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GB/T 45869-2025Technical guideline for online monitoring of boiler carbon emission (English PDF)

锅炉碳排放在线监测技术指南

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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 45869-2025 is the English-translated version of 锅炉碳排放在线监测技术指南.

GB/T 45869-2025 is the Chinese national standard covering keeping the carbon dioxide measurement of a boiler running continuously in the flue — the monitoring principle and the monitoring system, the performance indicators, the station room and the installation, the detection methods, the operation and maintenance, the review and handling of the data, and the appendices that carry the calculation, the laboratory and on-site test methods, the uncertainty assessment and the data acquisition and transmission system. First edition, with the boiler emission test method GB/T 45862-2025. In force from 1 February 2026. Issued on 1 August 2025, it has been in force since 1 February 2026.

Document preview — GB/T 45869-2025

National Standard of the People's Republic of China

ICS: 27.060.30
Classification: J 98

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

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Monitoring Principle2
5 Monitoring System3
6 Performance Indicators7
7 Monitoring Station Room10
8 System Installation10
9 Detection Methods1113
10 Operation and Maintenance13
11 Data review and processing15
Appendix A (Normative) Data Calculation and Processing17
Appendix B (Informative) Diagram of Sampling Method for Smoke Component Measurement23
Appendix C (Informative) Computational Fluid Dynamics (CFD) Numerical Simulation27
Appendix D (Normative) t0.95(n-1) Distribution30
Appendix E (Informative) Common Flue Gas Velocity Measurement Methods31
Appendix F (Normative) Laboratory Test Methods for Carbon Dioxide and Oxygen Volume Fraction Monitoring Units36
Appendix G (Normative) Monitoring System On-site Testing Method41
Appendix H (Informative) Example of Uncertainty Assessment of Monitoring Systems45
Appendix I (Normative) Data Acquisition, Processing and Transmission System51
Reference55

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.

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 for Standardization of Boilers and Pressure Vessels (SAC/TC262).

This document was drafted by: China Special Equipment Testing and Research Institute, Guangdong Special Equipment Testing and Research Institute Shunde Testing Institute, China Metrology Science and Technology Research Institute, Beijing Xuedilong Technology Co., Ltd., Qingdao Mingde Environmental Protection Instrument Co., Ltd., State Power Investment Group Jiangxi Electric Power Co., Ltd.

Xinchang Power Generation Branch, Guodian Environmental Protection Research Institute Co., Ltd., Xi'an Huadian Clean Energy Technology Co., Ltd., Xi'an Jiaotong University, Tsinghua University, Tsinghua University Shanxi Clean Energy Research Institute, Guangdong Provincial Market Supervision Administration, and Yanshan University.

The main drafters of this document are: Da Yaodong, Lu Weiye, Chang Yongqiang, Zhang Qianxuan, Xu Jun, Chen Xiaohua, Pan Guanfu, Jiang Jianzhong, Deng Lei, Ma Xiuyuan, Li Yuesheng, Peng Zhimin, Huang Zhong, Wang Yike, Zhang Yungang, Wang Qian, Liang Kui, Hang Chenzhe, and Xie Tao.

Technical Guide for Online Monitoring of Boiler Carbon Emissions

1 Scope

This document provides the monitoring principle, monitoring system, performance indicators, monitoring station, system installation, and detection methods of boiler carbon emission online monitoring.

Technical guidelines for implementation, operation and maintenance, and data review and processing.

This document applies to boilers burning fossil fuels (including those blended with non-fossil fuels).

This document does not apply to waste incineration boilers, waste heat boilers and boilers that burn only biomass.

2 Normative references

GB/T 16157

GB 50093

JJF1059.1

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1

Carbon dioxide emissions from boiler fuel combustion and its flue gas treatment process (desulfurization, denitrification, etc.).

3.2

All the equipment needed to monitor boiler carbon emission concentration and volume online.

Note. Abbreviated as “monitoring system”.

3.3 Standard state

The state when the temperature is 273K and the pressure is 101.325kPa.

Note. Abbreviated as “standard state”.

[Source. HJ76-2017, March 13, with modifications]

3.4 [Source. JJF1059.1-2012, March 12]

A non-negative parameter that characterizes the dispersion of the measured values, based on the information used.

Note. Abbreviated as “uncertainty”.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 51 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 16157Determination of particulates and sampling methods of gaseous pollutants emitted from exhaust gas of stationary source

GB 50093 · JJF1059.1

Editions of GB/T 45869

Edition	Title	Revision	Status
GB/T 45869-2025	Technical guideline for online monitoring of boiler carbon emission	current edition	Current

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