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ISO 5397:1984

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Leather -- Determination of nitrogen content and hide substance -- Titrimetric method

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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.


SDO ISO: International Organization for Standardization
Document Number ISO 5397
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee IULTCS/IULTCS
Publish Date Document Id Type View
Not Available ISO 5397:1984 Revision