Detail of GB/T 21551.6-2024

Introduction of GB/T 21551.6-2024

GB/T 21551.6-2024 Antimicrobial and cleaning function of household and similar electrical appliances - Part 6: Particular requirements for air conditioner 1 Scope This document specifies hygienic safety and functional requirements, as well as marking requirements, for household and similar air conditioners with antimicrobial, bactericidal and cleaning functions and describes the corresponding test methods. This document is applicable to the production, inspection and sales of household and similar air conditioners that have one or more functions, e.g., antimicrobial, mold prevention, bactericidal, indoor air cleaning and self-cleaning (hereinafter referred to as “air conditioners”). 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB 4789.2 National food safety standard - Food microbiological examination - Aerobic plate count GB/T 7725 Room air conditioner 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/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/T 21551.3 Antimicrobial and cleaning function of household and similar electrical appliances - Part 3: Particular requirements for air cleaner GB 44498 Household and similar electrical appliances - Health technical specification 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB 21551.1, GB/T 7725 and the following apply. 3.1 self-cleaning process of removing or reducing microorganisms from the interior of an air conditioner's indoor unit (positions such as filters, evaporators, fans, air guide vanes, etc.) using physical or chemical methods such as UV lamps and negative ions 3.2 self-cleaning rate percentage used for expressing reduction in the number of microorganisms in the self-cleaning test 3.3 indoor air cleaning process of significantly reducing the concentration of particulate matter or gaseous pollutants, e.g., formaldehyde, benzene and TVOC, in the air by self circulating of the air indoors, using certain techniques or methods 3.4 clean air delivery rate; CADR Q parameter of the capacity of an air conditioner with indoor air cleaning function for cleaning target pollutants (particulate matter or gaseous pollutants) under specified conditions, which indicates the rate at which the air conditioner provides clean air [Source: GB/T 18801-2022, 3.8, modified] 3.5 cumulate clean mass; CCM parameter of the cumulative capacity of an air conditioner with indoor air cleaning function for cleaning target pollutants (particulate matter or gaseous pollutants) under specified conditions, which indicates the total mass of target pollutants that are cleaned cumulatively as the clean air delivery rate of the air conditioner is attenuated to 50% of its initial value [Source: GB/T 18801-2022, 3.9, modified] 4 Technical requirements

Contents of GB/T 21551.6-2024

Foreword i Introduction iii 1 Scope 2 Normative references 3 Terms and definitions 4 Technical requirements 5 Test methods 6 Marking and instructions for use Annex A (Normative) Self-cleaning performance test method Bibliography