ISO 6740:1985 PDF
Dried whey — Determination of nitrate and nitrite contents — Method by cadmium reduction and spectrometry
Dried whey — Determination of nitrate and nitrite contents — Method by cadmium reduction and spectrometry
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 6
- Дата публикации:
- 12 сентября 1985 г.
- Издание:
- ISO IS 6740 edition 1 version 1
- ICS:
- 67.100.99
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.
Технические детали
- Технический комитет
- ISO/TC 34/SC 5 - Milk and milk products
- SKU
- ISO 6740:1985