International comparison CCQM K23b: Natural gas type II

At 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 f...

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Bibliographic Details
Published in:Metrologia 2010-01, p.1
Main Authors: van der Veen, Adriaan M H, Chander, Hima, Ziel, Paul R, de Leer, Ed W B, Smeulders, Damian, Besley, Laurie, da Cunha, Valnei Smarçao, Zhou, Zei, Qiao, Han, Heine, Hans-Joachim, Tichy, Jan, Esteban, Teresa Lopez, Kato, K, Szilágyi, Zsófia Nagyné, Kim, Jin Seog, Woo, Jin-Chun, Bae, Hyun-Gil, Castorena, Alejandro Pérez, Murillo, Francisco Rangel, Caballero, Victor M Serrano, Nambo, Carlos Ramírez, Salas, Manuel de Jesús Avila, Rakowska, Agata, Dias, Florbela, Konopelko, Leonid A, Popova, Tatjana A, Pankratov, V V, Kovrizhnih, M A, Kuzmina, T A, Efremova, O V, Kustikov, Yury A, Musil, Stanislav, Milton, Martin J T
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemical compounds
Measurement techniques
Natural gas
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Summary:At 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 from CCQM-K1e-g is the addition of iso-butane to the list. The agreement of the results in this key comparison is very good. For all parameters, with a few exceptions, the results agree within 0.5% (or better) with the key comparison reference value. For methane, the results are generally within 0.1% (or better) of the KCRV. [PUBLICATION ABSTRACT]
ISSN:0026-1394
1681-7575