National Metrological Verification Regulations of the People's Republic of China
Latest
JJG 1080-2013
Scope
This procedure applies to the initial calibration, subsequent calibration and in-service inspection of railway rolling stock wheel checkers (hereinafter referred to as the checkers).
JJG 1080-2013 history
2013JJG 1080-2013 Wheel-Checher for Railway Locomotives and Vehicles