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    ASTM B63 - 07(2018)

    Standard Test Method for Resistivity of Metallically Conducting Resistance and Contact Materials

    Active Standard ASTM B63 | Developed by Subcommittee: B02.10

    Book of Standards Volume: 02.04

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    Significance and Use

    4.1 In the case of materials for resistors and heating elements, a knowledge of resistivity is important in determining whether wire or strip of a specified area of cross section and length will have a required resistance. It serves as one basis for the selection of materials for specific applications and its measurement is a necessary acceptance test for resistance materials.

    4.2 In the case of materials for electrical contacts, the measurement of resistivity can serve as a test for uniformity of materials of nominally the same composition and structure.

    1. Scope

    1.1 This test method covers the determination, to a precision of 2 %, of the electrical resistivity of materials used in resistors, heating elements, and electrical contacts, as well as products of powder metallurgy processes which are used for other purposes.

    Note 1: For determining the resistivity of electrical conductors, see Test Method B193.

    1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, 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

    B193 Test Method for Resistivity of Electrical Conductor Materials

    ICS Code

    ICS Number Code 77.040.99 (Other methods of testing metals)

    UNSPSC Code

    UNSPSC Code 39121522(Electrical contacts)

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

    DOI: 10.1520/B0063-07R18

    Citation Format

    ASTM B63-07(2018), Standard Test Method for Resistivity of Metallically Conducting Resistance and Contact Materials, ASTM International, West Conshohocken, PA, 2018, www.astm.org

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