Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed according to the rules given in GB/T 1.1-2009.
This standard was proposed by China National Light Industry Council.
This standard is under the jurisdiction of National Technical Committee on Household Electric Appliances of Standardization Administration of China (SAC/TC 46).
This standard is issued for the first time.
Requirement and test method for antibacterial and eliminating bacterial function for household and similar electrical dish washers
1 Scope
This standard specifies the terms and definitions, requirements, test methods and marking of antibacterial and eliminating bacterial function for household and similar electrical dish washers (hereinafter referred to as "dish washer").
This standard is applicable to household and similar dish washers with antibacterial and eliminating bacterial function, as indicated on the appliance or in the instructions for use.
2 Normative references
The following documents for the application of this document are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 411 Printed and dyed cotton fabric
GB 1355-1986 Wheat flour
GB 4789.2 National food safety standard - Food microbiological examination - Aerobic plate count
GB 5296.2 Instructions for use of products of consumer interest - Part 2: Household and similar electrical appliances
GB 19489 Laboratories - General requirements for biosafety
GB/T 20290-2006 Electric dishwashers for household use - Methods for measuring the performance
GB 21551.1 General requirement of antibacterial and cleaning function for household and similar electrical appliances
GB 21551.2-2010 Antibacterial and cleaning function for household and similar electrical appliances - Particular requirements of material
3 Terms and definitions
For the purposes of this standard, the terms and definitions specified in GB 21551.1 as well as the followings apply.
3.1
dish washer
appliance used to clean and rinse the dish, glassware, cutlery and cooking utensils using chemical, mechanical, thermal, and electric energy, and it may or may not be subject to drying operation at the end of the program
3.2
antibacterial
process of killing microorganisms or hindering their growth and reproduction and their activity by chemical, physical and other methods, which is classified into two types of processes: antibacterial and antifungal (also known as mildew prevention).
3.3
eliminating bacterial
process of eliminating or reducing the microorganisms on the action object by chemical and physical methods.
3.4
preventing mildew level
mildew-growing level is used to indicate the mildew preventing effect in the preventing mildew test.
3.5
eliminating bacterial activity
the difference between the logarithmic values of the viable counts of the specific microorganism recovered by the action object before and after the eliminating bacterial test
3.6
place settings
private sets of chinaware, glassware and cutlery
3.7
serving pieces
sets of chinaware and cutlery applied to public service as required
Note: refer to GB/T 20290-2006, Annexes A and B for the specific requirements of tableware.
4 Requirements
4.1 Antibacterial performance
For dish washer with antibacterial function, the antibacterial rate of antibacterial parts shall not be less than 99.0% or the preventing mildew level is Level 0 or 1.
Antibacterial is only evaluated for materials used in appliances.
4.2 Eliminating bacterial performance
For the dish washer with eliminating bacterial function, the eliminating bacterial rate shall not be less than 99.9% (namely, the eliminating bacterial activity shall not be less than 3.0).
5 Test methods
5.1 Test environment
The environment of laboratory shall meet the relevant requirements of GB 19489.
5.2 Antibacterial test method
5.2.1 For non-water-absorbing antibacterial parts which may be made into a certain area, the test shall be carried out according to the method of GB 21551.2-2010, Annex A.
5.2.2 For water-absorbing antibacterial parts which may be made into a certain area, the test shall be carried out according to the method of GB 21551.2-2010, Annex B.
5.2.3 For antibacterial parts with irregular shapes, see Annex A hereof.
5.2.4 For parts with preventing mildew (antifungal) function, the test shall be carried out according to the method of GB 21551.2-2010, Annex C.
5.3 Eliminating bacterial test method
See Annex B for eliminating bacterial method.
6 Marking
6.1 Principles, requirements and contents of marking
Principles, requirements and content of marking shall be in accordance with GB 5296.2 and GB 21551.1.
6.2 Use of antibacterial and eliminating bacterial signs
For dish washer meeting the requirements of 4.1, “antibacterial” may be marked on the product and packaging box.
For dish washer meeting the requirements of 4.2, “eliminating bacterial” may be marked on the product and packaging box.
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test methods
6 Marking
Annex A (Normative) Antibacterial test method
Annex B (Normative) Eliminating bacterial test method
