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    ASTM E1893 - 15(2021)

    Standard Guide for Selection and Use of Portable Radiological Survey Instruments for Performing In Situ Radiological Assessments to Support Unrestricted Release from Further Regulatory Controls

    Active Standard ASTM E1893 | Developed by Subcommittee: E10.03

    Book of Standards Volume: 12.02


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    Significance and Use

    4.1 The purpose of this standard is to provide the user information and guidance for selecting and using instrumentation that will provide measurement results that can be compared to criteria for unrestricted use.

    4.2 Use of this standard will provide greater assurance that the measurements obtained will be technically and administratively sufficient for making decisions regarding completion of decontamination and/or demolition/removal activities.

    4.3 Use of this standard will provide greater assurance that the measurements obtained will be technically and administratively sufficient to meet all applicable regulatory requirements for unrestricted release of a component for recycle or reuse, or for unrestricted release of a remaining surface or area.

    1. Scope

    1.1 This standard provides recommendations on the selection and use of portable instrumentation that is responsive to levels of radiation that are close to natural background. These instruments are employed to detect the presence of residual radioactivity that is at, or below, the criteria for release from further regulatory control of a component to be salvaged or reused, or a surface remaining at the conclusion of decontamination and/or decommissioning.

    1.2 The choice of these instruments, their operating characteristics and the protocols by which they are calibrated and used will provide adequate assurance that the measurements of the residual radioactivity meet the requirements established for release from further regulatory control.

    1.3 This standard is applicable to the in situ measurement of radioactive emissions that include:

    1.3.1 alpha

    1.3.2 beta (electrons)

    1.3.3 gamma

    1.3.4 characteristic x-rays

    1.3.5 The measurement of neutron emissions is not included as part of this standard.

    1.4 This standard dose not address instrumentation used to assess residual radioactivity levels contained in air samples, surface contamination smears, bulk material removals, or half/whole body personnel monitors.

    1.5 This standard does not address records retention requirements for calibration, maintenance, etc. as these topics are considered in several of the referenced documents.

    1.6 Non-SI units are used and appropriate for this guide as they are industry standard. Mathematical equivalents may be provided in parentheses.

    1.7 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

    C998 Practice for Sampling Surface Soil for Radionuclides

    C999 Practice for Soil Sample Preparation for the Determination of Radionuclides

    C1000 Test Method for Radiochemical Determination of Uranium Isotopes in Soil by Alpha Spectrometry

    C1133 Test Method for Nondestructive Assay of Special Nuclear Material in Low-Density Scrap and Waste by Segmented Passive Gamma-Ray Scanning

    C1215 Guide for Preparing and Interpreting Precision and Bias Statements in Test Method Standards Used in the Nuclear Industry

    E170 Terminology Relating to Radiation Measurements and Dosimetry

    E181 Test Methods for Detector Calibration and Analysis of Radionuclides


    ICS Code

    ICS Number Code 17.240 (Radiation measurements)

    UNSPSC Code

    UNSPSC Code 20121921(Radiation survey meter)


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

    DOI: 10.1520/E1893-15R21

    Citation Format

    ASTM E1893-15(2021), Standard Guide for Selection and Use of Portable Radiological Survey Instruments for Performing In Situ Radiological Assessments to Support Unrestricted Release from Further Regulatory Controls, ASTM International, West Conshohocken, PA, 2021, www.astm.org

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