Глинозем, преимущественно используемый для производства алюминия. Определение содержания цинка. Метод атомной абсорбции в пламени
Название (англ.):
Aluminium oxide primarily used for the production of aluminium; Determination of zinc content; Flame atomic absorption method
Описание (англ.):
The method is applicable to products having Zn contents equal to or greater than 0,002 % (m/m). Dissolution of a test portion by hydrochloric acid under pressure. Aspiration of the solution into an acetylene-air flame and photometric measurement of the absorption of the 213,7 nm line emitted by a hollow-cathode zinc lamp. The dissolution of the sample can also be carried out by an alkaline fusion. This method is given in the annex. Replaces ISO Recommendation R 2071-1971.
Дата введения:
01.09.76
Код КГС:
А39
Код ОКСТУ:
1711;1709
Код ОКС(МКС):
71.100.10
Код ОКП:
1711;1709
Нормативные ссылки:
BS 4140 PART 16-1986, EQV*NBN T 03-415-1983, EQV*NF T20-212-1973, EQV
Ключевые слова:
ALUMINIUM ALUMINIUM OXIDE ATOMIC ABSORPTION METHOD ATOMIC ABSORPTION SPECTROPHOTOMETRY CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING DETERMINATION OF CONTENT PRODUCTION ZINC ATOMIC ABSO CHEMICAL ANALYSIS AND TESTIN