IP 223: Determination of ash of petroleum products containing mineral matter

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  • Method adopted/last revised: 1968
  • Method reapproved: 2004
  • REF/ISBN: IP223-2934869
  • Status: Current
  • First printed in STM books: January 1968
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Scope

This method determines the ash in natural and lake asphalt, in mixtures of these asphalts with other petroleum products, or in petroleum bitumens, provided the mineral matter is finely divided and does not exceed 40 per cent by mass.

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