CCL Discussion Group on gauge blocks (short & long) (CCL-DG1)
Chair
National Physical Laboratory
United Kingdom
Terms of reference
The terms of reference of DG1 are:
- to advise the CCL on matters relating to end standards, including gauge blocks, length bars and step gauges;
- to advise the CCL on matters related to interferometry with mise en pratique (laser) wavelengths, including the effects of the index of refraction of air;
- to produce a working document on principal uncertainty components in end standards metrology;
- to harmonize the terms and definitions related to end standards metrology.
Working Groups