BMC to CMC - A Cchange in terminology from Best Measurment Capability to Calibration and Measurement Capability

 The measurement capabilities provided by accredited calibration laboratories have in the past been described by the Best Measurement Capability (BMC) which expresses the lowest uncertainty of measurement that could be achieved during a calibration. This terminology has been widespread in accreditation around the world.

The National Metrology Institutes (NMIs) have had a similar description of the services provided to their clients. Within the NMI community the term has been Calibration and Measurement Capability (CMC).

In pursuit of harmony and co-operation between the communities, ILAC has decided to make a change in the terminology used and in the future the BMC will be named as the CMC.

References to Best Measurement Capability in scopes of accreditation for calibration facilities will be amended to read Calibration and Measurement Capability. This change is considered to be a terminology change only, as BMC and CMC have been agreed to be equivalent. There are no technical implications regarding schedules or uncertainty budgets.

The EA Accreditation Bodies will implement this change in terminology by 31 December 2010.

Publish Date:23.07.2012