Adriaan M H van der Veen et al 2007 Metrologia 44 08001 doi:10.1088/0026-1394/44/1A/08001
Adriaan M H van der Veen1, Paul R Ziel1, Ed W B de Leer1, Damian Smeulders2, Laurie Besley2, Valnei Smarçao da Cunha3, Zei Zhou4, Han Qiao4, Hans-Joachim Heine5, Jan Tichy6, Teresa Lopez Esteban7, Tatiana Mace8, Zsófia Nagyné Szilágyi9, Jin-Chun Woo10, Hyun-Kil Bae10, Alejandro Perez Castorena11, Melina Perez Urquiza11, Francisco Rangel Murillo11, Victor M Serrano Caballero11, Carlos E Carbajal Alarcón11, Carlos Ramírez Nambo11, Manuel de Jesús Avila Salas11, Agata Rakowska12, Florbela Dias13, Leonid A Konopelko14, Tatjana A Popova14, V V Pankratov14, M A Kovrizhnih14, A V Meshkov14, O V Efremova14, Yury A Kustikov14, Stanislav Musil15, Frantisek Chromek15, Miroslava Valkova15 and Martin J T Milton16
Show affiliationsAt the highest metrological level, natural gas standards are commonly prepared gravimetrically as PSMs (primary standard mixtures). This international key comparison is a repeat of CCQM-K1e-g. The mixtures concerned contain nitrogen, carbon dioxide and the alkanes up to butane. The only difference with CCQM-K1e-g is the addition of iso-butane to the list. The results usually agree within 1% (or better) with the key comparison reference value. For ethane, nitrogen and carbon dioxide, the agreement is within 0.5% (or better), and for methane within 0.1% (or better) of the KCRV.
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 (MRA).
Issue 1A ( 1 January 2007)
Adriaan M H van der Veen et al 2007 Metrologia 44 08001
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