ASTM F1473 - 13

    Standard Test Method for Notch Tensile Test to Measure the Resistance to Slow Crack Growth of Polyethylene Pipes and Resins

    Active Standard ASTM F1473 | Developed by Subcommittee: F17.40

    Book of Standards Volume: 08.04


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    Significance and Use

    5.1 This test method is useful to measure the slow crack growth resistance of molded plaques of polyethylene materials at accelerated conditions such as 80°C, 2.4-MPa stress, and with a sharp notch.

    5.2 The testing time or time to failure depends on the following test parameters: temperature; stress; notch depth; and specimen geometry. Increasing temperature, stress, and notch depth decrease the time to failure. Thus, in reporting the test time or time to failure, all the conditions of the test shall be specified.

    1. Scope

    1.1 This test method determines the resistance of polyethylene materials to slow crack growth under conditions specified within.

    Note 1This test method is known as PENT (Pennsylvania Notch Test) test.

    1.2 The test is generally performed at 80°C and at 2.4 MPa, but may also be done at temperatures below 80°C and with other stresses low enough to preclude ductile failure and thereby eventually induce brittle type of failure. Generally, polyethylenes will ultimately fail in a brittle manner by slow crack growth at 80°C if the stress is below 2.4 MPa.

    1.3 The test method is for specimens cut from compression molded plaques.2 See Appendix X1 for information relating to specimens from pipe.

    1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    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

    D1600 Terminology for Abbreviated Terms Relating to Plastics

    D4703 Practice for Compression Molding Thermoplastic Materials into Test Specimens, Plaques, or Sheets

    F412 Terminology Relating to Plastic Piping Systems


    ICS Code

    ICS Number Code 23.040.20 (Plastic pipes)

    UNSPSC Code

    UNSPSC Code 40171500(Commercial pipe and piping)


    DOI: 10.1520/F1473

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