ASTM D3288 / D3288M - 15

    Standard Test Methods for Magnet-Wire Enamels

    Active Standard ASTM D3288 / D3288M | Developed by Subcommittee: D09.12

    Book of Standards Volume: 10.02

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    Significance and Use

    4.1 These tests are useful for specification and control purposes during the manufacture, purchase, and use of the magnet-wire enamels, and for determining uniformity of batches.

    1. Scope

    1.1 These test methods cover testing liquid enamel coatings used to produce film-insulated magnet wire.

    1.2 The values stated in either lbs/gal or SI units are to be regarded separately as standard.

    1.3 The test methods appear as follows:




    6 – 10

    Determined Solids

    16 – 22

    Effective Solids

    31 – 37

    Flash Point

    11 – 15

    Infrared Analysis

    45 – 50

    Stack Loss

    23 – 30


    38 – 44

    1.4 There is no known IEC equivalent document.

    1.5 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.

    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

    D29 Test Methods for Sampling and Testing Lac Resins

    D56 Test Method for Flash Point by Tag Closed Cup Tester

    D476 Classification for Dry Pigmentary Titanium Dioxide Products

    D1298 Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method

    D1475 Test Method For Density of Liquid Coatings, Inks, and Related Products

    D1711 Terminology Relating to Electrical Insulation

    D5423 Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation

    E131 Terminology Relating to Molecular Spectroscopy

    E168 Practices for General Techniques of Infrared Quantitative Analysis

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    E2975 Test Method for Calibration of Concentric Cylinder Rotational Viscometers

    ICS Code

    ICS Number Code 25.220.50 (Enamels)

    UNSPSC Code

    UNSPSC Code 26121509(Magnet wire)

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

    DOI: 10.1520/D3288_D3288M-15

    Citation Format

    ASTM D3288 / D3288M-15, Standard Test Methods for Magnet-Wire Enamels, ASTM International, West Conshohocken, PA, 2015,

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