本标准规定了一种用于在具有弹性密封环型接头的任何具有公称直径dn，小于或等于315mm的热塑性压力管的注射成型热塑性塑料配件的20℃下测试耐内压静力压力的方法，其中接头不能承受静水端推力。该方法用于在材料相关的压力（通常为配件的额定压力的几倍）的压力下，在1小时至10小时的时间段内对配件进行测试

This standard specifies a method for testing the resistance to internal hydrostatic pressure at 20°C of any injection-moulded thermoplastics fittings with elastic sealing ring type joints for thermoplastics pressure pipes having a nominal diameter, dn, less than or equal to 315 mm, where the joint is not intended to withstand hydrostatic end thrust. This method is intended for testing fittings over a period of the order of 1 h to 10 h at a pressure which is material-dependent and typically several times the nominal pressure of the fitting.