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Continuity of the Alcohol Standard
Tip 34: The use of an alcohol standard during evidentiary breath testing in Canada was not mentioned in the Criminal Code as a condition...
Stephen Biss
May 28, 20224 min read


Know the Simulator Probes
Tip 24: Knowledge of #duisimulator probes assists understanding of function & malfunction of thermistor, heater, and thermometer(s). Many...
Stephen Biss
Apr 30, 20223 min read


Verification of Digital Thermometer
Although not stated in the 8000C Training Aid, CFS scientists seem to be in agreement, that it is recommended that a NIST mercury...
Stephen Biss
Dec 3, 20212 min read


Simulator is necessary "Accessory Equipment" that requires inspection and re-calibration
A wet-bath simulator is "accessory equipment" according to the ATC Best Practices document. A wet-bath simulator requires annual...
Stephen Biss
Feb 14, 20203 min read


Heater Response Time on Guth 2100
Purpose: To further challenge the Crown's suggestion that the anomalous low cal. checks that occurred in this breath truck were not...
Stephen Biss
Feb 9, 20187 min read
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