GB/T 4333.8-2022 《Ferrosilicon—Determination of calcium content—Flame atomic absorption spectrometry》 Related products

This standard specifies a test method for the determination of calcium content in ferrosilicon by flame atomic absorption spectroscopy (AAS), applicable to the determination of calcium content in the range of 0.050% to 2.50%. After the sample has been analyzed with nitric acid, hydrofluoric acid and muriatic acid, the strontium salt is used as the Releasing agent in the muriatic acid medium, and the calcium content is calculated by the measurement of Absorbance at a wavelength of 422.7 nm. The standard provides scientific analytical methods and operating specifications for the determination of calcium content in ferrosilicon products.