Norm

ISO 5439:1978 en

Acid-grade fluorspar - Determination of available fluorine content - Potentiometric method after distillation

  • Deze norm is ingetrokken sinds 19-05-2010

31,57

Over deze norm

Status Ingetrokken
Aantal pagina's 6
Gepubliceerd op 01-09-1978
Taal Engels
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 %.

Details

ICS-code 73.080
Nederlandse titel Acid-grade fluorspar - Determination of available fluorine content - Potentiometric method after distillation
Engelse titel Acid-grade fluorspar - Determination of available fluorine content - Potentiometric method after distillation

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