This standard magnifies the light wave interference pattern generated by the standard reflecting surface and the surface to be measured using a microscope.
KS B 0506-1975 history
2021KS B 0506-2021 Instruments for the Measurement of Surface Roughness by the Interferometric Method
2016KS B 0506-2016 Instruments for the Measurement of Surface Roughness by the Interferometric Method
1975KS B 0506-1975 Instruments for the Measurement of Surface Roughness by the Interferometric Method