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GB/T 22758-2008 English PDF

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GB/T 22758-2008: Test methods for reliability of household electric washing machine
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PDF similar to GB/T 22758-2008


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Basic data

Standard ID GB/T 22758-2008 (GB/T22758-2008)
Description (Translated English) Test methods for reliability of household electric washing machine
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Y60
Classification of International Standard 97.060
Word Count Estimation 13,174
Date of Issue 2008-12-30
Date of Implementation 2009-07-01
Regulation (derived from) National Standard Approval Announcement 2008 No.24 (Total No.137)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the requirements of reliability qualification and reliability testing and acceptance testing of household electric washing machines, trial, fault analysis and statistics, judgment test results, test records and test reports. This standard applies to the rated capacity of not more than 13kg washing of household electric washing machines (including dehydration. Dryers are not included). For washer-dryer laundry can only verify the reliability of its functional parts.

GB/T 22758-2008: Test methods for reliability of household electric washing machine

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Test methods for reliability of household electric washing machine ICS 97.060 Y60 National Standards of People's Republic of China Household washing machines Reliability Test Method Posted 2008-12-30 2009-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and symbols 1 General Description 3 4 5 3 Test Requirements Test Method 5 6 Fault analysis and statistical processing 7 6 Determination of test results 6 8 9 Test records and reports 6 Appendix A (informative) Typical trouble and classification 8 The formula in Appendix B (Informative Appendix) MTBF verify the value of 9

Foreword

The Standard Annexes A and B are informative appendices. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee appliances (SAC/TC46) centralized. This standard is mainly drafted by. Haier Group, China Household Electrical Appliances Research Institute, Guangzhou CVC certification testing Ltd., China Household Electric Association, Suzhou Samsung Electronics Co., BSH Electrical Appliances (Jiangsu) Co., Ltd., Wuxi Little Swan Co., Ltd., Matsushita Electric of living House Appliances (Hangzhou) Co., Ltd., Ningbo Xinle Household Appliances Co., Ltd. Ningbo Chen Jia Electric Co. The main drafters of this standard. Gu Yumei, Wang Ruixian, Zhuyao Chang Dai Chi Chuang, Zhao Weibo Zhang-sequence star, Jiang Feng, Xie Zhuang Germany, Ding Xudong, Zhang, Zhuang Ling, Gongjian Meng, Wang Xi, Shen Li double, Li Xiaodong, Zhang Shaojun. This standard is the first release. Household washing machines Reliability Test Method

1 Scope

This standard specifies requirements for reliability test qualification and acceptance test reliability of household electric washing machines, testing, failure analysis and process Statistics, judgment, the test records and report test results. This standard applies to the rated washing capacity of not more than 13kg of household electric washing machines (including dehydration machines, dryers are not included). for Washer-dryer can only verify the reliability of their laundry functional part.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 2422 electric and electronic products environmental testing terminology (GB/T 2422-1995, eqv IEC 60068-5-2.1990) GB/T 3187 reliability, maintainability terms (GB/T 3187-1994, IEC 60050-191.1991, IDT) GB/T 4086.2 Tables for statistical distributions χ distributed GB/T 4288-2003 household electric washing machines GB 4706.24 Particular requirements for household and similar electrical appliances washing machines (GB 4706.24-2000, eqv IEC 60335-2-7.1993) GB 4706.26 Particular requirements for household and similar electrical appliances - Safety centrifugal dewatering machine (GB 4706.26-2000, eqv IEC 60335-2-4.1993) GB/T 5080.4 Equipment reliability testing reliability test of the measurement point estimates and confidence intervals method (exponential distribution) (GB/T 5080.4-1985, neqIEC 60605-4. 1978) GB/T 5080.7 Equipment reliability testing efficiency constant failure rate assumption under the MTBF of test plans (GB/T 5080.7-1986, IEC 60605-7. 1978, IDT)

3 Terms and symbols

GB/T 2422 and GB/T 3187 and established the following terms and definitions apply to this standard. 3.1 Terms 3.1.1 Product under specified conditions and within the specified time interval to complete the required function capability. 3.1.2 Adjacent average working time between two failures, called MTBF. It only applies to repairable products. This standard, MTBF of the unit are expressed in cycles. 3.1.3 Under the experimental conditions, the possible range of real MTBF. That is, under the provisions of the confidence interval of MTBF estimate. Confidence in the area

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