本文件规定了一种测试方法，用于确定埋地热塑性塑料非压力管道系统的弹性密封环型接头的密封性。 除非参考标准另有规定，否则试验在以下基本试验压力下进行: -p1:内部负气压(部分真空)； -p2:低内部静水压力； -p3:较高的内部静水压力。 它还描述了进行测试的以下四种测试条件: a)条件A:没有任何附加的直径或角度偏转； b)条件B:具有直径偏转； c)条件C:具有角偏转； d)条件D:具有同时的角度和直径偏转。 参考标准中规定了试验压力和试验条件的适用选择。

This document specifies a test method for determining the leaktightness of elastomeric sealing ring type joints for buried thermoplastics non-pressure piping systems. Unless otherwise specified in the referring standard, the tests are carried out at the following basic test pressures: — p₁: internal negative air pressure (partial vacuum); — p₂: a low internal hydrostatic pressure; — p₃: a higher internal hydrostatic pressure. It also describes the following four test conditions under which the tests are performed: a) Condition A: without any additional diametric or angular deflection; b) Condition B: with diametric deflection; c) Condition C: with angular deflection; d) Condition D: with simultaneous angular and diametric deflection. The applicable selection of the test pressure(s) and the test condition(s) is/are specified in the referring standard.