breath analyzer

breath analyzer
an instrument consisting of a small bag or tube filled with chemically treated crystals, into which a sample of a motorist's breath is taken as a test for intoxication.

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▪ device
also called  Breathalyzer,  

      device used by police to determine the amount of alcohol (alcohol consumption) in the system of persons suspected of being intoxicated. In the analyzer, a precise amount of the suspect's exhaled breath is passed through a solution of potassium dichromate and sulfuric acid; (sulfuric acid) the change in the colour of the solution is proportional to the amount of alcohol in the air sample, which, in turn, is directly related to the alcohol content of the blood. Driving ability is seriously impaired when the alcohol concentration in the blood exceeds 80 milligrams per 100 millilitres.

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Universalium. 2010.

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Look at other dictionaries:

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  • breath analyzer — an instrument for determining the volume and composition of respired gases; some types are specifically designed for detecting alcohol in the breath …   Medical dictionary

  • breath analyzer — an instrument consisting of a small bag or tube filled with chemically treated crystals, into which a sample of a motorist s breath is taken as a test for intoxication …   Useful english dictionary

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  • breath test — test carried out by breath analyzer; breathalyzer test, test given by police to test a motorist s breath for alcohol and determine if he/she is intoxicated; diagnostic test wherein endogenous or exogenous substances are measured in samples of… …   English contemporary dictionary

  • breath test — a test by breath analyzer. [1965 70] * * * …   Universalium

  • Breathalyzer — Breath•a•lyz•er [[t]ˈbrɛθ əˌlaɪ zər[/t]] Trademark. cvb trm a breath analyzer …   From formal English to slang

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