Partners save 15% on every standard

Valid

GB/T 45462-2025Test methods for the performance of gas-phase air cleaning media and devices (English PDF)

气相空气净化材料及装置性能试验方法

Open the GB/T 45462-2025 preview as PDF

Preview — first pages of GB/T 45462-2025 (full document: 44 pages)

This is a limited preview

Buy now to download the full PDF (44 pages)

Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 28, 2025

Implementation date

October 1, 2025

Scope

GB/T 45462-2025 is the English-translated version of 气相空气净化材料及装置性能试验方法.

GB/T 45462-2025 is the Chinese national standard covering how well a sorbent removes gases rather than particles — the target gas and the way it is generated, the challenge volume fraction and the challenge air stream, the capacity held at a stated end point, the bypass airflow that never touches the medium and so caps what any device can reach, the test bench and its verification, and the separate methods for loose media and for full-size devices. First edition, under the Ministry of Housing and Urban-Rural Development. In force from 1 October 2025. Issued on 28 March 2025, it has been in force since 1 October 2025.

Document preview — GB/T 45462-2025

National Standard of the People's Republic of China

ICS: 91.140.30
Classification: P 48

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

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Symbols and abbreviations3
5 Test methods for gas phase air purification materials5
6 Test methods for gas phase air purification devices13
7 Safety precautions22
Appendix A (Normative) Standard sampling procedures and test parameters for various purification materials23
Appendix B (Normative) Target gas, generation mode and test method25
Appendix C (Informative) Schematic diagram of purification material test bench29
Appendix D (Normative) Test bench performance, verification and maintenance requirements30
Appendix E (Informative) Test Report Example33
Appendix F (Informative) Dimensionless Clean Air Volume Test Method40
Appendix G (Informative) Design of the Purification Equipment Test Bench44
References46

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.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 44 pages — is available in the English PDF.

Editions of GB/T 45462

Edition	Title	Revision	Status
GB/T 45462-2025	Test methods for the performance of gas-phase air cleaning media and devices	current edition	Current

This page sells the current edition, GB/T 45462-2025. Earlier editions are listed for reference only.

How to Buy GB/T 45462-2025

1Add to cart. Click the "Buy GB/T 45462-2025" button on this page. You can add more standards before checkout.
2Checkout. Enter your email and billing details. Payment is processed securely by Stripe (cards, Apple Pay, Google Pay supported).
3Instant delivery (0–9 sec). Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4Invoice included. A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.