油漆和清漆 - 人工风化包括酸性沉积

[中文适用范围]： 本文件规定了所谓的酸露和雾试验（ADF 试验）作为一种加速实验室试验方法，用于通过使用人工酸性降水来模拟酸性大气降水与紫外线辐射、中性凝结降水、以及改变温度和湿度。 该测试方法旨在根据相对性能排名评估涂漆材料在有酸性沉淀的室外环境中使用的适用性。 它并不是为了产生与室外风化相同程度的损坏或相同的损坏模式，而是给出与室外风化中获得的类似的排名。 该方法产生的损伤更均匀，允许暴露更少的样本（因此测试更快速），并且能够使用比视觉评估更客观的方法对暴露的样本进行评估。 [外文原描述]： ISO 15110:2017 specifies a so-called acid dew and fog test (ADF test) as an accelerated laboratory test method for simulating, by the use of artificial acidic precipitation, the damaging effects of acidic atmospheric precipitation in association with UV radiation, neutral condensed precipitation, and changing temperature and humidity. This test method is intended to be used in evaluating, on the basis of relative performance rankings, the suitability of painted materials for use in outdoor environments with acidic precipitation. It is not intended to generate the same extent of damage or the same damage pattern as in outdoor weathering, but rather to give a ranking which is similar to that which would be obtained in outdoor weathering. The method produces damage which is more homogeneous, allows fewer specimens to be exposed (and hence more rapid testing) and enables evaluation of the exposed specimens to be carried out using methods which are more objective than visual assessment.