ASTM D4399 - 05(2017)

    Standard Test Method for Measuring Electrical Conductivity of Electrocoat Baths

    Active Standard ASTM D4399 | Developed by Subcommittee: D01.21

    Book of Standards Volume: 06.01


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    Significance and Use

    4.1 The conductivity of electrocoat baths results from the presence of ionic species in the bath, which come from the vehicle and from the presence of impurities present as ionizable acids, bases, salts, or combinations of these. The presence of excessive amounts of ionic impurities is detrimental to the application and performance properties of electrocoating paints. The test is suitable for use in research, production, quality control and electrocoat bath process control.

    4.2 Other related methods for determining the electrical conductivity of water are described in Test Methods D1125.

    1. Scope

    1.1 This test method covers the determination of the electrical conductivity of electrocoat baths or ultrafiltrate samples using commercially available equipment.

    1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 establish appropriate safety and health 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

    D1125 Test Methods for Electrical Conductivity and Resistivity of Water

    D1193 Specification for Reagent Water


    ICS Code

    ICS Number Code 25.220.40 (Metallic coatings)

    UNSPSC Code

    UNSPSC Code 73181101(Electro coating services)


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

    DOI: 10.1520/D4399-05R17

    Citation Format

    ASTM D4399-05(2017), Standard Test Method for Measuring Electrical Conductivity of Electrocoat Baths, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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