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    ASTM E178 - 21

    Standard Practice for Dealing With Outlying Observations

    Active Standard ASTM E178 | Developed by Subcommittee: E11.10

    Book of Standards Volume: 14.05


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    Abstract

    This practice covers outlying observations in samples and how to test the statistical significance of outliers. The procedures in this practice were developed primarily to apply to the simplest kind of experimental data, that is, replicate measurements of some property of a given material or observations in a supposedly random sample.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This practice covers outlying observations in samples and how to test the statistical significance of outliers.

    1.2 The system of units for this standard is not specified. Dimensional quantities in the standard are presented only as illustrations of calculation methods. The examples are not binding on products or test methods treated.

    1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    E456 Terminology Relating to Quality and Statistics

    E2586 Practice for Calculating and Using Basic Statistics


    ICS Code

    ICS Number Code 03.120.30 (Application of statistical methods)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/E0178-21

    Citation Format

    ASTM E178-21, Standard Practice for Dealing With Outlying Observations, ASTM International, West Conshohocken, PA, 2021, www.astm.org

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