This standard applies to the determination of sulfide content in fluorspar. Measuring range: ≥0.001%. This standard does not apply to the determination of sulfide content in polysulfide-containing fluorspar.
GB/T 5195.4-1985 history
2006GB/T 5195.4-2006 Fluorspar. Determination of sulfide content. Iodometric method
1985GB/T 5195.4-1985 Methods for chemical analysis of fluor-spar--The iodometric method for the determination of sulphide content