On two piston-cylinder pressure gauges with 35,3 mm diameter and two sets of fiber connector standards with 2,5 mm diameter, calibrations of internal and external dimensions with uncertainties aimed at 0,1 µm or better have to be made. A total of 16 diameters on the pressure gauges and 8 diameters on the connector standards will be measured. Form measurements will be provided by the proposer at least and the results may be taken into account for diameter uncertainty estimation by other participants.
Planned duration: 18 months.
The number of partners should not be extended, to be able to follow the time schedule of a CCM pressure comparison, the piston-cylinder units are used for.