Norm

ISO 4283:1993 en

All grades of fluorspar - Determination of carbonate content - Titrimetric method

  • Deze norm is ingetrokken sinds 19-05-2020

31,57

Over deze norm

Status Ingetrokken
Aantal pagina's 5
Gepubliceerd op 21-01-1993
Taal Engels
The principle of the method specified is treatment of a test portion with hydrochloric acid solution, absorption of the evolved carbon dioxide in barium hydroxide solution, neutralization of excess alkali with hydrochloric acid solution, addition of an exactly measured excess of a standard volumetric hydrochloric acid solution to dissolve the precipitated barium carbonate and back-titration with a standard volumetric sodium hydroxide solution using methyl orange as indicator. The method is applicable to products having carbonate contents equal to or greater than 0,04 % (m/m).

Details

ICS-code 73.080
Nederlandse titel All grades of fluorspar - Determination of carbonate content - Titrimetric method
Engelse titel All grades of fluorspar - Determination of carbonate content - Titrimetric method

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