Positive Displacement Roots flowmeter is a highly accurate metrological instrument to continuously or instantaneously measure. Flowmeter, oil counter, oil flowmeter The Positive Displacement Flow ... , corn sweetners, dextrose, fructose, sucrose, maltose, lactose, corn oil, soy bean oil, cotton seed oil, coconut oil, . -treated waters (deionized, demineralized, and potable); -chlorinated solvents ...