Evidential breath-alcohol analysis instrument

This guide describes the technical requirements for type approval for new breath-alcohol testing instruments for police use in Great Britain.


Evidential breath-alcohol analysis instrument

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This is reference material for manufacturers wishing to develop new equipment. The document contains details of the construction of mobile evidential breath-test instruments, their operations and the methods for testing prior to submission to the secretary of state for consideration.

These instruments detect and measure ethanol in the expired air from the alveoli (air sacs in the lungs).

Published 9 October 2014