Evaluation of the Dräger Alcotest 7110 MKIII Dual C Evidential Breath Alcohol Analyzer
Bibliographic record
Abstract
The Alcotest 7110 MKIII Dual C breath alcohol analyzer (MKIII Dual C) was evaluated according to the CSFS Alcohol Test Committee (ATC) standards (1998) for approved instruments. The MKIII Dual C uses two detectors: infrared (IR) at 9.5 μm and an electrochemical sensor (EC). Vapours from aqueous acetone solutions of 5, 10 and 50 milligrams in 100 millilitres of solution did not produce any readings other than zero on the instrument. Vapours from aqueous solutions of acetaldehyde, methanol, isopropanol, toluene, ethyl acetate and diethyl ether were blown into the MKIII Dual C to determine potential interference with the operation of the instrument. The instrument registered an “Interference” result with acetaldehyde, methanol, isopropanol, ethyl acetate and diethyl ether while toluene registered as a zero reading. The instrument's performance exceeded the ATC criteria for precision and accuracy when tested with vapours from aqueous alcohol solutions designed to simulate blood alcohol concentrations in the range of 50 to 350 milligrams of alcohol in 100 millilitres of blood. Human subject testing (n = 11) showed a correlation with two Approved Instruments (BAC Datamaster C and Intoxilyzer®5000C) that exceeded the ATC criteria.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.006 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".