National Metrological Technical Specifications of the People's Republic of China
Latest
JJF 1486-2014
Scope
This specification applies to the calibration of synchronous toothed belt type and drum type non-contact automotive speedometer calibration devices (hereinafter referred to as calibration devices).
JJF 1486-2014 history
2014JJF 1486-2014 Calibration Specification for Calibration Devices of Non-contact Automotive Speedmeters