Plastics — Determination of resistance to environmental stress cracking (ESC) — Part 5: Constant tensile deformation method
塑料制品;抗环境应力开裂(ESC)的测定第5部分:恒定拉伸变形法
发布日期:
2006-08-08
ISO 22088-5:2006规定了热塑性塑料在存在化学介质的情况下承受恒定拉伸变形时环境应力开裂(ESC)行为的测定方法。
它适用于通过模塑和/或机加工制备的试样,可用于评估暴露在不同环境中的塑料材料的ESC行为,以及确定暴露在特定环境中的不同塑料材料的ESC行为。
这本质上是一种排名测试,并不打算提供用于设计或性能预测的数据。
ISO 22088-3和ISO 22088-4规定了通过恒定应变试验确定环境应力开裂的替代方法。ISO 22088-2规定了通过恒定拉伸载荷确定环境应力开裂的方法。
ISO 22088-5:2006 specifies a method for the determination of the environmental stress cracking (ESC) behaviour of thermoplastics when they are subjected to a constant tensile deformation in the presence of a chemical medium.
It is applicable to test specimens prepared by moulding and/or machining and can be used for the assessment of the ESC behaviour of plastic materials exposed to different environments, as well as for the determination of the ESC behaviour of different plastic materials exposed to a specific environment.
This is essentially a ranking test and is not intended to provide data to be used for design or performance prediction.
Alternative methods for the determination of environmental stress cracking by means of a constant-strain test are specified in ISO 22088-3 and ISO 22088-4. A method for the determination of environmental stress cracking by means of a constant tensile load is specified in ISO 22088-2.