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Crude petroleum and fuel oils. Determination of sediment. Extraction method
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 0,1 % (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.
Identical with IP 53/2000.
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