QB/T 1040-1991
Rotor Magnets for Analog Quartz Clocks (English Version)
- Standard No.
- QB/T 1040-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- Professional Standard - Light Industry
- Status
- 2012-07
- Replace By
- QB/T 1040-2011
- Latest
- QB/T 1040-2011
- Scope
- This standard specifies the size series, technical requirements, test methods, inspection rules and markings, packaging, transportation, storage and other requirements for analogue quartz clock rotor magnets (hereinafter referred to as "magnets"). This standard applies to a pair of poles radially magnetized rotor magnets for single-phase permanent magnet stepper motors of pointer-type quartz clocks.
QB/T 1040-1991 history
- 2011 QB/T 1040-2011 Rotor magnet-steel for analogue quartz clocks
- 1991 QB/T 1040-1991 Rotor Magnets for Analog Quartz Clocks
