The calibrations concern the following parameters: Length, Flatness, Parallelism, Straightness, Roughness of Surfaces, Curvature of Surfaces, Convexity of Surfaces, Cylindricity, Concentricity, Eccentricity and Angle.
Calibrations are based on a variety of standard gauge blocks of Grade 00, optical flats, monochromatic light source device, Grade 01 rods, angles, rings and roughness plates, ensuring measurement traceability to NPL, HIM, etc.