Stage Micrometers
These stage micrometers differ from the standard stage micrometers because
they are available with a certificate giving precise details about their
accuracy. These calibrated standards provide traceability for the precise
calibration and confirmation of accuracy of optical measuring instruments
which is necessary under ISO provisions.
Calibrations are available from the following.
(Please refer to the ordering information and catalog numbers
below).
A. Calibration by NPL
The National Physical Laboratory carries out measurements at selected points
on the scales and grids
and issues a certficate of calibration.
B. Calibration by a UKAS Accredited Laboratory
A UKAS accredited laboratory carries out measurements at selected points on
the scales and grids and issues a calibration certificate
C. Measurement by Graticules
For applications which do not require the accuracy provided by calibrations
carried out by NPL or a UKAS accredited laboratory. Graticules can provide a
Certificate of Comparison. The scale or grid is compared with NPL calibrated
in-house standards and a statement is provided on the accuracy of the item
with respect to these standards
| 
