DUI Metrology Dictionary

This glossary of words, phrases, and acronyms was designed post Bill C-46 to assist lawyers and judges in using terminology applicable to Criminal Code of Canada section 320 DUI litigation. Lawyers and judges should become familiar with all of these terms.

Accessory Equipment

Air blank (in the context of the Intoxilyzer)

Alcohol Test Committee

Alcohol standard

Alcohol standard log

Ambient threshold/ambient fail threshold (in the context of the Intoxilyzer)

Approved instrument (in the context of 320.31)

Blood alcohol concentration (BAC)

Calibration Interval

Calibration check (in the context of the Intoxilyzer)

Calibration curve (in the context of the Intoxilyzer)

Certificate of Calibration

Certificate of the Analyst

Certificate of the Qualified Technician

Conditions precedent/presumption/conclusive proof (in the context of 320.31)

Continuity (in the context of the actions of the qualified technicians)

Contradiction of the instrument's result (defence)

Contradiction of the truth (defence)

Control test (in the context of the Intoxilyzer)

Diagnostics fail (in the context of the Intoxilyzer)

Diagnostics test (in the context of the Intoxilyzer)

Differential Voltage Monitoring (DVM)

Disappearing alcohol

Dry gas/air gas

Esc Esc sequences (in the context of the Intoxilyzer)

Evidence tending to show (defence)

Evidence to the contrary (defence)

Floating zero (in the context of the Intoxilyzer)

Flow monitor (in the context of the Intoxilyzer)

Identity (in the context of the alcohol standard)

Independent service provider (in the context of the Intoxilyzer)

Infrared spectroscopy

Inspection by sampling

Instrument malfunction (defence)

Instrument of a kind, Instrument d'un type approuve

Interferent (in the context of the Intoxilyzer 8000C)

Interferent (in the context of the Intoxilyzer)

Internal standard (in the context of the Intoxilyzer)

Intoxilyzer 5000/5000C

Intoxilyzer 8000C

Maintenance/service log (in the context of the Intoxilyzer)

Maximum permissible error

Measurement Standard

Measurement Uncertainty

Measuring interval

Metrological Control : Legal metrological control

Metrological authority

Metrological supervision

Operating Procedures (SOP)

Operator error (in the context of the Intoxilyzer)

Precision (in the context of the Intoxilyzer)

Qualified technician

Qualitative (result)

Quantitative (result)

Radio frequency interference threshold (in the context of the Intoxilyzer)

Reference check (in the context of the Intoxilyzer)

Reliability (general principle)

Screening device

Screening device

Self/subject breath test (in the context of the Intoxilyzer)

Standard deviation

Traceability (in the context of measurement results)

Uncertainty growth

Uncertainty of measurement

Verification by sampling

Verification certificate

Verification of a measuring instrument

Verification: Initial verification

Verification: Verification After Repair

Verification: mandatory periodic verification

Verification: subsequent verification

Wet bath simulator (in the context of the Intoxilyzer)

Wet bath simulator digital thermometer

Wet bath simulator mercury thermometer

Wet bath simulator thermometer RS232 interface