ASTM E342-11 (R2016) PDF Download

By using permanganate titrimetry, the ASTM E342-11 (R2016) standard test method can be utilized to determine the amount of chromium oxide present in chrome ores. This test method's goal is to make sure that the chromium oxide content of chromium-bearing ores complies with compositional criteria. It is assumed that those who apply this method are skilled analysts who are familiar with standard safety precautions and laboratory practices. Additionally, it is anticipated that the testing will be carried out in a facility that is adequately furnished and that correct waste disposal protocols would be followed. Additionally, quality control procedures should be used, as stated in Guide E882.

The measurement of chromium oxide (Cr2O3) in chrome ores with compositions ranging from 25% to 60% is specifically covered by this test method. In this instance, "%" refers to the mass fraction (g/100g) or weight-weight percentage (%WW).