Reference number
ISO 6739:1988
© ISO 2025
ISO 6739:1988
Whey cheese — Determination of nitrate and nitrite contents — Method by cadmium reduction and spectrometry
Edition 2
1988-08
Withdrawn
Withdrawn (Edition 2, 1988)

Abstract

Is suitable for all kinds of whey cheese. The principle of determination consists in extracting the whey cheese with warm water, precipitating the fat and proteins, filtering and reducing the nitrate in a portion of the filtrate to nitrite by means of copperized cadmium. The apparatus for nitrate reduction is shown in a figure.

General information

  • Status
     : Withdrawn
    Publication date
     : 1988-08
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 2
    Number of pages
     : 6
  • Technical Committee :
    ISO/TC 34/SC 5
    ICS :
    67.100.30 
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