Volume 35, Issue 3 (May 1990)

    Sampling of Multi-Unit Drug Exhibits

    (Received 1 April 1989; accepted 6 July 1989)

    CODEN: JFSOAD

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    Abstract

    The total number of drug exhibits submitted to forensic science laboratories continues to grow markedly, and increasingly, these exhibits are composed of ever larger numbers of units. These facts make the use of a sampling plan, which applies some limitations to the number of units sampled, highly desirable. A sampling plan assumes that the characteristics of the nonexamined units are the same as those in all of the examined units. This paper examines the validity of this assumption by the use of mathematical concepts. Various sampling plans, exhibit sizes, and sample sizes are used as examples. The effect of sample size on quantitative accuracy is also discussed.


    Author Information:

    Clark, AB
    Supervisory chemist and forensic chemist, Drug Enforcement Administration, Miami, FL

    Clark, CC
    Supervisory chemist and forensic chemist, Drug Enforcement Administration, Miami, FL


    Stock #: JFS12877J

    ISSN: 0022-1198

    DOI: 10.1520/JFS12877J

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    Author
    Title Sampling of Multi-Unit Drug Exhibits
    Symposium , 0000-00-00
    Committee E30