The glass discs are mounted in stainless steel slides with engraved serial numbers. Each slide is supplied in a polished wooden storage case to distinguish it as a traceable standard of high value. We can arrange for the calibration of its scales and grids to be carried out by the most appropriate laboratory to suit the customers requirements – the choice of laboratory is normally dependent on the nature of the calibration and the accuracy required.
A Certificate of Comparison from Pyser-SGI compares the scale to a NPL calibrated in-house standards. A statement is provided on the accuracy of the item with respect to these standards.