ISO 5397:1984

Leather — Determination of nitrogen content and "hide substance" — Titrimetric method

STANDARD published on 1.3.1984

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The information about the standard:

Designation standards: ISO 5397:1984
Publication date standards: 1.3.1984
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard
Category: Technical standards ISO

Annotation of standard text ISO 5397:1984 :

Description / Abstract: 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.