Мясо и мясные продукты. Определение содержания азота (контрольный метод)
Название (англ.):
Meat and meat products; Determination of nitrogen content (Reference method)
Описание (англ.):
The method consists in digesting of a test portion with concentrated sulphuric acid, using copper(II) sulphate as a catalyst, to convert organic nitrogen to ammonia ions. Then alkalisation, distillation of the liberated ammonia into an excess of boric acid solution, titration with hydrochloric acid to determine the ammonia bound by the boric acid, and calculation of nitrogen content of the sample from the amount of ammonia produced.
Дата введения:
01.12.78
Код КГС:
Н19
Код ОКСТУ:
9209;9210
Код ОКС(МКС):
67.120.10
Код ОКП:
9209;9210
Нормативные ссылки:
BS 4401 PART 2-1980, EQV*DS/ISO 937-1979, EQV*NF V04-407-1972, NEQ*NP-1612-1979, EQV*UNI ISO 937(1991/UNI), EQV*NEN-ISO 937(1992/NNI), EQV
Ключевые слова:
CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING DETERMINATION OF CONTENT MEAT MEAT PRODUCTS NITROGEN REFERENCE METHODS CHEMICAL ANALYSIS AND TESTIN