This standard BS 907:2008 Specification for dial gauges for linear measurement is classified in these ICS categories:
17.040.30 Measuring instruments
This British Standard specifies requirements for dial gauges with the plunger movement parallel to the plane of the dial.
The standard is applicable to gauges having dial diameters from 47.6 mm or 17⁄8 in to 63.5 mm or 21⁄2 in, as measured from the outside of the scale marks, and scale divisions of 0.01 mm, 0.001 in (sometimes sub-divided into half divisions of 0.000 5 in, in which case they are commonly designated “0.000 5 in gauges”) or 0.000 1 in.
NOTE 1 Attention is drawn to the fact that the metric dimensions are not necessarily direct conversions of the imperial dimensions.
NOTE 2 Recommended dimensions for dial gauges are given in Annex A (Figure A.1) and notes on methods of testing and on the care and use of dial gauges are given in Annex B and Annex C respectively.