| Metrology area, Sub-field | Chemistry and Biology, Gases |
| Description | Liquefied hydrocarbon mixtures in constant pressure (piston) cylinders |
| Time of measurements | 2011 - 2012 |
| Status | Approved |
| Final Reports of the comparisons | |
| Measurand | Amount-of-substance fraction of propane (2.0 cmol/mol), propene (2.0 cmol/mol), iso-butene (7.0 cmol/mol), n-butane (8.0 cmol/mol), iso-butane (70.8 cmol/mol), 1-butene (8.0 cmol/mol), 1,3-butadiene (0.8 cmol/mol), iso-pentane (0.8 cmol/mol), and n-pentane (0.6 cmol/mol) in liquefied hydrocarbon mixtures |
| Transfer device | Constant pressure piston-cylinders |
| Comparison type | Supplementary Comparison |
| Consultative Committee | CCQM (Consultative Committee for Amount of Substance) |
| Conducted by | EURAMET (European Association of National Metrology Institutes) |
| RMO Internal Identifier | EURAMET Project No 1195 |
| Comments | |
| Pilot institute |
NPL
National Physical Laboratory United Kingdom |
| Contact person | Lucy Culleton |
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