CEN EN 15979 Testing of ceramic raw and basic materials - Direct determination of mass fractions of impurities in powders and granules of silicon carbide by OES by DC arc excitation
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European Committee for Standardization
Testing of ceramic raw and basic materials - Direct determination of mass fractions of impurities in powders and granules of silicon carbide by OES by DC arc excitation
N EN 15979
Annotation
This European Standard describes the method for the analysis of mass fractions of the impurities Al, B, Ca, Cr, Cu, Fe, Mg, Ni, Ti, V and Zr in powder- and grain-shaped silicon carbide of ceramic raw and basic materials. This application can also be extended to other metallic elements and other similar non-metallic powder- and grain-shaped materials such as carbides, nitrides, graphite, carbon blacks, cokes, carbon, as well as a number of further oxidic raw and basic materials after appropriate testing.
NOTE There are positive interferences for materials such as e.g. graphite, B4C, BN, WC and several refractory metal oxides.
This testing procedure is applicable to mass fractions of the impurities mentioned above from approximately 1 mg/kg up to approximately 3 000 mg/kg, after verification. In some cases it may be possible to extend the range up to 5 000 mg/kg depending on element, wavelength, arc parameter, and sample weight.
Автоматический перевод:
Тестирование керамического сырья и основных материалов - Прямое определение массовых фракций примесей в порошках и гранулах карбида кремния OES возбуждением дуги DC
Этот европейский стандарт описывает метод для анализа массовых фракций примесей Эл, B, Калифорния, Cr, меди, Fe, Mg, Ni, Ti, V и Циркония в порошке - и карбид кремния формы зерна керамического сырья и основных материалов. Это применение может также быть расширено на другие металлические элементы и другой подобный неметаллический порошок - и материалы формы зерна, такие как карбиды, азотирует, графит, углеродные сажи, коксы, углерод, а также много дальнейшего оксидного сырья и основных материалов после надлежащего тестирования.



