The NPL, the UK's National Metrology Institute, is a world-leading centre of excellence in developing and applying the most accurate measurement standards. NMIs throughout the world mutually recognise international measurement standards and calibration certificates, including EUROMET, APMP (Asia Pacific) and SIM (Canada & USA). Each NPL-certified micrometer is permanently marked with an individual reference number, and is supplied in a baize-lined wooden box.
Stage micrometers for use with transmitted light are available with different line lengths and sub-divisions as detailed below:
AGL4201 Stage micrometer, 10mm scale, 0.1mm sub-divisions, line width 5µm, accuracy <2µm overall
AGL4204 Stage micrometer, 2mm scale, 0.01mm sub-divisions, line width 2.5µm, accuracy <1.5µm overall
AGL4078 Stage micrometer, 1mm scale, 0.01mm sub-divisions, line width 2µm, accuracy <1µm overall
AGL4202 Stage micrometer, 0.1mm scale, 0.002mm sub-divisions, line width 1µm, accuracy <1µm overall
AGL4203 Stage micrometer, 0.1″ scale, 0.001″sub-divisions, line width 2µm, accuracy <0.0001″ overall