ISO 18489:2015规定了一种测定聚乙烯材料、管道和配件抗慢速裂纹扩展（SCG）能力的方法。本试验适用于从适当厚度的模压板或挤压管和注塑配件中提取的样品。 ISO 18489:2015提供了一种适用于不同聚乙烯等级在23°C环境温度下加速断裂力学表征的方法，尤其适用于管道应用的PE 80和PE 100类型。 注:通过使用不同的试验参数制定程序，本试验方法可适用于其他热塑性材料。

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.