本试验方法描述了通过离心程序在实验室测定原油中的水和沉积物。这种离心法测定原油中的水和沉积物并不完全令人满意。检测到的水量几乎总是低于实际含水量。当需要高度准确的数值时，应使用蒸馏水试验方法D4006（APIMPMSC第10.2章）（注1）和提取沉淀物试验方法D473（APIMPMS第10.1章）的修订程序。

This test method describes the laboratory determination of water and sediment in crude oils by means of the centrifuge procedure. This centrifuge method for determining water and sediment in crude oils is not entirely satisfactory. The amount of water detected is almost always lower than the actual water content.When a highly accurate value is required, the revised procedures for water by distillation, Test Method D4006 (APIMPMSChapter 10.2) (Note 1), and sediment by extraction, Test Method D473 (APIMPMSChapter 10.1), shall be used.