BS ISO 18489:2015规定了测定抗缓慢裂纹扩展（SCG）能力的方法 聚乙烯材料、管道和配件。本试验适用于压缩后的样品 适当厚度的模制薄板或挤压管和注塑配件。本国际标准提供了一种适用于加速断裂力学的方法 在23°C的环境温度下对不同等级的聚乙烯（尤其是PE 80）进行表征 管道应用的PE 100类型。注:通过制定程序，本试验方法可适用于其他热塑性材料 使用不同的测试参数。交叉引用:ISO 291ISO 2818ISO 3126购买本文件时可获得的所有现行修订均包含在购买本文件中。

BS 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.This International Standard 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.Cross References:ISO 291ISO 2818ISO 3126All current amendments available at time of purchase are included with the purchase of this document.