Хлорид калия технический. Определение содержания калия. Спектрофотометрический метод эмиссии в пламени
Название (англ.):
Potassium chloride for industrial use; Determination of potassium content; Flame emission spectrophotometric method
Описание (англ.):
Is applicable to products having a minimum KCl content of about 95 % (m/m). The principle consists in dissolution of a test portion taken from the laboratory sample, previously ground and sifted. Acidification to pH 1 after suitable dilution, and atomization of the resultant solution in the burner of a flame spectrophotometer. Measurement of the intensity of the 766 nm ray, compared withthe intensity obtained for standard potassium chloride solutions acidified in the same way. Replaces ISO Recommendation R 2050-1971.
Дата введения:
01.03.76
Дата отмены:
30.05.02
Код КГС:
Л19
Код ОКСТУ:
2109;2147
Код ОКС(МКС):
71.060.50
Код ОКП:
2109;2147
Нормативные ссылки:
NBN T 03-221-1980, EQV*NF T20-352-1978, EQV*NP-1495-1977, EQV
Ключевые слова:
CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CHEMICALS DETERMINATION OF CONTENT EMISSION SPECTROPHOTOMETRY FLAME PHOTOMETRIC ANALYSIS FLAME PHOTOMETRY POTASSIUM POTASSIUM CHLORIDE CHEMICAL ANALYSIS AND TESTIN