标准摘要
[中文适用范围]： 本国际标准规定了测定聚乙烯材料、管道和配件的抗慢速裂纹扩展（SCG）能力的方法。 该测试适用于从压塑片材或挤压管以及适当厚度的注塑配件中取出的样品。 本国际标准提供了一种适用于在 23 °C 环境温度下对不同聚乙烯等级进行加速断裂力学表征的方法，特别是适用于管道应用的 PE 80 和 PE 100 类型。 注：通过使用不同的测试参数开发程序，该测试方法可以适用于其他热塑性材料。 [外文原描述]： ISO 18489:2015 specifies a method to determine the resistance to slow crack growth (SCG) of polyethylene materials, pipes, and fittings. The test is applicable to samples taken from compression moulded sheet or extruded pipes and injection moulded fittings of suitable thickness. ISO 18489:2015 provides a method that is suitable for an accelerated fracture-mechanics characterization at ambient temperatures of 23 °C of different polyethylene grades, especially for PE 80 and PE 100 types for pipe applications. NOTE This test method could be adapted for other thermoplastics materials by developing the procedure using different test parameters.
英文名称Polyethylene (PE) materials for piping systems — Determination of resistance to slow crack growth under cyclic loading — Cracked Round Bar test method