Article2013

Final report on CCQM-K93: Preparative comparison of ethanol in nitrogen

Andrew S. Brown · Martin J T Milton · Gergely M. Vargha · Michael L. Downey · Shenji Uehara · Cristiane Rodrigues Augusto +21 more

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Scientific Measurement and Uncertainty Evaluation Forensic Toxicology and Drug Analysis Calibration and Measurement Techniques

Abstract

This report presents the results of CCQM-K93, a key comparison between 13 National Measurement Institutes (NMIs), which tested the capability of the NMIs to prepare standard gas mixtures of ethanol at a nominal amount fraction of 120 µmol/mol in nitrogen. This composition is typical of the levels used to calibrate evidential breath analysers in many countries. Such standards fulfill the agreed requirements of the International Organization of Legal Metrology (OIML) for the calibration of evidential breath-alcohol analysers. Main text. To reach the main text of this paper, click on Final Report . Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/ . The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

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