ISO 1598:1990 塑料.醋酸纤维素.不可溶颗粒的测定
标准编号:ISO 1598:1990
中文名称:塑料.醋酸纤维素.不可溶颗粒的测定
英文名称:Plastics - Cellulose acetate — Determination of insoluble particles
发布日期:1990-09
标准范围
规定了测定不溶性和可见颗粒数量的试验方法,包括醋酸纤维素中的所有杂质和外来颗粒。将试样溶解在二氯甲烷、甲醇和邻苯二甲酸二甲酯的混合物中。在边长为25 mm的正方形区域内,对直径大于0.15 mm的所有可见颗粒进行计数。
Specifies a test method for determinig the number of insoluble and visible particles including all impurties and foreign particles in cellulose acetate. A test portion is dissolved in a mixture of dichloromethane, methanol and dimethylphthalate. Counting of all visible particles with a diameter greater than 0,15 mm in a square area with a side length of 25 mm.
标准预览图


