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Photo: referendum in Ukraine
in December 1991.
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It was around 24 years ago in Amsterdam. To be precise the 2nd of December, 1991. At the same time that Mikhail Gorbachev was thinking about resigning as President of the Union of Soviet Socialist Republics, a group of enthusiasts met to discuss about the first standard about odour concentration measurement. Today, 33 countries of Europe are using this standard to measure odour concentration. But that was not easy a few years back.
To start with this history we should go back to 1984.
Last year, a total of 40 laboratories from 14 different countries participated in an interlaboratory test to check proficiency according to European standard EN 13725/2003 organized by the company Odournet.Test criteria used in this comparison to assess the results were the precision under repeatability conditions r and accuracy A for 1-butanol of the laboratory according to EN 13725. There were 38 participants from Europe and 2 from Chile.