BS&W 9
BS&W 9 : This term refers to basic sediment and water and is commonly used as a measure of treating performance. Treating performance is highly variable, but most crude oils are treated to a range of 0.2 to 3.0 percent BS&W. ASTM Standard Test No. D96-82 entitled Water and Sediment in Crude Oils is an accepted standard for this test. (Spec 12L)