GB/T 45462-2025 English PDF

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GB/T 45462-2025: Test methods for the performance of gas-phase air cleaning media and devices
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Basic data

Standard ID: GB/T 45462-2025 (GB/T45462-2025)
Description (Translated English): Test methods for the performance of gas-phase air cleaning media and devices
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: P48
Classification of International Standard: 91.140.30
Word Count Estimation: 54,573
Date of Issue: 2025-03-28
Date of Implementation: 10/1/2025
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 45462-2025: Test methods for the performance of gas-phase air cleaning media and devices

---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.
National Standard of the People's Republic of China ICS 91.140.30CCS P 48 Test methods for performance of gas phase air purification materials and devices Test methods for the performance of gas⁃phase air cleaning media and devices 2025-03-28 Release 2025-10-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of contents

Preface Ⅲ 1 Scope...1 2 Normative references ...1 3 Terms and Definitions 1 4 Symbols and abbreviations 3 5 Test methods for gas phase air purification materials...5 6 Test methods for gas phase air purification devices...13 7 Safety precautions...22 Appendix A (Normative) Standard sampling procedures and test parameters for various purification materials 23 Appendix B (Normative) Target gas, generation mode and test method 25 Appendix C (Informative) Schematic diagram of purification material test bench 29 Appendix D (Normative) Test bench performance, verification and maintenance requirements ...30 Appendix E (Informative) Test Report Example 33 Appendix F (Informative) Dimensionless Clean Air Volume Test Method 40 Appendix G (Informative) Design of the Purification Equipment Test Bench 44 References ...46

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 Ministry of Housing and Urban-Rural Development of the People's Republic of China. This document is under the jurisdiction of the National Technical Committee for Standardization of Heating, Ventilation, Air Conditioning and Purification Equipment (SAC/TC 143). This document was drafted by. China Academy of Building Research Co., Ltd., Tianjin University, Tsinghua University, Beijing Institute of Architectural Design Co., Ltd., Shiyuan Technology Engineering Co., Ltd., Institute of Urban Environment, Chinese Academy of Sciences, Jianke Environmental Energy Technology Co., Ltd., Nanjing Industrial University, Mekong (China) Environmental Technology Co., Ltd., Aimek Air Filter (Suzhou) Co., Ltd., Daikin (China) Investment Co., Ltd. Co., Ltd., He's (Suzhou) Special Materials Co., Ltd., Camfil Filtration Equipment (Taicang) Co., Ltd., Suzhou Youyuan Environmental Technology Co., Ltd., TAI BAO YUAN PURIFICATION LIMITED. The main drafters of this document are. Feng Xin, Pei Jingjing, Liu Junjie, Xu Ying, Lin Kunping, Yan Dong, Wu Renxiang, Zhou Shaoyang, Zhang Hui, Wang Zhiyong, Zhou Bin, Chen Ling, Bai Jing, Zhang Wenjun, Yu Lei, Cai Shi, Ji Jing, Lu Yuming, Wang Fengming, Xu Zhaowei, Yang Yuntao, Jiang Yu, Fan Yujie, He Nana. Test methods for performance of gas phase air purification materials and devices

1 Scope

This document specifies the test methods for gas phase air purification materials for conventional ventilation, the test methods for gas phase air purification devices, safety matters, etc. This document applies to gas-phase air cleaning granules, sheets and bulk cleaning materials for conventional ventilation, full-scale gas-phase air cleaning devices, and And used in purification equipment such as scrubbers, absorbers, non-adsorption equipment, and can be installed on the test bench specified in this document. device.

2 Normative references

This document has no normative references.

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 adsorption The process by which the adsorbent surface absorbs molecules or ions in the surrounding medium (gas or vapor) through physical or chemical processes. [Source. GB/T 16803-2018, 5.1.35] 3.2 Adsorbent Substances with greater adsorption capacity. [Source. GB/T 16803-2018, 5.1.36] 3.3 Bypass airflow A test gas flow that bypasses the purification device and does not come into contact with the purification material. [Source. ISO 29464.2024, 3.1.5] 3.4 Target gas challenge compound Chemicals used as target pollutants in tests. 3.5 Capacity The amount of target gas contained in a purification material or purification device under given test conditions and at a specified test termination point. Note 1.The dirt holding capacity during desorption is a negative value. Note 2.The unit is milligram (mg) or mole (mol). 3.6 challenge volume fraction The volume fraction of the target gas in the gas flow before purification (test gas flow). 3.7 Challenge air stream Dilute the test purification material and the target gas upstream of the device to a gas flow with a specified volume fraction. ......

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