ASTM D3123-98(2004)

    Standard Test Method for Spiral Flow of Low-Pressure Thermosetting Molding Compounds


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    1. Scope

    1.1 This test method covers a procedure for measuring the spiral flow of thermosetting molding compounds (soft or very soft) designed for molding pressures under 6.9 MPa [1000 psi]. It is especially suited for those compounds that may be used for encapsulation or other low pressure molding techniques. Textile-reinforced compounds should not be tested using this test method. It involves the use of a standard spiral flow mold in a transfer molding press under specified conditions of applied temperature and pressure with a controlled charge mass.

    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.

    Note 1

    There is no equivalent ISO standard.


    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

    D883 Terminology Relating to Plastics

    D958 Practice for Determining Temperatures of Standard ASTM Molds for Test Specimens of Plastics

    E105 Practice for Probability Sampling of Materials


    ICS Code

    ICS Number Code 83.140.99 (Other rubber and plastic products)

    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/D3123-98R04

    Citation Format

    ASTM D3123-98(2004), Standard Test Method for Spiral Flow of Low-Pressure Thermosetting Molding Compounds, ASTM International, West Conshohocken, PA, 2004, www.astm.org

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