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    ASTM D632 - 12(2020)e1

    Standard Specification for Sodium Chloride

    Active Standard ASTM D632 | Developed by Subcommittee: D04.31

    Book of Standards Volume: 04.03

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    Significance and Use

    A1.2 Significance and Use

    A1.2.1 The procedure for chemical analysis in this annex determines the total amount of chlorides present in the sample and expresses that value as sodium chloride.

    A1.2.2 This rapid method of analysis does not distinguish between sodium chloride and other evaporite chloride compounds with ice-melting capabilities. Typical rock salt and solar salt sometimes contains small amounts of CaCl2, MgCl2, and KCl, depending on the source of the material. When this rapid method is used on continuing shipments from a known source, it will provide a fast, essentially accurate determination of the sodium chloride content of the material furnished. Thus, the need for testing by the referee method, Test Method E534, is reduced.

    1. Scope

    1.1 This specification covers sodium chloride intended for use as a deicer and for road construction or maintenance purposes.

    1.2 The values stated as SI units are to be regarded as the standard.

    1.3 For purposes of determining conformance to this specification, values for chemical analysis shall be rounded to the nearest 0.1 %, and values for grading shall be rounded to the nearest 1 %, in accordance with the rounding method in Practice E29.

    1.4 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes shall not be considered as requirements of the specification.

    1.5 The following precautionary caveat pertains only to the test method in Annex A1 of this specification: 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.

    1.6 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

    C136/C136M Test Method for Sieve Analysis of Fine and Coarse Aggregates

    C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials

    E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E287 Specification for Laboratory Glass Graduated Burets

    E288 Specification for Laboratory Glass Volumetric Flasks

    E534 Test Methods for Chemical Analysis of Sodium Chloride

    ICS Code

    ICS Number Code 71.060.50 (Salts); 71.100.80 (Chemicals for purification of water)

    UNSPSC Code

    UNSPSC Code

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

    DOI: 10.1520/D0632-12R20E01

    Citation Format

    ASTM D632-12(2020)e1, Standard Specification for Sodium Chloride, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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