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Significance and Use
5.1 Brown and Lu 4,5 show the Charpy impact energy is related to the ultimate critical temperature of the rapid crack propagation [RCP] behavior as measured by the ISO 13477, S-4 test.6
5.2 The test method may be used to determine the impact energy of polyethylene used in the manufacture of pipe . This test method involves the preparation of a small compression molded specimen of PE resin that is then notched in a specified manner. The specimen is then broken in a pendulum impact machine. The impact energy is recorded in joules. The value obtained is referred to as the Charpy impact energy.
1.1 This test method describes the specimen preparation and the method of measuring the impact energy of polyethylene used in pressurized pipes.
1.2 The test specimens are taken from compression molded plaques of the resin from pellets or pipe.
1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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.
D6110 Test Method for Determining the Charpy Impact Resistance of Notched Specimens of Plastics
F412 Terminology Relating to Plastic Piping Systems
ISO StandardISO 13477 Small Scale Steady State S-4 Test Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
ICS Number Code 23.040.20 (Plastic pipes)
UNSPSC Code 40171500(Commercial pipe and piping)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM F2231-02(2013), Standard Test Method for Charpy Impact Test on Thin Specimens of Polyethylene Used in Pressurized Pipes, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top