IP 500: Determination of the phosphorus content of residual fuels by ultra-violet spectrometry

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  • Method adopted/last revised: 2003
  • Method reapproved: None
  • REF/ISBN: IP500-2934869
  • Status: Current
  • First printed in STM books: January 2003

Scope

This standard specifies a method for the determination of the phosphorus content of residual fuel oils by ashing, fusion and reaction to form molybdenum blue, the intensity of which is measured by ultra-violet spectrometry. It is applicable to phosphorus contents in the range 0,2 mg/kg to 40 mg/kg, and in combination with other analyses, may give an indication of the presence of ash-containing lubricating oil in the fuel.

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