Harding et al (1990).  Field Performance of the Intoxilyzer 5000 A Comparison of Blood and Breath Alcohol Results in Wisconsin Drivers.  Journal of Forensic Sciences.  35:5, 1022-1028.

Intoxilyzer@ 5000 and blood-alcohol results from drivers arrested for operating a motor vehicle while intoxicated and for related offenses were compared during a two-year period. Three hundred and ninety-five pairs of results were studied. The breath- and blood-alcohol specimens in this study were collected within 1 h of each other. The mean blood-alcohol concentration obtained was 0.180 g/dL, with a range from zero to 0.33B g/dL. By comparison, the mean Intoxilyzer 5000 result was 0.16 g/210 L with a range from zero to 0.32 g/210 L. Compared with the blood-alcohol result, Intoxilyzer 5000 results were lower by more than 0.01 g/210 L 67% of the time, within 0.01 g/210 L 31 % of the time, and higher by more than 0.01 g/210 L 20i- of the time.

Keywords: toxicology, intoxication, breath-alcohol testing device, Intoxilyzer