BS&W 2 (or BS and W) : Bottomsettlings and water. Comprises the solids and aqueous solutions which may be present in an oil, and which are separable therefrom by means of gravity or the centrifuge. (Inst. Pet. defn)
H. J. Porter (Chairman - Technical Committee), Dictionary of Fire Technology, The Institution of Fire Engineers, The Victory Press (Leicester) Ltd. 1979 UK. (Fr Tech - Brit) {81}