This method covers the determination of water and sediment in crude oils and fuel oils by means of the centrifuge. For domestic usage in the United States@ refer to ASTM methods D 96-API 2542@ Test for Water and Sediment in Crude Oils.2 NOTE 1- With some types of oils it is difficult to obtain water and sediment contents with this method. When this situation is encountered@ ASTM Method D 95-API 2560@ Test for Water in Petroleum and Other Bituminous Materials or IP 74 and ASTM Method D 473- API 2561 IP 53@ Test for Sediment in Crude and Fuel Oils by Extraction@3 may be used. 2 Annual Book of ASTM Standards@ Part 18. 3 Appears in this publication.