GB/T 38021-2019
Analogue quartz clocks—Timing accuracy (English Version)
- Standard No.
- GB/T 38021-2019
- Language
- Chinese, Available in English version
- Release Date
- 2019
- Published By
- 国家市场监督管理总局、中国国家标准化管理委员会
- Latest
- GB/T 38021-2019
- Scope
- This standard specifies the basic parameter requirements and test methods for the accuracy of analog quartz clocks (hereinafter referred to as quartz clocks). This standard is applicable to analog quartz table clocks and wall clocks with a crystal oscillator frequency of 32768Hz and a nominal voltage of DC1.5.V. Analog quartz clock movements can also be used by reference. This standard does not apply to the following quartz clocks; ——clocks specifically used on aircraft, ships, vehicles and other equipment; ——clocks matched with other products; ——radio-controlled clocks.
GB/T 38021-2019 history
- 2019 GB/T 38021-2019 Analogue quartz clocks—Timing accuracy
