标准编号：ISO 4443:2022
中文名称：主要用于铝生产的冰晶石 元素的测定 使用压片的波长色散X射线荧光光谱测定法
英文名称：Cryolite primarily used for the production of aluminium — Determination of elements — Wavelength-dispersive X-ray fluorescence spectrometric method using pressed powder tablets
发布日期：2022-01
标准范围
This document specifies a wavelength-dispersive X-ray fluorescence spectrometric (XRF) method for the determination of cryolite (Na AlF ) from the content of fluorine to the content of trace elements. 3 6 The calibration reference materials are not specified in this method.
The method is applicable to cryolite, which is primarily used for the production of aluminium. Annex A provides conversion factors for converting elements to compounds. The validity and precision of test results for concentrations outside these ranges has not been determined.
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