橡胶或塑料涂覆织物. 静态条件下抗臭氧龟裂的测定

[中文适用范围]： 本标准规定了在静态条件下测定橡胶或塑料涂层织物耐臭氧龟裂性能的方法。 该测试旨在确定涂有橡胶或塑料的织物在没有阳光直射的情况下，在静态应变下暴露于含有臭氧的空气中时的相对抗开裂性。 与所有老化测试一样，它应被视为比较相同成分和相同应用的制品的一种手段，但不能作为绝对标准。 优选地，通过仅将其视为当织物获得优于与某种类型的降解相比给出的阈值时的控制手段来限制测试的重要性。 考虑到这些说明，测试时获得的结果不能作为对产品寿命长度的预测。 [外文原描述]： This document specifies a method for the determination of the resistance of fabrics coated with rubber or plastics to ozone cracking under static conditions. The test is designed to determine the relative resistance to cracking of fabric coated with rubber or plastics when exposed under static strain to air containing ozone in the absence of direct sunlight. Like all ageing tests, it should be considered as a means of comparing articles of the same composition and destined for the same application, but not as an absolute criterion. It is preferable to limit the significance of the test by considering it only as a means of control when a fabric attains a resistance superior to a threshold given in comparison with a certain type of degradation. Taking these remarks into account, the results obtained at the time of test cannot be taken as a prediction of the length of life of the product.