参照国际标准并结合其不同版本内容的变化 ,通过验证和对比试验 ,对塑料管材与管件不透光性测试的试验参数和操作中的主要影响因素进行了分析 ,对测试方法中的相关问题提出了建议 According to the international standards and the changes of their different versions, the test parameters and the main influencing factors in the opacity test of plastic pipe and fittings were analyzed through verification and comparative tests. Relevant problems in the test methods were put forward Suggestion