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| Chinese National Standard Category: Time and Frequency Measurement |
| English Title: | Standard Digital Clock |
| Chinese Title: | 标准数字时钟检定规程 |
| Standard No.: | JJG 722-1991 |
| Category No.: | A57 |
| Issued by: | State Technical Supervision Bureau |
| Issued on: | 1991-03-04 |
| Implemented on: | 1991-12-1 |
| Status: | superseded |
| Superseded by: | JJG 722-2018 Standard Digital Clocks |
| Superseded on: | 2018-8-27 |
| Abolished on: | |
| Superseding: | |
| Word Count: | 5000 words |
| Similar Standards: | GB/T 13823.11-1995 GB/T 39724-2020 JJG 771-2010 JJG 488-2008 JJG 723-2008 JJF 1206-2008 JJF 1193-2008 JJG 2007-2007 JJF 1180-2007 JJG 603-2006 JJG 545-2006 GB/T 20485.11-2006 JJG 1010-2006 JJG (交通) 066-2006 JJG 181-2005 JJG 1004-2005 JJG (铁道) 132-2005 JJG(铁道)132-2005 JJG 738-2005 JJG (沪) 48-2005 |
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