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ISO 5397:1984

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

Standard Details

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.

General Information

Status : Published
Standard Type: Main
Document No: ISO 5397:1984
Document Year: 1984
Pages: 3
Edition: 1

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ISO 5397:1984
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