Abstract 

Specifies a potentiometric method using a fluoride-ion sensitive electrode. After destillation of fluorine from the test portion in the presence of perchloric acid the distillate shall be titrated with lanthane nitrate solution. Applicable to products having a calcium fluoride content greater than 90 %.


General information

  • Status :  Withdrawn
    Publication date : 1978-09
  • Edition : 1
    Number of pages : 6
  • :
    ISO/TC 175
    Fluorspar
  • 73.080
    Non-metalliferous minerals

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