ANSI/ASTM F1588-1996
恒定拉伸载荷连接试验方法

Test Method for Constant Tensile Load Joint Test (CTLJT)


 

 

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标准号
ANSI/ASTM F1588-1996
发布日期
1996年
实施日期
废止日期
中国标准分类号
P04
国际标准分类号
23.040.20
发布单位
US-ANSI
适用范围
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. 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. Some typical conditions for testing of joints on polyethylene pipe are described in Appendix X1. This test is usually performed at 73?F (22.8?C). 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. 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.




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