IP 53: Crude petroleum and fuel oils - Determination of sediment - Extraction method

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  • Method adopted/last revised: 2000
  • Method reapproved: 2014
  • REF/ISBN: IP053-2936900
  • Status: Current
  • First printed in STM books: April 2000


This International Standard specifies a method for the determination of sediment in crude petroleum and fuel oils by extraction with toluene. The precision applies to a range of sediment levels from 0,01 % (m/m) to 0,40 % (m/m), although higher levels may be determined.

NOTE 1 If this International Standard is applied to crude petroleum samples containing significant amounts of salts, an overestimation of the sediment content may be obtained because a proportion of the inorganic salts may be trapped in the extraction thimble. This problem is generally not significant for crude petroleum samples containing less than 0,l % (m/m) total salts.

NOTE 2 For the purposes of this International Standard, the terms "% (m/m)" and "% (V/V)" are used to represent the mass and volume fractions of materials, respectively.

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