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

Accuracy class

A class of instruments or systems that meet stated metrological requirements intended to keep errors or instrumental uncertainties within specified limits under specified conditions — OIML weight classes E1 through M3 are the canonical example.

VIM (JCGM 200:2012) 4.25 · Instruments