ISO 5397:1984 皮革.氮含量和"皮质”含量的测定.滴定法

标准编号：ISO 5397:1984

中文名称：皮革.氮含量和"皮质”含量的测定.滴定法

英文名称：Leather — Determination of nitrogen content and "hide substance" — Titrimetric method

发布日期：1984-03

标准范围

其原理包括用凯氏法分解试验部分，蒸馏释放出的氨，用硫酸或盐酸滴定氨，以酚酞为指示剂测定氮含量。该方法适用于所有制革类型中的所有皮革。

The principle consists in decomposition of a test portion by Kjeldahl method, distillation of the ammonia liberated, determination of the nitrogen content by titration of the ammonia with sulfuric or hydrochloric acid, using phenolphthalein as indicator. The method is applicable to all types of leather in all types of tannage.

标准预览图