Калий едкий технический. Определение содержания натрия. Спектрометрический метод эмиссии в пламени
Название (англ.):
Potassium hydroxide for industrial use; Determination of sodium content; Flame emission spectrophotometric method
Описание (англ.):
The method is applicable to products having sodium contents greater than 0.01 % (m/m). The principle consists in the dissolution of a test portion, followed by acidification to ph value 1. Atomization of the obtained solution in the burner of a flame spectrophotometer. Measurement of the intensity of the radiation emitted at 589 nm; comparison with the intensity obtained for standard sodium chloride solutions, theacidity and potassium chloride content of which are equivalent to that of the test solution. - Cancels and replaces ISO Recommendation R 1550-1970.
Дата регистрации:
10.12.73
Дата введения:
01.12.73
Дата отмены:
30.05.02
Код КГС:
Л19
Код ОКСТУ:
2123;2109
Код ОКС(МКС):
71.060.40
Код ОКП:
2123;2109
Нормативные ссылки:
BS 5634-1978, NEQ*NBN T 03-194-1980, EQV*NF T20-377-1977, EQV*NP-1496-1977, EQV
Ключевые слова:
CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CHEMICALS DETERMINATION OF CONTENT EMISSION SPECTROPHOTOMETRY POTASSIUM HYDROXIDE POTASSIUM HYDROXIDES SODIUM SPECTROPHOTOMETRY CHEMICAL ANALYSIS AND TESTIN