Specification and properties of CMC carboxymethly Cellulose Technical Specification of CMC carboxymethly Cellulose for oil drilling liquids according to API Regarding oil drilling fluids, Specification of CMC (carboxymethyl cellulose) technical requirements are absolutely important for guaranteeing best performance. Each grade of CMC—HV (High Viscosity), LV (Low Viscosity), and MV (Medium Viscosity)—fits a different need. API criteria state that […]