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Standard ČSN ISO 937 1.5.2024 preview

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ČSN ISO 937 (576023)

Meat and meat products - Determination of nitrogen content - Reference method

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STANDARD published on 1.5.2024


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The information about the standard:

Designation standards: ČSN ISO 937
Classification mark: 576023
Catalog number: 519277
Publication date standards: 1.5.2024
SKU: NS-1181105
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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Meat and meat products

Annotation of standard text ČSN ISO 937 (576023):

Tento dokument specifikuje referenční metodu pro stanovení obsahu dusíku v mase a masných výrobcích podle Kjeldahlova principu. Zkušební podíl se rozloží koncentrovanou kyselinou sírovou za použití síranu měďnatého jako katalyzátoru za účelem přeměny organického dusíku na amonné ionty; amoniak uvolněný po alkalizaci se destiluje do přebytku roztoku kyseliny borité a titruje kyselinou chlorovodíkovou nebo sírovou. Obsah dusíku ve vzorku se vypočítá z množství amoniaku

Preview of the standard ČSN ISO 937 (576023)

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