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GB/T 22780-2017: Liquid crystal displaying quartz watches
Status: Valid GB/T 22780: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 22780-2017 | English | 359 |
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4 days [Need to translate]
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Liquid crystal displaying quartz watches
| Valid |
GB/T 22780-2017
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| GB/T 22780-2008 | English | 639 |
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3 days [Need to translate]
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Liquid crystal displaying quartz watches
| Obsolete |
GB/T 22780-2008
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PDF similar to GB/T 22780-2017
Basic data | Standard ID | GB/T 22780-2017 (GB/T22780-2017) | | Description (Translated English) | Liquid crystal displaying quartz watches | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y11 | | Classification of International Standard | 39.040.10 | | Word Count Estimation | 18,178 | | Date of Issue | 2017-10-14 | | Date of Implementation | 2018-05-01 | | 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 | GB/T 22780-2017: Liquid crystal displaying 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.
Liquid crystal displaying quartz watches
ICS 39.040.10
Y11
National Standards of People's Republic of China
Replacing GB/T 22780-2008
LCD quartz watch
2017-10-14 Published
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 22780-2008 "liquid crystal quartz watch", compared with GB/T 22780-2008, the main editorial changes
And technical changes are as follows.
--- Modify the "scope" (see Chapter 1);
--- Modify the "normative references" (see Chapter 2);
--- Revised "reliability requirements" (see 3.3);
--- Modify the "instantaneous difference" and "average instantaneous difference" and "temperature coefficient" index value (see Table 1);
--- Modify the "light resistance properties" requirements and test methods (see 3.13,4.4.13);
--- Increasing the "antistatic properties" requirements and test methods (see 3.14,4.4.14);
--- Modify the "appearance" requirements (see 3.15.3);
--- Modify the "equipment" (see 4.3);
--- Added "waterproof performance" factory inspection items (see Table 3);
--- Modify the need for type inspection special circumstances (see 5.2.4);
--- Modify the "packaging" (see 6.2.2);
--- Modify the "timing accuracy" of the measurement period (see A.1.3.2);
--- Added additional features "factory inspection" and "type test" test items failed classification (see Table A.1, Table A.2).
This standard proposed by the China Light Industry Federation.
This standard by the National Clock Standardization Technical Committee (SAC/TC160) centralized.
This standard was drafted unit. Fuzhou Yi Mei Electronics Co., Ltd., Shenzhen Hua Ming Watch Co., Ltd. Shenzhen Titan clock technology limited
Company, Shenzhen Nanocrystalline Microelectronics Co., Ltd., Shishi City, Xin Jia Electronics Co., Ltd., Shenzhen Jun Sida Industrial Co., Ltd., Zhejiang Zhuoyue Electric
Ltd., Lang Lang Xingke Electronics Co., Ltd. of Shenzhen City, Institute of Light Industry Watch.
The main drafters of this standard. Chen Zuyuan, Ma Ying, Chen Zhendong, He Guangxian, Zhang Qian, Zhao Shirei, Li Ping, Liu Zhong, Ren Longbiao, Wang Jian Shi Fangzong,
Wang Shitong, Kim Young-shu, Chen Bin.
This standard replaces the standards previously issued as.
--- GB/T 22780-2008.
LCD quartz watch
1 Scope
This standard specifies the liquid crystal quartz watch (hereinafter referred to as "LCD watch") requirements, test methods, inspection rules and signs, packaging, transportation
Lose, store
This standard applies to quartz resonators, the nominal operating voltage DC1.50V or DC3.0V, with the time and date display or its
He attached a functional LCD watch. Do not wear in the hands of the liquid crystal display class and watch quartz movement can also refer to the use of.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 2828.1 Sampling procedures for sampling inspection - Part 1. Batch inspection sampling plan retrieved by acceptance quality limit (AQL)
GB/T 2829 cycle test count sampling procedures and tables (for the stability of the test process)
GB/T 4028 timing device inspection position markings
GB/T 17626.2 Electromagnetic compatibility test and measurement techniques Electrostatic discharge immunity test
GB/T 30106 watch waterproof watch
QB/T 1898 watch shock watch
3 requirements
3.1 working temperature
LCD Watch 0 ℃ ~ 50 ℃ in the temperature range should not stop running, the LCD should be normal.
3.2 voltage range
Nominal operating voltage DC3.0V LCD watch, DC3.2V ~ DC2.7V within the voltage range should not stop, the LCD should
normal.
Nominal operating voltage DC1.50V LCD watch, DC1.55V ~ DC1.25V voltage range should not stop walking, LCD
Show should be normal.
3.3 Use reliability
LCD watch should not stop under normal conditions of use, the LCD should be normal, the function keys should be flexible and reliable, zero, Department, components should not be
Line off.
3.4 instantaneous instantaneous difference m and average instantaneous difference m-
LCD watch instantaneous instantaneous difference m and average instantaneous difference m- should be consistent with the provisions of Table 1.
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