Norm

ISO 5437:1992 en

Acid-grade and ceramic-grade fluorspar - Determination of barium sulfate content - Gravimetric method

  • Deze norm is ingetrokken sinds 19-05-2010

31,57

Over deze norm

Status Ingetrokken
Aantal pagina's 3
Gepubliceerd op 03-12-1992
Taal Engels
The method is based on evaporation to dryness of a test portion in the presence of hydrofluoric acid and concentrated sulfuric acid, extraction of the soluble salts from the mixture, filtration, drying and weighing of the residual barium sulfate. Applies to products having barium sulfate contents equal to or greater than 0,1 % (m/m).

Details

ICS-code 73.080
Nederlandse titel Acid-grade and ceramic-grade fluorspar - Determination of barium sulfate content - Gravimetric method
Engelse titel Acid-grade and ceramic-grade fluorspar - Determination of barium sulfate content - Gravimetric method

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