JB/T 5221-1991
Contact handy digital tachometer (English Version)
- Standard No.
- JB/T 5221-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- Professional Standard - Machinery
- Status
- 2014-10
- Replace By
- JB/T 5221-2014
- Latest
- JB/T 5221-2014
- Scope
- This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging and storage of contact digital tachometers. This standard applies to tachometers used for short-term measurement of rotational speed.
JB/T 5221-1991 history
- 2014 JB/T 5221-2014 Digital hand-held contact tachometer
- 1991 JB/T 5221-1991 Contact handy digital tachometer
