IUPAC > Gold Book > alphabetical index > R > reference procedure in analysis of trace air constituents


reference procedure

in analysis of trace air constituents
Agreed method for determining one or more air quality characteristics where it is not practical to produce a reference material; the result obtained is defined as the measure of the air quality characteristic. For example, a gas such as NO2 may be somewhat unstable when stored in a tank at low mixing ratios, so that the use of a more stable NO standard mixture in N2 may be oxidized to NO2 by O3 in a specified manner referred to as the NO2 reference procedure.
PAC, 1990, 62, 2167 (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2210
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IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
Last update: 2014-02-24; version: 2.3.3.
DOI of this term: doi:10.1351/goldbook.R05232.
Original PDF version: http://www.iupac.org/goldbook/R05232.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
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