ASTM WK44266

    New Practice for Laboratory Management of Precision and Bias of Test Methods

    (What is a Work Item?)

    Developed by Subcommittee: E11.20 | Committee E11 | Contact Staff Manager


    1. Scope

    This standard will provide methodology for estimating, monitoring, and reacting to changes in test method precision and bias within a laboratory by means of a control sample program. Other topics will include test method capability, and estimation of contributing factors for test method quality improvement.

    The concept of laboratory precision, or long term within-laboratory intermediate precision, is not fully developed in E11 standards. The concept of intermediate precision covers a multitude of precision estimation scenarios, but appears to be limited to short term precision estimation with varying combinations of causative factors, such as analysts, instruments, equipment, reagents, time, and so forth, either within a single laboratory or across multiple laboratories. The standard will provide statistical techniques that should be useful to other ASTM committees, regulatory bodies, and the general testing community.


    laboratory precision, control sample program, test method capability

    The title and scope are in draft form and are under development within this ASTM Committee.

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    Work Item Status

    Date Initiated:

    Technical Contact:
    Polona Carson

    Draft Under Development