Acid-grade and ceramic-grade fluorspar; determination of manganese content; periodate spectrometric method
Описание (англ.):
Applicable to products having Mn-contents in the range 0,006 % to 0,4 %. Decomposition of the test portion with nitric and perchloric acids. After dilution follows oxidation of manganese to permanganate with sodium metaperiodate. Spectrometric measurement at 545 nm.
Заменён стандартами:
ISO 9062(1992.12)
Дата введения:
15.03.89
Дата отмены:
01.12.92
Нормативные ссылки:
ISO 4282-1977*ISO 565-1983
Ключевые слова:
CERAMICS CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING DETERMINATION OF CONTENT FLUORSPAR MANGANESE MINERALS MINERALS AND ORES SPECTROPHOTOMETRIC ANALYSIS SPECTROPHOTOMETRY CHEMICAL ANALYSIS AND TESTIN