Norm

ISO 9504:1993 en

Metallurgical-grade fluorspar - Determination of antimony content - Solvent extraction atomic absorption spectrometric method

  • Deze norm is ingetrokken sinds 19-05-2010

48,19

Over deze norm

Status Ingetrokken
Aantal pagina's 7
Gepubliceerd op 01-04-1993
Taal Engels
The principle of the method specified is to decompose a test portion by a mixture of nitric, hydrofluoric and perchloric acids, dissolving the salts in hydrochloric acid after evaporation to fumes of sulfuric acid, extracting the antimony from a dilute hydrochloric acid solution of the decomposed test portion into a solution of tri-n-octylphosphine oxide in 4-methyl-2-pentanone, aspirating the extract into the air/acetylene flame of an atomic absorption spectrometer, and measuring the absorbance at 217,6 nm. Applies to products having an antimony content equal to or greater than 0,001 % (m/m).

Details

ICS-code 73.080
Nederlandse titel Metallurgical-grade fluorspar - Determination of antimony content - Solvent extraction atomic absorption spectrometric method
Engelse titel Metallurgical-grade fluorspar - Determination of antimony content - Solvent extraction atomic absorption spectrometric method

Winkelwagen

Subtotaal:

Ga naar winkelwagen