International Comparison EURO.QM-S5 / 1166: Carbon Dioxide Mixtures in Nitrogen

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International Comparison EURO.QM-S5 / 1166: Carbon Dioxide Mixtures in Nitrogen
Title:
International Comparison EURO.QM-S5 / 1166: Carbon Dioxide Mixtures in Nitrogen
Journal Title:
Metrologia
Keywords:
Publication Date:
07 May 2021
Citation:
Florbela A Dias et al 2013 Metrologia 50 08017
Abstract:
This supplementary comparison is designed to test the capabilities of the participants to measure and certify carbon dioxide in nitrogen, and to provide supporting evidence for the CMCs of institutes for carbon dioxide. Indeed this comparison aims to demonstrate the capabilities of IPQ in the production of primary gas mixtures of carbon dioxide in nitrogen and for the participant laboratories to demonstrate their capabilities on certifying primary gas mixtures of percent levels of carbon dioxide in nitrogen. Moreover, a number of NMIs had already participated in the key comparison CCQM-K52, but in a lower range. This EURAMET comparison offers an opportunity to the laboratories to submit CMC in a higher range. In this comparison the laboratories analysed the gas mixtures that are gravimetrically produced and analyzed by IPQ. Each cylinder had its own reference value calculated from the gravimetric preparation. The pressure in the cylinders was approximately 10 MPa; aluminum cylinders of 5 dm3 nominal volume were used. This comparison provides evidence in support of CMCs for carbon dioxide within the range of 1.0 × 10−2 mol/mol to 20.0 × 10−2 mol/mol in a nitrogen/air balance.
License type:
PublisherCopyrights
Funding Info:
Description:
This is an author-created, un-copyedited version of an article accepted for publication/published in [insert name of journal]. 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/10.1088/0026-1394/50/1A/08017
ISSN:
0026-1394
1681-7575
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