This International Standard establishes a reference system incorporating all calibrated motions of rotation and displacement on the microscope and its accessories so that the measuring procedures are uniform. Particular attention is given to the polarization parameters and measuring accessories such as rotary microscope stages, polarizing devices, and compensators.
BS 7012-12:1997 history
1997BS 7012-12:1997 Light microscopes. Reference system of polarized light microscopy