GB/T 40977-2021 English PDFUS$449.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 40977-2021: Clothes washing machines for household use - Method for measuring the microbial contamination reduction Status: Valid
Basic dataStandard ID: GB/T 40977-2021 (GB/T40977-2021)Description (Translated English): Clothes washing machines for household use - Method for measuring the microbial contamination reduction Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Y62 Word Count Estimation: 24,295 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 40977-2021: Clothes washing machines for household use - Method for measuring the microbial contamination reduction---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Clothes washing machines for household use - Method for measuring the microbial contamination reduction ICS 97.060 CCSY62 National Standards of People's Republic of China Test method for reducing microbial contamination of household washing machines (IEC PAS62958.2015, MOD) Released on 2021-11-26 2022-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee Table of contentsForeword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms, definitions and symbols 1 3.1 Terms and definitions 1 3.2 Symbol 2 4 Requirements 2 5 Test conditions, substances, equipment and instruments 2 5.1 Test condition 2 5.2 Materials and reagents 2 5.3 Equipment 6 6 Test 7 6.1 Test principle 7 6.2 Preparation of the washing machine to be tested 8 6.3 Preparation of test microorganisms and test specimens containing bacteria 8 6.4 Main test 9 6.5 Effectiveness 10 7 reviews 10 7.1 Log reduction 10 7.2 Cross contamination 10 8 Test report 11 Appendix A (informative) In-house research and development of the use of dangerous level 1 microorganisms to test the reduction of microorganisms in household washing machines 12 Appendix B (informative) Material and supplier information 18 Reference 19 Figure A.1 Preparation process of serial dilution solution 16 Table 1 Composition of Tryptone Soy Agar (TSA) 3 Table 2 Composition of Sabouraud's Dextrose Agar (containing chloramphenicol) 3 Table 3 Composition 4 of Bromo-Bromotrimethylammonium Agar/Cetyltrimethylammonium Bromide Agar Table 4 Baird-parker agar composition 4 Table 5 Composition of Malt Extract Agar (MEA) 4 Table 6 Composition of Tryptone Soy Broth (TSB) 5 Table 7 Composition of diluent 5 Table 8 Composition of neutralizer 5 Table 9 Specific requirements for temperature sensors 7 Table A.1 Composition of Sabouraud Dextrose Agar 13 Table A.2 Composition of Columbia CAN Agar 13ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is revised and adopted IEC PAS62958.2015 "Test Method for Reducing Microbial Contamination of Household Washing Machines", and the document type is changed by ISO The publicly available specifications are adjusted to my country’s national standards. The technical differences between this document and IEC PAS62958.2015 and the reasons are as follows. --- Deleted the three normative reference documents EN1276, EN1650 and EN12353 in Chapter 2 of the International Standard, due to related technologies The content is in the standard text; ---Delete EN12353 in International Standards 6.3.1 and A.5.3.1, and amend this paragraph to read "test microorganisms and corresponding preserved strains" It should be prepared and stored in accordance with the following requirements"; --- Deleted the title "according to EN1650" in the international standards 6.3.1.2 and A.5.3.1.2, and revised the title to "yeast suspension (white Candida) preparation"; ---Delete "According to EN1276" in the title of International Standard 6.3.1.4, and amend the title to "Bacterial Suspension (Pseudomonas putida and Golden Staphylococcus chromosome)". Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China National Light Industry Council. This document is under the jurisdiction of the National Household Appliances Standardization Technical Committee (SAC/TC46). Drafting organizations of this document. China Household Electrical Appliances Research Institute, Hefei Midea Washing Machine Co., Ltd., Wanyuan Zhongxiang Alliance Technology (Beijing) Co., Ltd. Company, Qingdao Haier Washing Machine Co., Ltd., Boshihua Electric (Jiangsu) Co., Ltd., Zhuhai Gree Electric Co., Ltd., Hisense (Shandong) Refrigerator Co., Ltd., National Household Appliances Quality Supervision and Inspection Center. The main drafters of this document. Li Yi, Xiong Ming, Yao Yanchun, Shi Yanling, Cai Lili, Liu Changyu, Zhu Guosheng, Li Shanshan. Test method for reducing microbial contamination of household washing machines1 ScopeThis document specifies a test method for testing washing machines to reduce microbial contamination and reduce cross-contamination of sterile carriers. Note. A significant difference in the reduction of microbial contamination by washing machines is that the washing temperature does not exceed 40°C. This document applies to household washing machines with or without heating devices, and the water intake is cold and/or hot water. Washing machine with detergent. The same applies to washing machines used in communities, apartments or laundromats. This document does not apply to washing machines for commercial use, as well as washing machines used in catering, hospitals or other non-domestic use. Also not included Including washing machines used by people who need special disinfection treatment or disinfection technology. This document does not involve safety requirements, nor does it contain the washing machine-related performance required in IEC 60456.2010 or the impact on fabrics. Ring and wait.2 Normative referencesThe content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. ISO 2267.Evaluation of the washing effect of surfactants. Preparation and use method of uncontaminated cotton control cloth (Surfaceactive agents-Evaluationofcertaineffectsoflaundering-Methodsofpreparationanduseofunsoiledcotton controlcloth) IEC 60456.2010 Household washing machine performance test method (Clotheswashingmachinesforhouseholduse- Methodsformeasuringtheperformance) 3 Terms, definitions and symbols 3.1 Terms and definitions The following terms and definitions apply to this document. 3.1.1 Washing machine Apparatus for washing and rinsing fabrics may also have a dehydration function. 3.1.2 Testing washing machine A washing machine that meets some or all of the requirements of this document for testing related performance. 3.1.3 Test cycle testrun Single performance test. 3.1.4 Program A series of operations that are pre-set inside the washing machine and claimed by the manufacturer to be suitable for washing a certain type of fabric. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 40977-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 40977-2021_English as soon as possible, and keep you informed of the progress. 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