ISO 6678:1981
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ISO 6678:1981
13106

Abstract 

The lead is extracted from a diluted test portion into a solution of diethylammonium diethyldithiocarbamate in xylene. The xylene extract is separated and aspirated into the acetylene/air flame of an atomic absorption spectrometer. The spectrometric measurements are carried out at a wavelength of about 217 nm or, alternatively, about 283 nm. The method is applicable to phosphoric acids having lead contents greater than 0.1 mg/kg.


General information 

  •  :  Withdrawn
     : 1981-10
  •  : 1
     : 2
  •  : ISO/TC 47 Chemistry
  •  :
    71.060.30 Acids

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