This standard specifies the verification items, conditions, methods and verification of inch (including inch and metric) and metric depth vernier calipers with an inch reading value of 0.001in, a metric reading value of 0.02 and 0.05mm, and a maximum measuring range of 20in and 500mm. Processing of results. This standard is applicable to the verification of export inch and metric depth vernier calipers.
HB 6723.3-1993 history
1993HB 6723.3-1993 Method for verifying depth vernier caliper