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GB/T 46027-2025Greenhouse gases — Quantification requirements and methods of product carbon footprint — Room air conditioners (English PDF)

温室气体产品碳足迹量化方法与要求房间空调器

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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 46027-2025 is the English-translated version of 温室气体产品碳足迹量化方法与要求房间空调器.

GB/T 46027-2025 is the Chinese national standard covering the greenhouse gas load carried by a room air conditioner over its life — the purpose of the quantification and the boundary of the system, the inventory analysis and the data collected for it, the calculation of the electricity consumed in the use phase, the one stage with a normative method of its own, the impact assessment in carbon dioxide equivalent, the interpretation, the report, the critical review, and the declaration. It covers T1 climate type units with an air-cooled condenser, a hermetic compressor and a rated cooling capacity of no more than 14 000 W. First edition, under the China National Light Industry Council. In force from 1 February 2026. Issued on 1 August 2025, it has been in force since 1 February 2026.

Document preview — GB/T 46027-2025

National Standard of the People's Republic of China

ICS: 97.030
Classification: Y 60

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

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Quantification Purpose3
5 Quantization range4
6 Inventory Analysis6
7 Impact Assessment10
8 Results Interpretation13
9 Product Carbon Footprint Report1315
10 Critical Review15
11 Product Carbon Footprint Statement1516
Appendix A (Informative) Example of a Carbon Footprint Quantification Scheme for Room Air Conditioner Products16
Appendix B (Informative) Data Inventory Collection Example18
Appendix C (Normative) Calculation Method for Electricity Consumption of Room Air Conditioner Products During Use Phase21
Appendix D (Informative) Product Carbon Footprint Report (Template)22
Reference27

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 is required.

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 was proposed by the China Light Industry Federation.

This document is under the jurisdiction of the National Technical Committee for Standardization of Household Electrical Appliances (SAC/TC46).

This document was drafted by: China Household Electrical Appliances Research Institute, Guangdong Midea Refrigeration Equipment Co., Ltd., Qingdao Haier Air Conditioner Co., Ltd., Gree Electric Appliances Co., Ltd. of Zhuhai, Xiaomi Smart Home Appliances (Wuhan) Co., Ltd., Panasonic Electric Research and Development (Suzhou) Co., Ltd., SGS-CSTC Standard Technical Services Co., Ltd., TCL Air Conditioner (Zhongshan) Co., Ltd., China Institute of Home Furnishings (Beijing) Testing and Certification Co., Ltd., China Quality Certification Center Co., Ltd., China Household Electrical Appliances Association, Weikai Testing Technology Co., Ltd., Suzhou Quality and Standardization Institute, Jiahe (Zhejiang) Inspection and Testing Co., Ltd.

Co., Ltd., Shenzhen Ruiju Technology Co., Ltd., Anhui Zhongren Beijia Technology Co., Ltd., Titanium and Certification (Shanghai) Co., Ltd., Beijing Zhongren Dahuayuan Certification Center Co., Ltd. and Suzhou Testing and Certification Group Co., Ltd.

The main drafters of this document are: Qu Zongfeng, Yan Ling, Wang Chan, Yan Dong, Xiong Shuyao, Lao Chunfeng, Zhang Yanli, Wang Yue, Cao Yanxin, Guan Haiqing, Wu Mei, Wu Junhong, Ouyang Huan, Xu Yi, Chen Ronghui, Dai Xingxue, Xu Jilin, Tang Zheng, Wang Tongshuai, Lü Wenqian, Liu Kaicheng, Cao Yajie, and Xia Yan.

Greenhouse gas product carbon footprint quantification method and Request room air conditioner

1 Scope

This document provides the purpose of quantifying the carbon footprint of room air conditioners (hereinafter referred to as "room air conditioners"), and specifies the scope, Inventory analysis, impact assessment, result interpretation, product carbon footprint report, critical review and product carbon footprint declaration.

This document is applicable to air-cooled condensers, fully enclosed electric compressors, rated cooling capacity not exceeding 14000W, climate type Product carbon footprint quantification of T1 room air conditioner. Other types of air conditioners and low ambient temperature with nominal heating capacity not exceeding 14000W Air source heat pump hot air blower for reference use.

2 Normative references

GB 21455-2019

GB/T 24040

GB/T 24044

GB/T 24067

3 Terms and Definitions

The terms and definitions defined in GB/T 24040, GB/T 24044 and GB/T 24067 and the following apply to this document.

3.1 room air conditionerroomairconditioner

A device that provides conditioned air to a room.

Note. It mainly includes refrigeration systems for refrigeration and dehumidification, air circulation and purification devices, and may also include heating and ventilation devices (which can be assembled in one housing or a system of components designed to be used together).

[Source. GB/T 7725-2022, 3.1.1]

3.2 Greenhouse gas greenhouse gas;GHG

The natural and human-induced atmospheric ions that absorb and emit radiation from the Earth's surface, atmosphere, and clouds.

The gaseous component of radiation with wavelengths in the infrared spectrum.

Note. Greenhouse gases include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), hexafluoroethane (PFOS), Sulfur (SF6) and nitrogen trifluoride (NF3).

[Source. GB/T 24067-2024, 3.2.1]

3.3

The sum of GHG emissions and GHG removals in the product system, expressed in CO2 equivalent, based on a single measure of climate change.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 28 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 24040 · GB/T 24044

Editions of GB/T 46027

Edition	Title	Revision	Status
GB/T 46027-2025	Greenhouse gases - Quantification requirements and methods of product carbon footprint - Room air conditioners	current edition	Current

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