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GB/T 21551.3-2024 PDF English

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GB/T 21551.3-2024: Antimicrobial and cleaning function of household and similar electrical appliances - Part 3: Particular requirements for air cleaner
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GB/T 21551.3-2024: Antimicrobial and cleaning function of household and similar electrical appliances - Part 3: Particular requirements for air cleaner


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GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 97.030 CCS Y 62 Replacing GB 21551.3-2010 Antimicrobial and Cleaning Function of Household and Similar Electrical Appliances - Part 3.Particular Requirements for Air Cleaner Issued on: DECEMBER 31, 2024 Implemented on: JANUARY 1, 2027 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China.

Table of Contents

Foreword... 3 Introduction... 6 1 Scope... 8 2 Normative References... 8 3 Terms and Definitions... 9 4 Technical Requirements... 9 5 Test Methods... 11 6 Marking and Instructions for Use... 14 Appendix A (normative) Test Method for the Microbial Reduction Function... 16 Appendix B (normative) Test Method for the Allergen Reduction Function... 23 Appendix C (normative) Test Method for the Virus Reduction Function... 27 Appendix D (normative) Test Method for the Deodorization Function... 33 Appendix E (informative) Test Method for the Number of Colonies Attached to the Surface of Cleaning Module... 36 Bibliography... 39

Foreword

This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives for Standardization - Part 1.Rules for the Structure and Drafting of Standardizing Documents. This is Part 3 of GB/T 21551 Antimicrobial and Cleaning Function of Household and Similar Electrical Appliances. GB/T 21551 has issued the following parts. ---Part 1.General requirement; ---Part 2.Particular requirements for material; ---Part 3.Particular requirements for air cleaner; ---Part 4.Particular requirements for refrigerator; ---Part 5.Particular requirements for electric washing machine; ---Part 6.Particular requirements for air conditioner. This document serves as a replacement for GB 21551.3-2010 Antibacterial and Cleaning Function for Household and Similar Electrical Appliances - Particular Requirements of Air Cleaner. In comparison with GB 21551.3-2010, apart from structural adjustments and editorial modifications, the main technical changes are as follows. ---The terms and definitions of “air cleaner”, “total volatile organic compounds TVOC” and “PM10” are deleted (see 3.1 ~ 3.3 of Version 2010); ---The applicable requirements in “limit requirements of harmful substances generated by cleaners” are added (see Table 1); ---The “requirements for the antimicrobial, microbial reduction and cleaning functions” are modified (see 4.2; 4.2 of Version 2010); ---The “requirements for the functions of materials and components and parts” and “requirements for the functions of the whole machine” are added (see 4.2.1 and 4.2.2); ---“The cleaning materials of air cleaners shall be able to be replaced or regenerated, and the cleaning devices shall be able to be cleaned and disinfected” is deleted (see 4.2.3 of Version 2010); ---The limit value of the “requirements for the microbial reduction function” is modified (see 4.2.2.1; 4.2.1 of Version 2010); ---The “requirements for the allergen reduction function”, “requirements for the virus reduction function” and “requirements for the deodorization function” are added (see 4.2.2.2 ~ 4.2.2.4); ---The “test conditions” are added (see 5.1); ---The “hygiene and safety test methods” are modified (see 5.2; 5.1 of Version 2010); ---The “test methods for the antimicrobial, microbial reduction and cleaning functions” are modified (see 5.3; 5.2 of Version 2010); ---The “basic requirements for marking” are modified (see 6.2; 6.2 of Version 2010); --- The “marking content” is added (see 6.3); ---The “Scope” in Appendix A is deleted (see A.1 of Version 2010) ---The “test principle” and “test environment and operation requirements” are added to Appendix A (see A.1 and A.2); ---3 m3 test chamber is added, and it is clarified that “in accordance with the actual situation, one test chamber or a pair of adjacent test chambers may be selected for testing” (see A.3.1); ---The test bacterial strains are modified, and “Aspergillus brasiliensis” and its required culture medium and related culture equipment are added (see A.3.3; A.3.2.1 of Version 2010); ---The “preservation and activation of test bacterial strains, and preparation of bacterial suspension” are modified, the preparation method of bacterial suspension is clarified, and the related culture and activation of Aspergillus brasiliensis, and preparation method of bacterial suspension are added (see A.4; A.3.3 of Version 2010); ---The calculation of test time is deleted (see A.3.4.8 of Version 2010); ---The requirements for rounding off significant figures are added to the “calculation results” (see A.6); ---The “test method for the allergen reduction function”, “test method for the antivirus function” and “test method for the deodorization function” are added (see Appendix B ~ Appendix D). This document was proposed by China National Light Industry Council. This document shall be under the jurisdiction of National Technical Committee 46 on Household Electrical Appliances of Standardization Administration of China (SAC/TC 46). The drafting organizations of this document. China Household Electric Appliance Research Institute (CHEARI); Zhuhai Gree Electric Appliances Co., Ltd.; Guangdong Academy of Sciences (Guangdong Detection Center of Microbiology); Shangpin Health Technology (Guangdong) Co., Ltd.; Guangdong Midea Environment Appliances Manufacturing Co., Ltd.; Jiaxing Frebang New Material Technology Co., Ltd.; CHEARI (Beijing) Certification & Testing Co., Ltd.; Qingdao Haier Refrigerator Co., Ltd.; Guangdong Midea Refrigeration Equipment Co., Ltd.; Dyson Trading (Shanghai) Co., Ltd.; Guangzhou Institute of Microbiology Group Co., Ltd.; 720 Health (Beijing) iTech Co., Ltd.; Foshan Shunde District Freudenberg Apollo Enviromental Protection Equipment Co., Ltd.; Amway (China) Co., Ltd.; DAIKIN (China) Investment Co., Ltd.; IQAIR (China) Sales and Service Co., Ltd.; Versuni (China) Investment Co., Ltd.; Xiaomi Communications Co., Ltd.; Infinitus (China) Co., Ltd.; Guangdong Huawei Testing Co., Ltd.; Shandong Xuesheng Electrical Appliance Co., Ltd.; Dongguan JingNuo Environment Science and Technology Inc.; Zhangzhou iHastek Technology Co., Ltd.; Zhejiang ERMA Environment Technology Co., Ltd.; Shenzhen Biosun Environment Protection and Technology Co., Ltd.; CVC Testing Technology Co., Ltd.; Anhui CQC-CHEARI Technology Co., Ltd.; Jiangsu AMERI ASIA Filtration Technology Co., Ltd.; Chengdu Tianyou Jingchuang Technology Co., Ltd.; Beijing Yadu Environmental Protection Technology Co., Ltd.; Haier Intelligent Technology Co., Ltd. The main drafters of this document. Ma Dejun, Zhang Xiao, Zhang Hua, Xie Xiaobao, Huang Hai, Liu Gaoyuan, Zhao Xinglei, Li Yi, Zhang Lizhi, Xu Lei, Yang Cuixia, Zhang Zhiqiang, Wan Fenlong, Yu Hua, Zhu Jixing, Qian Weijie, Luo Junhua, Li Peng, Li Rujia, Su Wei, Chen Bo, Chen Guoshuai, Wang Di, Zhao Peijing, Zhang Lisong, Wang Cheng Long, Zhao Chaoqiang, Feng Weidong, Luo Wei, Xu Yanjun, Wu Bing, Shi Zhenya, He Xiuqiong, Wang Xiaohui, Yang Jiangang, Zhang Qingling, Li Wei. The issuing of the previous versions. ---First issued in 2010 as GB 21551.3-2010; ---This is the first revision.

Introduction

GB/T 21551 Antimicrobial and Cleaning Function of Household and Similar Electrical Appliances is divided into several parts, consisting of general requirements and special requirements. Part 1 is the general requirements, and the other parts are special requirements. For household and similar electrical appliances covered by the special requirements, the requirements shall be in accordance with the relevant provisions of the special requirements. GB/T 21551 is intended to consist of the following parts. ---Part 1.General requirement. The purpose is to specify the general requirements and test methods for the antimicrobial, microbial reduction and cleaning functions of household and similar electrical appliances. ---Part 2.Particular requirements for material. The purpose is to specify the basic performance parameters and test methods for antimicrobial, preventing mildew, antiallergen and antivirus of materials and components and parts used by household and similar electrical appliances. ---Part 3.Particular requirements for air cleaner. The purpose is to specify the basic performance parameters and test methods for antimicrobia, preventing mildew, antiallergen, antivirus, microbial reduction, allergen reduction, virus reduction and deodorization of air cleaners for household and similar purposes. ---Part 4.Particular requirements for refrigerator. The purpose is to specify the basic performance parameters and test methods for antimicrobia, preventing mildew, microbial reduction, cleaning / deodorization of refrigerators for household and similar purposes. ---Part 5.Particular requirements for electric washing machine. The purpose is to specify the basic performance parameters and test methods for antimicrobia, preventing mildew, microbial reduction, dust mite reduction, allergen reduction, virus reduction and deodorization of electric washing machines for household and similar purposes. ---Part 6.Particular requirements for air conditioner. The purpose is to specify the basic performance parameters and test methods for antimicrobia, preventing mildew, microbial reduction, indoor air cleaning and self-cleaning of air conditioners for household and similar purposes. ---Part 7.Particular requirements for electrical toilet seat. The purpose is to specify the basic performance parameters and test methods for antimicrobia, preventing mildew, microbial reduction and deodorization of electrical toilet seats for household and similar purposes. ---Part 8.Particular requirements for electric storage water heater. The purpose is to specify the basic performance parameters and test methods for antimicrobia, preventing mildew and microbial reduction of electric storage water heaters for household and similar purposes. Antimicrobial and Cleaning Function of Household and Similar Electrical Appliances - Part 3.Particular Requirements for Air Cleaner

1 Scope

This document specifies the hygiene and safety, and functional requirements for household and similar air cleaners with antimicrobial, microbial reduction and cleaning functions, as well as the marking requirements, and describes the corresponding test methods. This document applies to the research, development, production and inspection of household and similar air cleaners (hereinafter referred to as “cleaners”) that have one or more of the following functions. antimicrobia, preventing mildew, antiallergen, antivirus, microbial reduction, allergen reduction, virus reduction and deodorization. NOTE. for products that have the above-mentioned functions, which are not their main functions, such as. dehumidifiers, fans and humidifiers, etc., the evaluation of their compliance with the above-mentioned functions shall refer to the relevant content of this document. The following products shall refer to this document for implementation. ---Small, portable cleaners, passenger car cleaners. This document does not apply to. ---Cleaners specifically designed for industrial use; ---Cleaners used in special environments with corrosive and explosive gases (such as. dust, steam and methane); ---Cleaners specifically designed for medical use.

2 Normative References

The contents of the following documents constitute indispensable clauses of this document through the normative references in the text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB 4789.2 National Food Safety Standard - Microbiological Examination of Food. Aerobic Plate Count GB 4789.15-2016 National Food Safety Standard - Food Microbiological Examination. Enumeration of Molds and Yeasts GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgement of Limiting Values GB/T 18204.2 Examination Methods for Public Places - Part 2.Chemical Pollutants GB/T 18801 Air Cleaner GB/T 18883 Standards for Indoor Air Quality GB 19489 Laboratories - General Requirements for Biosafety GB/T 21551.1 Antimicrobial and Cleaning Function of Household and Similar Electrical Appliances - Part 1.General Requirement GB/T 21551.2 Antimicrobial and Cleaning Function of Household and Similar Electrical Appliances - Part 2.Particular Requirements for Material GB 44498 Household and Similar Electrical Appliances - Health Technical Specification HJ 865 Technical Specification for Olfactory Laboratory Construction HJ 1262 Ambient Air and Waste Gas - Determination of Odor - Triangle Odor Bag Method QB/T 5364 Requirement and Evaluation Method of Test Chamber for Air Cleaner

3 Terms and Definitions

The terms and definitions defined in GB/T 21551.1 and GB/T 18801 are applicable to this document.

4 Technical Requirements

4.1 Hygiene and Safety Requirements 4.1.1 Hygiene and safety of whole machine The harmful substances generated by the cleaner itself shall comply with the requirements of Table 1. 4.1.2 Hygiene and safety of components and parts Materials or components and parts made of them that are explicitly stated to have the antimicrobial function and are in close contact with the human body during use shall comply with the relevant hygiene and safety requirements in GB/T 21551.1. 4.2 Requirements for Antimicrobial, Microbial Reduction and Cleaning Functions 4.2.1 Functional requirements for materials and components and parts Materials that are explicitly stated to have the antimicrobial, preventing mildew, antiallergenic and antiviral functions, or components and parts containing materials with the above-mentioned functions, shall have their antimicrobial rate, preventing mildew level, antiallergenic rate and antiviral rate in compliance with the requirements of GB/T 21551.2. 4.2.2 Functional requirements for the whole machine 4.2.2.1 Microbial reduction For cleaners that are explicitly stated to have the microbial reduction function, the microbial reduction rate shall not be lower than 90%. 4.2.2.2 Allergen reduction For cleaners that are explicitly stated to have the allergen reduction function, the allergen reduction rate shall not be less than 80%.

5 Test Methods

5.1 Test Conditions 5.1.1 General conditions Except for the special requirements specified in the appendixes of this document, the tests shall be carried out in accordance with the conditions specified in GB/T 18801. 5.1.3 Test procedures When the cleaner is tested for harmful substances, microbial reduction and cleaning, etc., it shall be operated under the normal working conditions (optimal functional mode) explicitly stated by the manufacturer. If the manufacturer does not specify, it shall be operated at the maximum wind speed gear and all relevant functions shall be turned on. 5.1.4 Placement position The tests shall be carried out in accordance with the methods described in GB/T 18801. 5.2 Hygiene and Safety Test 5.2.1 Hygiene and safety tests of the whole machine 5.2.1.1 Arrangement of sampling points During the hygiene and safety test of the whole machine, when the test position is the air outlet, in the middle of the specified distance perpendicular to the air outlet direction of the plane where the air outlet is located, arrange 1 sampling point. If the appliance has multiple air outlets, then, arrange a sampling point at each air outlet, and the concentration of each air outlet is simultaneously tested. When the test position is around the appliance, the sampling point is perpendicular to the center plane of the cleaner. 5.2.1.2 Ozone leakage The ozone leakage is tested in accordance with the following steps. 5.2.1.3 UV leakage The UV leakage is tested in accordance with the following steps. a) The test shall be conducted in an environment without obvious air flow; b) The main wavelength of the UV leakage test is 253.7 nm. If the cleaner explicitly states ultraviolet light of other main wavelengths, then, in addition to the main wavelength test, the UV leakage of the explicitly stated wavelengths shall also be measured; c) When testing the UV leakage around the cleaner, the cleaner to be tested needs to be placed in a dark room (with a black radiation barrier to minimize reflection and stray light); d) Start the test procedures of the cleaner to be tested, after 5 minutes, measure the ultraviolet illuminance; e) Test result. the maximum value among all points is taken as the test result. 5.2.1.4 TVOC mass concentration The TVOC mass concentration is tested in accordance with the following steps. a) The test shall be conducted in an open environment without obvious air flow; b) TVOC mass concentration can be sampled and tested by the solid adsorption-thermal desorption-gas chromatography-mass spectrometry method specified in GB/T 18883; it can also be tested by an online gaseous pollutant mass concentration tester, and the sampling time should be 45 minutes; the TVOC mass concentration measured during this period is taken as the background mass concentration, which is recorded as C0 and expressed in (mg/m3). When testing the background mass concentration, the cleaner to be tested shall be in an unpowered state; c) Start the test procedures of the cleaner to be tested and start sampling at the same time. The sampling time is consistent with the background mass concentration test time. The TVOC mass concentration measured during this period is recorded as C1 and expressed in (mg/m3); d) Test result. the test result is the TVOC mass concentration C1 generated by the cleaner minus the background TVOC mass concentration C0.If there are multiple points, the maximum value of all points is taken as the final result. 5.2.1.5 PM10 mass concentration The PM10 mass concentration is tested in accordance with the following steps. a) The test shall be conducted in an environment without obvious air flow; b) PM10 mass concentration is tested using the light scattering method specified in GB/T 18204.2.Turn on the particulate matter mass concentration tester to test the background PM10 mass concentration. Set the sampling frequency to 1 time/min, and the sampling time should be 20 minutes. Take the average PM10 mass concentration measured during this period as the background mass concentration, which is recorded as C0 and expressed in (mg/m3). When testing the background mass concentration, the cleaner to be tested shall be in an unpowered state. c) Start the test procedures of the cleaner to be tested and start sampling at the same time. The sampling frequency and sampling time are consistent with the background mass concentration test. The average PM10 mass concentration measured during this period is recorded as C1 and expressed in (mg/m3); d) Test results. the test result is the PM10 concentration C1 generated by the cleaner minus the background PM10 concentration C0.If there are multiple points, the maximum value of all points is taken as the final result. 5.2.2 Hygiene and safety test of components and parts Cleaners that are explicitly stated to have the materials with the antimicrobial function or components and parts with the antimicrobial materials shall be tested in accordance with the methods described in GB/T 21551.1.

6 Marking and Instructions for Use

6.1 Principles 6.1.1 Product marking for cleaners that are explicitly stated to have the antimicrobial, microbial reduction and cleaning functions should comply with the requirements of GB/T 21551.1. 6.1.2 The cleaners should explicitly state in the product marking or instructions for use that they have the functions and indicators specified in this document, as well as the cycle and methods of replacement, cleaning and regeneration, etc. of the materials or components and parts used. 6.2 Basic Requirements 6.2.1 Cleaners using the marking shall comply with the relevant hygiene and safety requirements in 4.1. 6.2.2 Cleaners that meet one or more of the requirements in 4.2 may use text descriptions, such as. “antimicrobia”, “preventing mildew”, “antiallergen”, “antivirus”, “microbial reduction”, “allergen reduction”, “virus reduction” and “deodorization” on product packaging box, nameplates and instructions for use, etc. 6.3 Contents The following contents shall be included in the marking or instructions for use of cleaners with the antimicrobial, preventing mildew, antiallergenic, antiviral, microbial reduction, allergen reduction, virus reduction and deodorization functions. a) The categories of functions of the cleaners and the technical indicators they achieve [including test time, test chamber volume, special function programs or gears (if any)]; b) The names of the pollutants corresponding to the parameters shall be indicated; c) The replacement cycle or cleaning method of the relevant antimicrobial, preventing mildew, antiallergenic, antiviral, microbial reduction, allergen reduction, virus reduction and deodorization materials or components and parts used; d) The cleaners shall list the names of specific positions and components and parts that have the antimicrobial, preventing mildew, antiallergenic and antiviral functions; e) The cleaners shall indicate the main technologies or principles of antimicrobia, preventing mildew, antiallergen, antivirus, microbial reduction, allergen reduction, virus reduction and deodorization (such as. high-efficiency filtration, ultraviolet sterilization and ozone sterilization, etc.) used. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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