1.1 The constant tensile load joint test (CTLJT) is designed to demonstrate that a joint in a plastic piping system is resistant to the effects of long-term creep.
1.1.1 The joint is subjected to an internal pressure at least equal to its operating pressure and a sustained axial tensile load for a specified time period, usually 1000 h. The joint shall not leak, nor may the pipe completely pull out for the test duration. The total axial stress is set by the referencing document.
1.1.2 Some typical conditions for testing of joints on polyethylene pipe are described in Appendix X1.
1.2 This test is usually performed at 73 °F (22.8 °C).
1.3 The CTLJT was developed to demonstrate the long-term resistance to pullout of mechanical joints on polyethylene gas pipe. The CTLJT has also been successfully applied to the evaluation of other components of plastic piping systems. These applications are discussed in Appendix X1.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM F1588-96(2019) Referenced Document
ASTM D1600 Standard Terminology for Abbreviated Terms Relating to Plastics
ASTM D2122 Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
ASTM D2513 Standard Specification for Thermoplastic Gas Pressure Pipe, Tubing, and Fittings
ASTM D638 Standard Test Method for Tensile Properties of Plastics
ASTM F412 Standard Terminology Relating to Plastic Piping Systems*, 2023-07-20 Update
ASTM F1588-96(2019) history
2019ASTM F1588-96(2019) Standard Test Method for Constant Tensile Load Joint Test (CTLJT)
1996ASTM F1588-96(2015) Standard Test Method for Constant Tensile Load Joint Test (CTLJT)
1996ASTM F1588-96(2011) Standard Test Method for Constant Tensile Load Joint Test (CTLJT)
2007ASTM F1588-96(2007) Standard Test Method for Constant Tensile Load Joint Test (CTLJT)
1996ASTM F1588-96(2002) Standard Test Method for Constant Tensile Load Joint Test (CTLJT)
1996ASTM F1588-96 Standard Test Method for Constant Tensile Load Joint Test (CTLJT)