GB/T 33724-2017 English PDF

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GB/T 33724-2017: Horology -- Procedure for evaluating the accuracy of quartz watches
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33724-2017	299	Add to Cart	4 days	Horology -- Procedure for evaluating the accuracy of quartz watches	Valid

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Basic data

Standard ID: GB/T 33724-2017 (GB/T33724-2017)
Description (Translated English): Horology -- Procedure for evaluating the accuracy of quartz watches
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y11
Classification of International Standard: 39.040.10
Word Count Estimation: 15,180
Date of Issue: 2017-05-12
Date of Implementation: 2017-12-01
Quoted Standard: GB/T 3359-2009; GB/T 4028
Adopted Standard: ISO 10553-2003, MOD
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 evaluation procedure for the accuracy of single and batch quartz watches, as well as the relationship between the accuracy of the measurement and the accuracy level given by the manufacturer. The statistical evaluation of batch accuracy is given in Appendix A. This standard applies to quartz watches with precision instructions.

GB/T 33724-2017: Horology -- Procedure for evaluating the accuracy of quartz watches

---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.
Horology - Procedure for editing the accuracy of quartz watches ICS 39.040.10 Y11 National Standards of People's Republic of China Watch the steps of quartz watch accuracy (ISO 10553..2003, MOD) 2017-05-12 released 2017-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the re-drafting method to modify the accuracy of ISO 10553..2003 "watch the accuracy of quartz watch steps." The technical differences between this standard and ISO 10553..2003 are as follows. --- This standard is based on the current international standard and the use of convenience standards, with the reference to the international standard of the corresponding relationship China's national standard replaces international standards (see Chapter 2); --- The values of k2 in Table A.2 are corrected in accordance with Table D.4 in Appendix D of GB/T 3359-2009 (see Table A.2); --- replace the international standard in the reference with our national standard with corresponding relationship (see reference). This standard is proposed by the China Light Industry Federation. This standard by the National Standardization Technical Committee (SAC/TC160) centralized. The main drafting of this standard. light industry watches and clocks Institute, Fiyta (Group) Co., Ltd., Shenzhen Titan watch technology has (Shenzhen) Co., Ltd., according to wave boutique (Shenzhen) Co., Ltd., Shenzhen Lang Lang star Electronics Co., Ltd., Shenzhen City, Georgia Table Co., Ltd., Zhangzhou City Hengli Electronics Co., The main drafters of this standard. Jin Yingshu, Bao Xianyong, Guo Didi, He Guangxian, Deng Jianjun, Wang Yongning, Guo Xingang, Li Yuzhong, Zhang Keli, Yang Li, Zhong Fei, Shi Fangzong, Wang Shitong, Sha Linkai, Shao Yueming. Watch the steps of quartz watch accuracy

1 Scope

This standard specifies the procedure for the accuracy of single and batch quartz watches, as well as the accuracy of the measurement and the accuracy level given by the manufacturer The relationship between. The statistical evaluation of batch accuracy is given in Appendix A. This standard applies to quartz watches with precision instructions.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 3359-2009 Statistical processing and interpretation of data Statistical tolerance intervals (ISO 16269-6..2005, IDT) GB/T 4028 timing equipment inspection position mark (GB/T 4028-2013, ISO 3158. 1976, IDT)

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Quartz watch with precision indication quartzwatchwithaccuracyindication In the use of manuals, manuals, labels and other accompanying documents, marked the accuracy of the quartz watch. 3.2 Indicates the precision level of the indicated signaccuracyclassification Under standard test conditions, subject to the actual factors described in Chapter 5, according to the method specified in Chapter 7 to assess the accuracy. 3.3 Indicates display Indicating the time of the division of the precision, and at least one element indicating the second to check the indication difference (taking into account the accuracy level is in seconds Said).

4 symbols and units

Aging, temperature simulation and accuracy of the symbols and measurement units in Table 1. Table 1 Symbols and units of measurement Symbol unit explanation Ageing The coefficient of the logarithmic function used for a d-1 The coefficients of the logarithmic function used by cs/d td d time interval MB s/d Aging test The average daily difference in the first 3 days (stage II) ......

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