Preparation and Ascertainment of Ingredient Contents of Uranium Ore Sandstone Standard Substance

The preparation of uranium ore gritstone standard substance have been introduced and the contents of U, Th, Ra, K2O, SiO2, Fe, A12O3, CaO, MnO, TiO2, Na2O, P2O5, MoO3, V ,S and C in it have been determined in this paper. The uranium ore sandstone standard substance was authorized as the first national grade standard substance.