GB/T 21551.1-2024 PDF English
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| GB/T 21551.1-2024 | English | 440 |
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Antimicrobial and cleaning function of household and similar electrical appliances - Part 1: General requirement
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| GB 21551.1-2008 | English | 70 |
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General requirement of antibacterial and cleaning function for household and similar electrical appliances
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GB/T 21551.1-2024: Antimicrobial and cleaning function of household and similar electrical appliances - Part 1: General requirement
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT21551.1-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 97.030
CCS Y 60
Replacing GB 21551.1-2008
Antimicrobial and Cleaning Function of Household and
Similar Electrical Appliances - Part 1.General Requirement
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... 12
5 Test Methods... 14
6 Marking and Instructions for Use... 21
Appendix A (normative) Test Method for Inhibition Ring... 23
Appendix B (informative) Common Test Methods for the Antimicrobial, Preventing
Mildew, Antiallergenic, Antiviral, Microbial Reduction, Dust Mite Reduction, Allergen
Reduction, Virus Reduction and Deodorization Functions of Household Appliances 28
Appendix C (normative) Test Method for the Deodorization Function... 30
Bibliography... 34
1 Scope
This document specifies the hygiene and safety, and functional requirements for household and
similar electrical appliances with the 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 electrical appliances (hereinafter referred to as “household appliances”) with one or
multiple functions of antimicrobia, preventing mildew, antiallergen, antivirus, microbial
reduction, dust mite reduction, allergen reduction, virus reduction and deodorization, etc. Other
electrical appliances may take this as a reference.
This document does not apply to.
---Appliances specifically designed for industrial use;
---Appliances intended for use in special environments where corrosive or explosive gases
(such as. dust, steam and methane, etc.) are often present.
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/T 4288-2018 Household and Similar Electrical Washing Machine
GB 4789.2 National Food Safety Standard - Microbiological Examination of Food. Aerobic
Plate Count
GB/T 5296.2 Instructions for Use of Products of Consumer Interest - Part 2.Household and
Similar Electrical Appliances
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 18801-2022 Air Cleaner
GB/T 18883 Standards for Indoor Air Quality
GB 19489 Laboratories - General Requirements for Biosafety
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
3 Terms and Definitions
The following terms and definitions are applicable to this document.
3.1 Antimicrobia
3.1.1 antimicrobia
The process of adopting chemical, physical and other methods to kill bacteria, fungi and other
microorganisms, or hinder their growth and reproduction, and make them inactive.
[source. WS/T 466-2014, 3.14, modified].
3.1.2 antimicrobial materials
Materials that have the functions of killing bacteria, fungi and other microorganisms, or
hindering their growth and reproduction, and making them inactive.
3.1.3 antimicrobial rate
In the antimicrobia (3.1.1) test, the reduction in the count of bacteria, fungi and other
microorganisms, which is expressed as a percentage.
3.1.4 inhibition ring
The antimicrobial agent in the material is continuously dissolved and diffused through agar to
form different gradients, thereby inhibiting the growth of bacteria around it and forming a
transparent circle.
3.1.5 preventing mildew
The process of adopting chemical, physical and other methods to kill mold or hinder its growth
and reproduction and make it inactive.
4 Technical Requirements
4.1 Hygiene and Safety Requirements
4.1.1 Hygiene and safety requirements for the whole machine
Household appliances that are explicitly stated to have the functions, such as. microbial
reduction and cleaning, have executable product-related standards, and the hygiene and safety
of the whole machine shall comply with the standards implemented by the product. If there is
no executable product-related standard, except for the special use conditions specified by the
appliance, the hazardous substances that may be produced shall all comply with the
requirements of Table 1.
4.1.2 Hygiene and safety requirements for components and parts
For materials that are explicitly stated to have the antimicrobial function and are in contact with
food or in close contact with the human body during use, the diameter of the inhibition ring
shall not be greater than 10 mm (including the diameter of the sample piece).
4.2 Requirements for Antimicrobial, Microbial Reduction and Cleaning Functions
4.2.1 Functional requirements for materials and components and parts
For materials that are explicitly stated to have the antimicrobial, preventing mildew,
antiallergenic and antiviral functions, or components and parts made of antimicrobial materials,
preventing mildew materials, antiallergenic materials and antiviral materials, the antimicrobial
rate, preventing mildew level, antiallergenic rate and antiviral rate shall comply with the special
requirements for materials and components and parts in GB/T 21551.2.
4.2.2 Functional requirements for the whole machine
4.2.2.1 Requirements for microbial reduction function
For household appliances that are explicitly stated to have the microbial reduction function, the
microbial reduction rate shall not be lower than 70%.
4.2.2.2 Requirements for dust mite reduction function
For household appliances that are explicitly stated to have the dust mite reduction function, the
dust mite reduction rate shall not be lower than 80%.
5 Test Methods
5.1 Safety Tips
Microbiological laboratories shall comply with relevant provisions of biosafety standards and
domestic regulations. The laboratories shall comply with the corresponding biosafety level
requirements in GB 19489.The laboratories shall have a biosafety protection level that is
compatible with the hazards;
5.2 Hygiene and Safety Tests
5.2.1 Hygiene and safety tests of the whole machine
5.2.1.1 Requirements for sampling points
If there are executable product-related standards for household appliances that are explicitly
stated to have the microbial reduction and cleaning functions, the hygiene and safety-related
tests shall be carried out in accordance with the methods described in the product standards.
If there are no executable product-related standards for household appliances that are explicitly
stated to have the microbial reduction and cleaning functions, the harmful substances they
produce shall be tested in accordance with the following method.
5.2.1.2 General measurement instruments
General measurement instruments for the test shall satisfy the following requirements.
5.2.1.3 Ozone leakage
The ozone leakage is tested in accordance with the following steps.
5.2.1.4 UV leakage
The UV leakage is tested in accordance with the following steps.
5.2.2 Hygiene and safety tests of components and parts
For materials that are explicitly stated to have the antimicrobial function, the inhibition ring
shall be tested in accordance with the test method described in Appendix A.
For materials that are explicitly stated to have the antimicrobial function or components and
parts containing antimicrobial materials, the toxicology test shall be carried out in accordance
with the test methods described in the relevant standards.
5.3 Antimicrobia, Microbial Reduction and Cleaning Tests
5.3.1 Test of materials and components and parts
For materials that are explicitly stated to have the antimicrobial, preventing mildew,
antiallergenic and antiviral functions, or components and parts made of antimicrobial materials,
preventing mildew materials, antiallergenic materials and antiviral materials, their
antimicrobial rate, preventing mildew level, antiallergenic rate and antiviral rate shall be tested
in accordance with the methods described in GB/T 21551.2.
5.3.2 Test methods for the whole machine
5.3.2.1 Test of microbial reduction function
Household appliances that are explicitly stated to have the microbial reduction function shall
be tested in accordance with the product standards they implement. Common microbial
reduction methods specified in the promulgated national and industry standards are shown in
Appendix B.
5.3.2.2 Test of dust mite reduction function
Household appliances that are explicitly stated to have the dust mite reduction function shall be
tested in accordance with the product standards they implement. Common dust mite reduction
methods specified in the promulgated national and industry standards are shown in Appendix B.
For household appliances that are explicitly stated to have the dust mite reduction function, if
there are no executable product-related standards, then, based on the use requirements of the
appliance, select the appropriate target for testing.
5.3.2.3 Test of allergen reduction function
Household appliances that are explicitly stated to have the allergen reduction function shall be
tested in accordance with the product standards they implement. Common allergen reduction
methods specified in the promulgated national standards and industry standards are shown in
Appendix B.
For household appliances that are clearly stated to have the allergen reduction function, if there
are no executable product-related standards, based on the use requirements of the appliance and
in accordance with the requirements of Table 4, select the appropriate target for the allergen to
be tested to conduct the test.
5.3.2.4 Test of virus reduction function
Household appliances that are explicitly stated to have the virus reduction function shall be
tested in accordance with the product standards they implement. Common virus reduction
methods specified in the promulgated national and industry standards are shown in Appendix B.
For household appliances that are explicitly stated to have the virus reduction function, if there
are no executable product-related standards, then, based on the use requirements of the
appliance and in accordance with the requirements in Table 6, select the appropriate target for
the test virus to conduct the test.
5.3.2.5 Test of deodorization function
Household appliances that are explicitly stated to have the deodorization function shall be tested
in accordance with the product standards they implement. Common deodorization methods
specified in the promulgated national standards and industry standards are shown in Appendix B.
For household appliances that are explicitly stated to have the deodorization function, if there
are no executable product-related standards, the olfactory identification method or the odor gas
removal method may be used for testing.
6 Marking and Instructions for Use
6.1 Principle
The marking and instructions for use of household appliances that are explicitly stated to have
the antimicrobial, microbial reduction and cleaning functions should reflect the true attributes
of the products, be simple and easy to understand, accurate, scientific, and in line with consumer
habits. They shall not contain explicit or implicit indications that may mislead consumers, and
shall not use false or exaggerated words.
6.2 Basic Requirements
For household appliances that are explicitly stated to have the antimicrobial, microbial
reduction and cleaning functions, the marking shall comply with the requirements of GB/T 5296.2.
6.3 Content
The instructions for use or product identifications of household appliances that are explicitly
stated to have the antimicrobial, microbial reduction and cleaning functions shall include the
following contents.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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