National Metrological Verification Regulations of the People's Republic of China
Latest
JJG 1074-2012
Scope
This procedure is applicable to the initial verification and subsequent verification of the speed measurement performance of mobile laser speedometers for motor vehicles (including handheld ones) and speed measurement units of automatic motor vehicle speeding monitoring systems that adopt the principle of pulse laser speed measurement (hereinafter collectively referred to as "laser speedometers"). and checked in use.
JJG 1074-2012 Referenced Document
GB 7247.1-2001 Safety of laser products Part 1: Equipment classification,requirements and user's guide