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CCQM-K1.e
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CCQM-K1.e
Information
Metrology area, branch   Amount of Substance, Gases
Description   Natural gas type I
Time of measurement   1996 - 1997
Status   Approved for equivalence, Results available
Reference(s)   Metrologia, 2000, 37, 35-49
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),
Methane (0.908 mol/mol)
Transfer device(s)   Calibrated gas cylinders measured by gravimetry
Comparison type   Key comparison
Consultative Committee  CCQM (Consultative Committee for Amount of Substance)
Conducted by   CCQM (Consultative Committee for Amount of Substance)
Comments   CCQM-K1.e is one of the seven sub-comparisons CCQM-K1.a, .b, .c, .d, .e, .f, and .g of the key comparison CCQM-K1 on gas mixtures.