ISO 8483:2003规定了玻璃纤维增强热固性塑料（GRP）塑料管道系统用螺栓法兰接头的试验方法。本标准仅适用于接头，包括证明其设计的试验方法。它假设接头可能会或不会受到静水压端推力的影响。 这些试验程序适用于所有标称尺寸的管道和管件之间的接头。本试验适用于评估在参考规范中规定的温度下输送液体应用的接头。

ISO 8483:2003 specifies methods of test for bolted flange joints for plastics piping systems made of glass-reinforced thermosetting plastics (GRP). This standard is only applicable to the joint, and covers methods of test to prove its design. It assumes that the joint either is or is not intended to be subject to the effects of hydrostatic end thrust. These test procedures are applicable to joints between pipes and fittings of all nominal sizes. The tests are applicable for evaluating joints intended for applications conveying liquids at temperatures specified in the referring specifications.