Руды железные. Определение содержания магния. Спектрометрический метод атомной абсорбции в пламени
Название (англ.):
Iron ores; determination of magnesium content; flame atomic absorption spectrometric method
Описание (англ.):
The method is based on decomposition of the test portion by hydrochloric acid/nitric acid, evaporation, ignition of the residue and removal of silica, fusion with sodium carbonate and dissolution of the cooled melt in the filtrate, aspiration of the solution into the flame of an atomic absorption spectrometer, and comparison of the absorbance values obtained for magnesium with those obtained from the calibration solutions.Applies to magnesium contents between 0,01 % and 3,0 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products.
Заменяет стандарты:
ISO 4692(1980.06)
Дата регистрации:
01.01.93
Дата введения:
01.12.92
Код КГС:
А39
Код ОКСТУ:
0710
Код ОКС(МКС):
73.060.10
Код ОКП:
0710
Нормативные ссылки:
BS 7020 PART 18(1993/BSI), EQV ISO 648-1977*ISO 1042-1983*ISO 3081-1986*ISO 3082-1987*ISO 3083-1986*ISO 7764-1985
Ключевые слова:
ATOMIC ABSORPTION SPECTROPHOTOMETRY CHEMICAL ANALYSIS AND TESTING DETERMINATION OF CONTENT FLAME SPECTROSCOPY IRON ORES MAGNESIUM CONTENTS ATOMIC ABSO CHEMICAL ANALYSIS AND TESTIN