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.
Conventional mass
The conventional value of the result of weighing in air, based on a reference density of 8000 kg/m³ for the weight and 1.2 kg/m³ for air at 20 °C — the basis on which standard weights are specified per OIML R 111.
OIML R 111-1:2004 · Mass