This standard specifies the technical requirements, test methods, inspection rules, marking and packaging of measuring tools and parts for pneumatic measuring instruments. This standard applies to non-contact pneumatic measuring heads, pneumatic measuring tools, and matching calibration gauges that measure the inner (outer) diameter after being connected to a buoy-type pneumatic measuring instrument indicator.
HB 6816-1993 history
1994HB 6816-1993 Measuring tools for pneumatic measuring instruments and technical conditions of their parts