ISO 5506:1988 PDF
Soya bean products — Determination of urease activity
Название (английский):
ISO 5506:1988
Soya bean products — Determination of urease activity
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 18 августа 1988 г.
- Издание:
- ISO IS 5506 edition 2 version 1
- ICS:
- 65.120
Описание (английский):
The method allows inadequate cookingof the products to be detected. It applies to products having a urease activity of less than 1 mg of nitrogen per gram of product as received. For more active products the mass of test may be reduced. The principle consists in mixing of a ground test portion with a buffered urea solution, after keeping the mixture for 30 min at 30 C, neutralization of the ammonia liberated, with an exess of hydrochloric acid solution, and back-titration with standard volumetric hydroxide solution.
Технические детали
- Технический комитет
- ISO/TC 34/SC 2 - Oleaginous seeds and fruits and oilseed meals
- SKU
- ISO 5506:1988