This document, which is by far the most widely-used, contains the verification results and certifies measurement compliance with the manufacturer and customer specifications. It can be issued with or without a points rating. In this way, the service provider registers an assessment of the instrument.
Calibration, with production of a Calibration Certificate (FDX 07-012) This involves rating the instrument with regard to a standard. It enables users to ascertain the accuracy of their measurements and correct them as necessary.