IP 224: Determination of low lead content of light petroleum distillates by dithizone extraction and colorimetric determination

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  • Method adopted/last revised: 2002
  • Method reapproved: 2014
  • REF/ISBN: IP224-2936900
  • Status: Current
  • First printed in STM books: April 2002


This standard specifies a procedure for the determination of trace quantities of lead in light petroleum distillates at levels of between 0,003 mg/l and 25 mg/l by extraction with dithizone and determination of the lead content by calorimetric analysis of the lead dithizonate.

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