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Brewer, P J; Downey, M L; Atkins, E; Brown, R J C; Brown, A S; Zalewska, E T; van der Veen, A M H; Smeulders, D E; McCallum, J B; Satumba, R T; Kim, Y D; Kang, N; Bae, H K; Woo, J C; Konopelko, L A; Popova, T A; Meshkov, A V; Efremova, O V; Kustikov, Y (2018) International comparison CCQM-K119 liquefied petroleum gas. Metrologia, 55 (1A). 08004 ISSN 0026-1394

Brewer, P J; Gieseking, B; Feracci, V F; Ward, M; van Wijk, J; van der Veen, A M H; Lima, A A; Augusto, C R; Oh, S H; Kim, B M; Lee, S; Konopelko, L A; Kustikov, Y; Shimosaka, T; Niederhauser, B; Guillevic, M; Pascale, C; Zhou, Z; Wang, D; Hu, S (2018) International comparison CCQM-K116: 10 μmol mol-1 water vapour in nitrogen. Metrologia, 55 (1A). 08018. ISSN 0026-1394