ISO 6740:1985

Dried whey — Determination of nitrate and nitrite contents — Method by cadmium reduction and spectrometry

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.

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

67.100.99

Statut:

Annulée

Date de Publication:

1985-09-11

Numéro Standard:

ISO 6740:1985