National Metrological Verification Regulations of the People's Republic of China
Latest
JJG 1054-2009
Scope
This procedure applies to the initial calibration, subsequent calibration and in-use inspection of digital clamp-type grounding resistance meters (hereinafter referred to as clamp-type resistance meters).
JJG 1054-2009 Referenced Document
GB 4793.1-2007 Safety requirements for electrical equipment for measurement,control,and laboratory use.Part 1:General requirements