橡胶或塑料涂层织物 - 汽车内部装饰材料起雾特性的测定

[中文适用范围]： 本文件规定了一种测试方法，旨在确定用作机动车辆内部装饰材料的橡胶或塑料涂层织物的起雾特性。 该方法还可以应用于作为此类装饰材料的基础或制造该材料的流体、糊状、粉末状或固体原材料。 该方法也适用于其他材料和成品。 本程序适用于测试条件限制内玻璃表面凝结雾的测量。 该测试无法准确测量以下情况： ——冷凝水的表面张力较低，导致早期聚结成透明薄膜； ——冷凝物的存在量如此之大，以至于液滴合并并形成厚重的油性/透明薄膜（这种厚重的薄膜会导致读数错误）。 在这种情况下，优选重量分析法。 [外文原描述]： This document specifies a test method which is intended to determine the fogging characteristics of rubber- or plastics-coated fabrics that are used as trim materials in the interior of motor vehicles. The method can also apply to fluid, pasty, powdered or solid raw materials which are the basis for such trim materials or from which the materials are manufactured. The method can also apply to other materials and finished products. The procedure is applicable to the measurement of fog condensate on glass surfaces within the limits of the test conditions. This test cannot measure accurately those cases in which: — the surface tension of the condensate is low, resulting in early coalescing into a thin transparent film; — the condensate is present in such a large quantity that the droplets coalesce and form a heavy oily/clear film (this heavy film gives false readings). In such cases, the gravimetric method is preferred.