International comparison CCQM-K117 ammonia
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DOI: 10.1088/0026-1394/58/1a/08017
Abstract: At the highest metrological level, ammonia gas standards are commonly prepared gravimetrically as Primary Standard Mixtures or using a dynamic standard. This international key comparison addressed the measurement of the amount fraction ammonia in nitrogen,… read more here.
Keywords: comparison; comparison ccqm; international comparison; key comparison ... See more keywords
CCQM-P206, nitrous oxide (N2O) in air, ambient level, pilot study run in parallel with CCQM-K68.2019
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DOI: 10.1088/0026-1394/60/1a/08013
Abstract: The Pilot Study CCQM-P206 was conducted in parallel with the Key Comparison CCQM-K68.2019, which was aimed at evaluating the level of comparability of laboratories' capabilities for nitrous oxide in air primary reference mixtures at ambient… read more here.
Keywords: ccqm k68; ccqm; pilot study; key comparison ... See more keywords