ISO 7768:2009规定了一种评估测试织物在一次或多次清洁处理后保持原始光滑外观的方法。 该方法主要用于ISO 6330中定义的B型家用洗衣机的清洁过程。但是，根据同一国际标准的定义，也可以将其与A型机器一起使用。该测试方法可用于判断其他清洗过程后的平滑度外观。

ISO 7768:2009 specifies a method for assessing the retention of the original smooth appearance, after one or several cleansing treatments, of the fabrics tested. This method has been developed for use primarily with Type B domestic washing machines, as defined in ISO 6330, in the cleansing process. However, it may be possible to use it with Type A machines, as defined in the same International Standard. This test method could be used for judging smoothness appearance after other cleansing processes.