Document Type and Number:
Japanese Patent JPS4974994
Kind Code:
A
Abstract:
A breath sample, having a fixed known alcohol content, is useful for calibrating or checking the performance of an alcoholic breath analyzer. Such a standard alcoholic breath sample may be simulated by blowing non-alccoholic breath through an elongated enclosure maintained at a given temperature and containing alcohol vapor continuously generated from an abosrbent material impregnated with an alcohol-water solution. The breath produced at the enclosure's outlet will constitute a simulated breath sample having a known alcohol concentration.
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Application Number:
JP10857573A
Publication Date:
July 19, 1974
Filing Date:
September 28, 1973
Export Citation:
International Classes:
G01N1/02; G01N33/00; G01N33/497; (IPC1-7): G01N1/22