This document describes results of the bilateral comparison of an oxygen in nitrogen gas mixture. The nominal amount-of-substance fraction was 0.2 mol/mol oxygen in nitrogen
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This is an author-created, un-copyedited version of an article accepted for publication/published in Metrologia. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/0026-1394/53/1A/08001