ASTM D1305-99

    Standard Specification for Electrical Insulating Paper and Paperboard-Sulfate (Kraft) Layer Type


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    1. Scope

    1.1 This specification covers electrical grade unsized, unbleached sulfate paper and paperboard for use as layer insulation in coils, transformers, and similar apparatus. Tissue for the manufacture of capacitors is not included in this specification. Other commonly used designations include:

    1.1.1 Soft Coil Wrap,

    1.1.2 Dense Coil Wrap,

    1.1.3 Kraft Coil Insulation,

    1.1.4 Dry-Finished Kraft, and

    1.1.5 Water-Finished Kraft.


    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

    D202 Test Methods for Sampling and Testing Untreated Paper Used for Electrical Insulation

    D1711 Terminology Relating to Electrical Insulation


    ICS Code

    ICS Number Code 29.035.10 (Paper and board insulating materials)

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

    DOI: 10.1520/D1305-99

    Citation Format

    ASTM D1305-99, Standard Specification for Electrical Insulating Paper and Paperboard-Sulfate (Kraft) Layer Type, ASTM International, West Conshohocken, PA, 1999, www.astm.org

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