SIST ISO 5397:1998

Oznaka standarda: SIST ISO 5397:1998
Koda projekta: 011439
Organizacija: SIST
Naslov (angleški): Leather -- Determination of nitrogen content and "hide substance" -- Titrimetric method
Naslov (slovenski): Usnje - Določevanje dušika in “kožne substance” - Titracijska metoda
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SIST ISO 5397:1998 angleški jezik Active SIST-A: 27.83 EUR
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Tehnični odbor: IUSN - Usnje
ICS: 59.140.30
Status: Objavljen
Objavljen: 01-apr-1998
Refer. št. objave: Sporocila 1998-04-01
Referenčna oznaka: ISO 5397:1984
Področje projekta (angleško): 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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