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CCQM-K23.a
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CCQM-K23.a
Information
Metrology area, branch   Amount of Substance, Gases
Description   Natural gas type I
Time of measurement   2004 - 2005
Status   Approved for equivalence, Results available
Reference(s)   Metrologia, 2007, 44, Tech. Suppl., 08001
Measurand   Amount-of-substance fraction of Natural gas type I:
Nitrogen (0.04 mol/mol),
Carbon dioxide (0.01 mol/mol),
Ethane (0.03 mol/mol),
Propane (0.01 mol/mol),
n-Butane (0.002 mol/mol),
i-Butane (0.002 mol/mol),
Methane (balance)
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)