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CCQM-K84
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CCQM-K84
Information
Metrology area, branch   Amount of Substance, Gases
Description   Comparison of standard gas mixtures in high pressure gas cylinders with a matrix of air
Time of measurement   2011
Status   Approved for equivalence, Results available
Reference(s)   Metrologia, 2017, 54, Tech. Suppl., 08016
Measurand   Amount-of-substance fraction of carbon monoxide in air at the atmospheric background level (350 nmol/mol).
Transfer device(s)   Gas cylinders
Comparison type   Key comparison
Consultative Committee  CCQM (Consultative Committee for Amount of Substance)
Conducted by   CCQM (Consultative Committee for Amount of Substance)