Norm

ISO 5549:1978 en

Caseins and caseinates - Determination of protein content (Reference method)

  • Deze norm is ingetrokken sinds 14-02-2014

31,57

Over deze norm

Status Ingetrokken
Aantal pagina's 3
Commissie Melk en zuivelproducten
Gepubliceerd op 01-06-1978
Taal Engels
Does not apply to caseins and caseinates containing ammonium caseinate or other ammonium compounds, or other nitrogenous nonprotein compounds. The principle of determination consists in digesting a test portion with a mixture of potassium sulphate and sulphuric acid, in the presence of copper(II) sulphate as catalyst, to convert organic nitrogen into ammoniacal nitrogen, distilling and absorbing the ammonia in boric acid solution, titrating with standard volumetric hydrochloric acid solution and multiplying the resualt by the factor 6.38.

Details

ICS-code 67.100.99
Nederlandse titel Caseins and caseinates - Determination of protein content (Reference method)
Engelse titel Caseins and caseinates - Determination of protein content (Reference method)
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