|
| Название (рус.): | Борат натрия неочищенный технический. Определение содержания общего и щелочерастворимого кальция и магния. Спектрометрический метод атомной абсорбции в пламени |
| Название (англ.): | Crude sodium borates for industrial use; Determination of total and alkali-soluble calcium and magnesium contents; Flame atomic absorption spectrometric method |
| Описание (англ.): | A test solution is prepared by one of the two following ways: a) fusion of a test portion with sodium carbonate in the case of total calcium and magnesium contents, and b) from an aliquot portion of 'solution A' (ISO 2217) for alkali-soluble calcium and magnesium contents. Lanthanum ions are added to the solution to suppress certain interferences. The solution is aspirated into an acetylene/dinitrogenmonoxide flame and the measurement are carried out at a wavelength of 422.7 nm (calcium line) and of 285.2 nm (magnesium line). |
| Дата регистрации: | 01.01.85 |
| Дата введения: | 01.11.84 |
| Дата отмены: | 30.05.02 |
| Код КГС: | Л19 |
| Код ОКСТУ: | 2146;2109 |
| Код ОКС(МКС): | 71.060.50 |
| Код ОКП: | 2146;2109 |
| Нормативные ссылки: | BS 5688 PART 28-1986, EQV*NF T20-564-1985, EQV*NBN T 03-368(1988/IBN), EQV |
| Ключевые слова: | ATOMIC ABSORPTION METHOD ATOMIC ABSORPTION SPECTROPHOTOMETRY BORATES CALCIUM CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING DETERMINATION OF CONTENT INDUSTRIAL PRODUCTS MAGNESIUM SODIUM SODIUM BORATES ATOMIC ABSO CHEMICAL ANALYSIS AND TESTIN |
|