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Homepage>ISO Standards>ISO 5397:1984 | IULTCS/IUC 10-Leather — Determination of nitrogen content and "hide substance" — Titrimetric method
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download between 0-24 hoursReleased: 1984 | IULTCS/IUC 10
ISO 5397:1984 | IULTCS/IUC 10-Leather — Determination of nitrogen content and "hide substance" — Titrimetric method

ISO 5397:1984 | IULTCS/IUC 10

ISO 5397:1984 | IULTCS/IUC 10-Leather — Determination of nitrogen content and "hide substance" — Titrimetric method

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Standard´s number:ISO 5397:1984 | IULTCS/IUC 10
Pages:3
Edition:1
Released:1984 | IULTCS/IUC 10
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ISO 5397:1984 | IULTCS/IUC 10


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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