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

National measurement standard

A standard recognized by national authority to serve, in a state or economy, as the basis for assigning values to other standards of the same kind.

VIM (JCGM 200:2012) 5.3 · Standards & Units

Numerical quantity value

The number in a quantity value — the 5.34 in 5.34 m: the ratio of the quantity to its unit.

VIM (JCGM 200:2012) 1.20 · Standards & Units

Numerical value equation

A relation between numerical values that holds only for stated units — the form most spreadsheet formulas quietly are, and the reason unit discipline matters.

VIM (JCGM 200:2012) 1.25 · Standards & Units