@article{ref1,
title="Evaluation of the Analytical Performance of a Fuel Cell Breath Alcohol Testing Instrument: A Seven-Year Comprehensive Study",
journal="Journal of forensic sciences",
year="2012",
author="Leonard, Robert J.",
volume="57",
number="6",
pages="1614-1620",
abstract="Between 2003 and 2009, 54,255 breath test sequences were performed on 129 AlcoSensor IV-XL evidential instruments in Orange County, CA. The overall mean breath alcohol concentration and standard deviation from these tests was 0.141 ± 0.051 g/210 L. Of these test sequences, 38,580 successfully resulted in two valid breath alcohol results, with 97.5% of these results agreeing within ±0.020 g/210 L of each other and 86.3% within ±0.010 g/210 L. The mean absolute difference between duplicate tests was 0.006 g/210 L with a median of 0.004 g/210 L. Of the 2.5% of duplicate test results that did not agree within ±0.020 g/210 L, 95% of these had a breath alcohol concentration of 0.10 g/210 L or greater and 77% had an alcohol concentration of 0.15 g/210 L or greater. The data indicate that the AlcoSensor IV-XL can measure a breath sample for alcohol concentration with adequate precision even amid the effects of biological variations.<p /> <p>Language: en</p>",
language="en",
issn="0022-1198",
doi="10.1111/j.1556-4029.2012.02146.x",
url="http://dx.doi.org/10.1111/j.1556-4029.2012.02146.x"
}