Knowledge

Metrology Dictionary

The complete VIM vocabulary — all numbered concepts of JCGM 200:2012 as faithful paraphrases with clause citations — plus clearly labeled practice terms from the GUM, ILAC, ISO and NIST guidance.

All A B C D E G I K L M N O P Q R S T U V W Z

All sources 172 VIM vocabulary 144 Practice & guidance 28

All disciplines 172 Calibration 14 Dimensional 3 General 19 Instruments 39 Mass 2 Pressure 1 Quality & Accreditation 11 Standards & Units 46 Statistics 13 Temperature 2 Uncertainty 22

Primary measurement standard

A standard established using a primary reference measurement procedure, or created as an artifact chosen by convention — not calibrated against another standard for the same quantity.

VIM (JCGM 200:2012) 5.4 · Standards & Units

Primary reference measurement procedure

A reference procedure used to obtain a result without relation to a standard for a quantity of the same kind — the route by which primary standards are realized.

VIM (JCGM 200:2012) 2.8 · General