ISO 6740:1985
Dried whey — Determination of nitrate and nitrite contents — Method by cadmium reduction and spectrometry
Reference number
ISO 6740:1985
Edición 1
1985-09
Retirada
ISO 6740:1985
13197
Retirada (Edición 1, 1985)

Resumen

The principle of determination consists in dissolving the dried whey in 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 sampling shall be made as specified in ISO 707. A figure shows the apparatus for nitrate reduction.

Informaciones generales

  •  : Retirada
     : 1985-09
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 6
  • ISO/TC 34/SC 5
    67.100.99 
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