ASTM D473 – Standard Test Method for Sediment in Crude Oils and Fuel Oils by the Extraction Method
Description:
Significance and Use
5.1 A knowledge of the sediment content of crude oils and fuel oils is important both to the operation of refining and the buying or selling of these commodities.
Scope
1.1 This test method covers the determination of sediment in crude oils and fuel oils by extraction with toluene. The precision applies to a range of sediment levels from 0.01 % to 0.40 % mass, although higher levels may be determined.
Note 1: Precision on recycled oils and crankcase oils is unknown and additional testing is required to determine that precision.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
ASTM D4728