Air blank definition
Air blank means, in evidential breath testing devices (EBTs) using gas chromatography technology, a reading of the device's internal standard. In all other EBTs, a reading of ambient air containing no alcohol.
Air blank means that portion of a breath alcohol test in which the instrument draws in outside air to purge the instrument of the previous sample in the sample chamber.
Air blank means a reading by an EBT of ambient air containing no alcohol.
More Definitions of Air blank
Air blank means a reading of 0.00 on an Evidential Breath Testing Devise of ambient air containing no alcohol.