IS 2411-1963

标准号：IS 2411-1963
发布日期：1963/8/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This standard prescribes the methods for determination of calcium fluoride, calcium carbonate, silica, mixed oxides, barium, lead, zinc and sulphur in fluorspar of metallurgical and acid grades within the following ranges:Metallurgical Acid Grade GradePercent PercentCalcium fluoride Above 85 Above 97Calcium as calcium carbonate 6 to 10 1 to 2Silica Up to 5 Up to 1Mixed oxides (Fe2O3, A12O3, etc) 1 to 2 0.1 to 0.5Barium as sulphate Up to 0.2 —Lead as sulphide Up to 0.5 —Zinc as sulphide Up to 0.5 —Sulphur Up to 0.3 —