The GB/T 1881-1995 standard specifies a method for the determination of strontium oxidation content in phosphate rock and phosphate concentrate products by flame atomic absorption spectroscopy (AAS). The standard applies to phosphate rock and phosphate concentrate ore with an oxidation strontium content greater than 0.05%. After the sample is analyzed by hydrofluoric acid and perchloric acid, manganese salts and potassium salts are added to eliminate interference, and the measurement of Absorbance on Flame Atomic Absorption Spectrometer (FAAS) through acetylene-air flame is finally determined. This method provides technical support for accurately assessing the oxidation strontium content in phosphate rock and phosphate concentrate products.
| Status | Active | ||
|---|---|---|---|
| CCS | D51 | ICS | 73.080 |
| Release Date | 1995-12-20 00:00:00 | Implementation Date | 1996-08-01 00:00:00 |
