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Gas reference materials

Gas standards for olfactometry

Gas mixtures for testing

Gas mixtures of compounds such as 1-butanol are regularly used for olfactometry testing applications. Examples of NPL's olfactometry gas standards are shown below. Other mixtures may be available on request.

Component Matrix gas Amount fraction range from Amount fraction range to
1-butanol Nitrogen or air 20 μmol/mol 100 μmol/mol
1-pentene Nitrogen or air 1 μmol/mol 80 μmol/mol

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