色漆和清漆用粘合剂——工业硝酸纤维素溶液粘度的测定及其分类

[中文适用范围]： 本国际标准规定了测定工业硝酸纤维素（通常称为硝化纤维素）粘度的方法，其氮含量可在 10.7 质量% 至 12.6 % 之间变化，具体取决于类型。 它还给出了工业硝酸纤维素溶液的分类系统（见附件 A），该系统基于使用该方法进行的粘度测量。 使用标准程序会产生“标准”类型，并避免由于确定粘度的方法有多种以及可用溶剂的种类繁多而可能导致的分类差异。 [外文原描述]： This International Standard specifies a method of determining the viscosity of industrial cellulose nitrate, usually referred to as nitrocellulose, the nitrogen content of which can vary between 10,7 % by mass and 12,6 % by mass, depending on the type. It also gives a classification system for industrial cellulose nitrate solutions (see annex A) which is based on viscosity measurements made using the method. The use of a standard procedure results in "standard" types and avoids classification differences which could be caused by the fact that there are many ways of determining viscosity and a wide variety of solvents available.