色漆和清漆.杯吸试验

[中文适用范围]： 本标准规定了一个经验性的试验程序，评价色漆、清漆及有关产品的涂层在标准条件下经压陷逐渐 变形后，其抗开裂或抗与金属底材脱离的性能。 本标准适用于单涂层或复合涂层体系，对复合涂层体系来讲，可对每一涂层分别进行试验或对整个 体系进行试验。 可按如下规定的试验方法： ——按规定的压陷深度进行试验，按照是否符合特定要求而评定其“通过／不通过”； ——逐渐增加压陷深度，以测定涂层刚出现开裂或开始脱离底材时的最小深度。 [外文原描述]： ISO 1520:2006 specifies an empirical test procedure for assessing the resistance of a coating of paint, varnish or related product to cracking and/or detachment from a metal substrate when subjected to gradual deformation by indentation under standard conditions. For a multi-coat system, each coat may be tested separately or the complete system may be tested. The method may be carried out as follows: either as a 'pass/fail' test, by testing to a specified depth of indentation to assess compliance with a particular requirement; or by gradually increasing the depth of indentation to determine the minimum depth at which the coating cracks and/or becomes detached from the substrate.