QB/T 1042-1991
display world clock (English Version)
- Standard No.
- QB/T 1042-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- Professional Standard - Light Industry
- Status
- 2014-11
- Replace By
- QB/T 1042-2014
- Latest
- QB/T 1042-2014
- Scope
- This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of display world clocks. This standard is applicable to devices that use the frequency of a quartz oscillator as the standard and use a display to indicate, in addition to the standard time of the local area, the corresponding time devices of other time zones or regions (cities) in the world (hereinafter referred to as "world clocks"). ).
QB/T 1042-1991 history
- 2014 QB/T 1042-2014 Digital world time clocks
- 1991 QB/T 1042-1991 display world clock
