Volume 30, Issue 4 (October 1985)

    An In Vitro Study of the Accuracy and Precision of Breathalyzer® Models 900, 900A, and 1000

    (Received 5 November 1984; accepted 28 January 1985)

    Published Online: October

    CODEN: JFSOAD

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    Abstract

    Ninety Breathalyzer® instruments (Model 1000) and twenty instruments (Models 900, 900A) were studied using a protocol described by the Department of Transportation's “Standard for Devices to Measure Breath Alcohol.” Although the mean of each of three concentrations tested (0.05, 0.10, and 0.15 g/210 L) compared favorably in both series, the standard deviation was consistently higher for the Model 1000 instruments. The Model 1000 instruments also produced a significant number of test results which exceeded the normally expected scientific deviation.


    Author Information:

    Yohman, DT
    Supervisor, Chemical Test for Alcohol Unit, Maryland State Police, Pikesville, MD

    Schaefer, JA
    Chemist, O'Neil M. Banks, Inc., Bel Air, MD

    Caplan, YH
    Toxicologist, Office of the Chief Medical Examiner, Baltimore, MD


    Stock #: JFS11046J

    ISSN: 0022-1198

    DOI: 10.1520/JFS11046J

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    Author
    Title An In Vitro Study of the Accuracy and Precision of Breathalyzer® Models 900, 900A, and 1000
    Symposium , 0000-00-00
    Committee E30