Status : Published (Under review)
This standard was last reviewed and confirmed in 2021. Therefore this version remains current.
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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.

General information

  • Status
     : Published
    Publication date
     : 1984-03
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 3
  • Technical Committee :
    IULTCS
    ICS :
    59.140.30 
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