ISO 9117-4:2012规定了使用机械直线或循环干燥时间记录仪测定有机涂层达到不同干燥阶段所需时间的试验。当一种涂层形成凝胶的速度可能比另一种涂层快，或者可能比另一种涂层更好地抵抗刮擦时，使用机械记录仪在比较同一通用类型涂层的干燥行为方面很有价值。该试验旨在模拟涂漆物品相互堆叠时的条件。

ISO 9117-4:2012 specifies a test for determining the times taken to reach various stages of drying of organic coatings, using a mechanical straight-line or circular drying-time recorder. The use of a mechanical recorder is valuable in comparing the drying behaviour of coatings of the same generic type, when one coating might form a gel at a faster rate than another or might resist scratching better than another. The test is intended to simulate the conditions which exist when painted articles are stacked upon each other.