C2-C5 components in mixtures of liquified hydrocarbons

This article presents the report on the supplementary comparison COOMET.QM-S4, "C2-C5 components in mixtures of liquified hydrocarbons". The objective of this comparison was assessment of the analytical capabilities of COOMET NMIs for measuring the composition of Liquid Petroleum Gas (LPG) mixtures when sampled in the liquid phase from Constant Pressure Cylinders (CPCs). KEY WORDS FOR SEARCH supplementary comparison, COOMET, Liquid Petroleum Gas, LPG, amount of substance fraction, constant pressure cylinders, ethane, propane, propene, i-butane, n-butane, 1-butene, i-pentane Main text To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/. The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).