Milton, M.
, Brookes, C.
, Marschal, A.
, Guenther, F.
, Rhoderick, G.
, Leer, D.
, Zhen, L.
, Takahashi, C.
, Deak, E.
and Kustikov, Y.
(2021),
Final Report of Key Comparison CCQM-K4 (Ethanol in Air), Metrologia
(Accessed October 26, 2025)
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Final Report of Key Comparison CCQM-K4 (Ethanol in Air)
Published
Author(s)
M J. Milton, C Brookes, A Marschal, , , D E. Leer, L W. Zhen, C Takahashi, E Deak, Y A. Kustikov
Abstract
This key comparison involved primary standards of ethanol in air maintained at eight laboratories. The nominal amount fraction of the standards used for the comparison was 120 mmol/mol which is typical of the levels used to calibrate evidential breath analysers in many countries. Such standards fulfil the agreed OIML requirements for the calibration of evidential breath-alcohol analysers and are able to provide a more accurate calibration at field level than ethanol/water solution-based simulators which have a high sensitivity to variations in the temperature of the solution.Citation
Metrologia
Pub Type
Journals
Keywords
CCQM, ethanol, gas standard, key comparison
Citation
Issues
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Created October 12, 2021