ASTM B692-90(2012)

    Standard Specification for 75 % Silver-25 % % Graphite Sliding Contact Material


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    1. Scope

    1.1 This specification defines the criteria for composition and other requirements for brushes with a nominal silver content of 75 weight % with the balance being substantially graphite.

    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 Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.


    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

    B613 Guide for Preparing Specifications for Miniature Brushes of Composite Materials for Sliding Electric Contacts

    E18 Test Methods for Rockwell Hardness of Metallic Materials


    ICS Code

    ICS Number Code 77.120.99 (Other non-ferrous metals and their alloys)

    UNSPSC Code

    UNSPSC Code 30262800(Zinc bars and sheets)


    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/B0692-90R12

    Citation Format

    ASTM B692-90(2012), Standard Specification for 75 % Silver-25 % % Graphite Sliding Contact Material , ASTM International, West Conshohocken, PA, 2012, www.astm.org

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