test method for chromite sand
1. Appearance: visual inspection.
2. The determination of chromium trioxide (Cr, O,), silicon dioxide (SiO,) and calcium oxide (CaO) is carried out according to YB879.
3. The determination of loss on ignition is carried out according to YB778.
4. The measurement of refractoriness shall be carried out according to YB 368.
5. The determination of particle size composition and water content shall be carried out according to GB 2684.
6. The test sieve is selected according to the regulations of ZB J31 004.
