GB21551.4-2010
Antibacterial and cleaning function for household and similar electrical appliances - Particular requirements of refrigerator
家用和类似用途电器的抗菌、除菌、净化功能 电冰箱的特殊要求
GB 21551.4-2010 is a current mandatory Chinese national standard for Antibacterial and cleaning function for household and similar electrical appliances - Particular requirements of refrigerator. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Sep 15, 2011.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to household and similar refrigerators, including freezers and refrigerator-freezers, that possess antibacterial functions or deodorization devices. It specifies the hygiene requirements, testing methods, and marking for these appliances. This standard is mandatory for all manufacturers of antibacterial refrigerators entering the Chinese market. It should be used in conjunction with GB 21551.1-2008.
Technical requirements
The standard outlines several mandatory technical requirements for antibacterial refrigerators. First, it sets hygiene safety and toxicological requirements, demanding that new materials pass acute oral toxicity, skin irritation, and eye irritation tests. Manufacturers must ensure all applied materials meet these strict toxicological limits. Regarding antibacterial performance, the standard requires that main components exhibit an antibacterial rate of ≥90% against Staphylococcus aureus and Escherichia coli after 18-24 hours of contact. For mold prevention, the materials must achieve a mold resistance grade of 0 to 1. For deodorization, the appliance must demonstrate an adsorption or decomposition rate of ≥90% for methyl mercaptan and trimethylamine. Additionally, the standard regulates hazardous substance leakage, specifying that ozone concentration and UV intensity around the unit must not exceed defined limits. The UV generating device must automatically stop when the refrigerator door is opened.
Testing methods
Testing methods include toxicological assessments conducted according to the Disinfection Technical Specification (2002). Material antibacterial performance is tested based on GB 21551.2-2010. For deodorization testing, specific gases are introduced into the sealed refrigerator, and residual concentrations are measured using gas chromatography methods referenced in GB/T 14678 and GB/T 14676. Hazardous substance leakage, such as ozone and UV intensity, is measured using specified photometric and disinfection standard procedures.
FAQs
What products are regulated under GB 21551.4-2010?
It regulates household and similar refrigerators, freezers, and refrigerator-freezers that have antibacterial or deodorization functions.
What is the required antibacterial rate for materials under this standard?
The main components must have an antibacterial rate of ≥90% against Staphylococcus aureus and Escherichia coli, and a mold resistance grade of 0 to 1.
Are there specific safety requirements for UV and ozone in these refrigerators?
Yes, the standard limits ozone concentration and UV intensity leakage around the unit. The UV device must cease operation when the door is opened.
The summary above provides a high-level overview of GB 21551.4-2010. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 21551.4-2010 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Health and hygiene
- CCS
- Y61
- ICS
- 97.040.30
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- Ministry of Industry and Information Technology