National Metrological Verification Regulations of the People's Republic of China
Latest
JJG 885-2014
Scope
This procedure is applicable to the initial calibration, subsequent calibration and in-use inspection of rolling bearing width measuring instruments with a graduation value not greater than 0.001 mm.
JJG 885-2014 history
2014JJG 885-2014 Instruments for Measuring Rolling Bearing Width
1995JJG 885-1995 Verification Regulation of Instruments for Measuring Rolling Bearing Width