1.1 This practice provides standardized sample butt fusion preparation, conditioning, and testing conditions for tension testing of specimens prepared from sample butt fusion joints or hydrostatic tests of sample butt fusion joints in accordance with: 1.1.1 Test Method D638, tension testing; 220.127.116.11 The preparation or use of tensile specimens other than Test Method D638 Types I-V is beyond the scope of this practice. 1.1.2 Test Method D1598, constant (sustained) hydraulic pressure testing; and 1.1.3 Test Method D1599, short-term hydraulic pressure testing. 1.2 It is not within the scope of this practice to include plastic materials other than polyethylene or other tests for butt fusions. The exclusion of other plastic materials and other tests does not imply that other plastic materials are suitable or unsuitable for butt fusion, or that the tests cited herein are adequate or inadequate for qualitative characterization and for research and development of butt fusion joints, or that other tests do not have lesser, equal, or greater utility for such purpose. 1.3 The evaluation of test results and the determination of test result evaluation criteria are not within the scope of this practice. This practice is limited to standardized butt fusion test specimens and testing conditions for the comparison of test data from multiple parties. 1.4 Units 1.4.1 Units in Referenced Test Methods-The values stated in either SI units or inch-pound units as specified in Test Method D638 or Test Method D1598 or Test Method D1599 are to be regarded separately as the standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.4.2 Units in this Practice-The values stated in either SI units or inch-pound units in this practice are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. Values in parentheses are provided for informational purposes only. 1.5 In this standard, text in parentheses, notes in the body of the standard, and appendices are informational and nonmandatory. For tables in the body of the standard, table notes are mandatory. 1.6 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.
Practice F2620 is based on PPI TR-33 generic butt fusion joining procedures. Per PPI TR-33, the TR-33/F2620 butt fusion procedure was qualified using tensile, quick burst, and sustained pressure testing. However, Test Methods D638, D1599, and D1598 do not include requirements for butt fusion test specimens or requirements for evaluating butt fusion test specimens. This practice provides specimen requirements, testing requirements, and test result evaluation criteria for tensile, quick burst, and sustained pressure testing. Using standardized test specimens and evaluation criteria from this practice, alternate butt fusion procedures and joints made using Practice F2620 procedure or alternate butt fusion procedures may be evaluated to determine if the procedure produces sound joints or qualify persons making butt fusion joints in accordance with the applicable procedure.
Keywordsfusion; butt fusion; joining; polyethylene; PE; pipe; plastic; pipe; tubing; tensile test; tension test; quick burst test; constant internal pressure test; sustained internal pressure test; sustained pressure test; hydrostatic test; hydraulic test; fusion qualification
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Ballot Item Approved as F2928-2013 and Pending Publication