ISO 5397:1984
ISO 5397:1984 Leather – Determination of nitrogen content and “hide substance” – Titrimetric method
CDN $86.00
Description
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.
Edition
1
Published Date
1984-03-01
Status
PUBLISHED
Pages
3
Language
English
Format
Secure PDF
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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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