Standard Test Method for Constant Tensile Load Joint Test (CTLJT)

Importancia y uso:

5.1 This test method was designed to be used to validate the long-term resistance to pullout of joints designed for use in plastic natural gas piping systems.

5.2 This test method is used in addition to the short-term tests required by OPS Part 192.283b, Title 49. Informal versions of this test method are used by manufacturers and utilities to demonstrate that a joint is resistant to the effects of long-term creep and meets the requirements for classification as a Category 1 or a Category 3 joint in accordance with Specification D2513.

5.3 This test method may also be applicable for the determination of the effects of a sustained axial load on joints or other components of plastic piping systems designed for other applications. Test parameters and the internal pressurizing fluid, if any, should be listed in the referencing document.

5.4 Documents that reference this test method for products other than joints shall specify test conditions and performance requirements. In general, such products pass this test if they maintain their structural integrity, do not leak, and perform to specification during and after the test.

Subcomité:

F17.40

Referida por:

F2145-23, F1973-21, F1924-19, F1948-20, F3253-24

Volúmen:

08.04

Número ICS:

23.040.20 (Plastic pipes)

Palabras clave:

constant tensile load; mechanical fitting; mechanical joint; polyethylene gas pipe; pull-out; tensile test;