breathalyser


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
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 ?
Dr Kevin Smith of Cardiff University's School of Social Sciences questioned the use of the breathalysers.
South Wales Police officers at Spar, Queen Street, where staff have been using hand-held breathalysers for over a month
Six out of 10 Britons travelling to France are not aware they have to carry two NF approved breathalysers at all times, according to the company.
HALF of motorists are unaware that the breathalysers they will soon need to carry in France must be certified to the French NF standard, according to the Institute of Advanced Motorists.
But if you are stopped you'll probably also be asked to blow into a police breathalyser anyway.
MILLIONS of motorists could risk losing their licences this summer if they are encouraged to drink-drive by the number of cheap breathalyser kits flooding the market.
99 - gave a "safe to drive" reading when a police breathalyser used at the same time showed the person was not.
Any youngsters who are suspected of drinking at the venues will be asked to carry out the breathalyser test.
US actor Bill Murray could face a drink-driving charge in Sweden after cruising through central Stockholm in a golf cart and refusing a breathalyser test, police in Sweden said.
TELECOMWORLDWIRE-28 December 2006-KDDI launches Breathalyser in a mobile phone(C)1994-2006 M2 COMMUNICATIONS LTD http://www.
ENTIRE weighing rooms will be subject to breathalyser tests from September