This standard specifies a method for the determination of calcium content in iron ores, iron concentrates, sinters and pellets using flame atomic absorption spectroscopy (AAS), with a determination range of 0.030% to 1.50%. Absorbance was determined at a wavelength of 422.7 nm after the samples were analyzed with muriatic acid and nitric acid, and the residue was treated with hydrofluoric acid and combined with the main liquid. The standard provides a reliable method for the quantitative analysis of calcium content in iron ores.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | D31 | ICS | 73.060.10 |
| Release Date | 2017-10-14 00:00:00 | Implementation Date | 2018-09-01 00:00:00 |
