Active standard | Published: 01/03/1984

ISO 5397:1984

Leather — Determination of nitrogen content and "hide substance" — Titrimetric method
(Cuir — Détermination de la teneur en azote et de la "substance dermique" — Méthode titrimétrique)

Available languages: English, French

Available design: electronic design (pdf), Print design

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Detail information

Designation: ISO 5397:1984

Publication date: 01/03/1984

Pages: 3

Country: International technical standard

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Anotation

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.

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