breathalyser


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Related to breathalyser: breathalyzer, Preliminary Breath Test

breathalyser

A device used to detect alcohol on a suspected drunk driver’s breath.

Principle
The air in the alveoli is in intimate contact with the capillary blood, meaning that the blood alcohol concentration can be closely estimated from concentration of alcohol in the breath. The breath to blood ratio is about 1:2300, with the caveat that breath alcohol concentration rises faster and falls earlier than in venous blood.
References in periodicals archive ?
"She behaved violently and refused to be handcuffed when she learnt that she had to be handcuffed and taken for a breathalyser test.
An assistant manager at Spar Express, who did not want to be named, said previously that the store often saw drunk people come in to buy alcohol and had been using breathalysers for several months.
Dr Kevin Smith, of Cardiff University's School of Social Sciences, questioned the use of the breathalysers.
| Right: Drink drive campaigner Princess Anne blows into a breathalyser machine, and, left, then Transport Minister Barbara Castle
AA president Edmund King said: "The breathalyser sits alongside compulsory seat belts and the introduction of EURONCAP crash testing as the three biggest road safety life-saving measures introduced in the last half century.
To start the Promille Grillen, the user must blow into the breathalyser. The device will only start if a low level of alcohol is detected.
"Management at the bar have also implemented a breathalyser system which allows door staff to turn away any potential customer who is suspected of being too intoxicated to enter.
Joanne Ferry tries the breathalyser at the John Duck Pub on Claypath, Durham City
Stores including Boots, Halfords and even Poundshop began stocking breathalyser kits, which range in price from PS1 to PS59.99.
The anti-alcohol rules will be enforced with the help of a breathalyser test.
The tests included the pre-flight breath analysis of pilots and cabin crew, with the breathalyser equipment being non-functional, they said.
Whilst the officer was trying to make the breathalyser ready for action, I enquired as to the consequences of failing the test; the reply was: "You will be arrested, but since you say you haven't had much alcohol on the Saturday night, you are sure to pass the test; another driver said he had imbibed three pints, and he passed easily".