IP 555: Ethanol as a blending component for petrol - Determination of phosphorus content - Ammonium molybdate spectrometric method

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  • Method adopted/last revised: 2008
  • Method reapproved: None
  • REF/ISBN: IP555-2936450
  • Status: Current
  • First printed in STM books: January 2008


This standard specifies a procedure for the determination of phosphorus content measured as orthophosphate, in ethanol from 0,15 mg/l to 1,50 mg/l by ammonium molybdate spectrometric method. The phosphorus content is determined in aqueous solution after dissolution of the evaporation residue of the ethanol sample.

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