effect on 1 February 2027.

It is the first edition of this standard.

The document is under the responsibility of the China Electrical Equipment Industry Association.

Classification: ICS 27.070, CCS K 82.

3 Classification and status

GB/T 20042.8-2026 is classified under ICS 27.070, in the field of energy and heat transfer engineering. ICS is the International Classification for Standards, the same scheme used by ISO and by the national bodies of most countries, which is what allows a Chinese standard to be placed beside its foreign counterparts on subject rather than on number.

Its Chinese Standard Classification code is CCS K 82. CCS is the domestic scheme, a letter for the sector and two digits for the subject within it, and it is the code by which the standard is filed and searched in China.

The GB/T prefix marks a recommended national standard. It is not, in itself, law: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it. In practice that covers most of the cases in which it will be read — a purchase specification, an inspection agreement or a certification scheme.

The document is under the responsibility of the China Electrical Equipment Industry Association, which is the body that maintains it and that will answer a formal question about its interpretation.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

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