... 98% OEM is accepted with special specs . Usage:Polyanionic Cellulose (PAC) -HV is for water-based drilling fluids, which can effectively ... properties in a wide variety of fluid environment.Polyanionic Cellulose (PAC) -LV is for use in solids-laden, water-based ... Salt Water≥65Fluid Loss≤10mlPAC LV 95% ParameterQuality Index ResultPurity, % PAC ≥9595.5Degree of substitution ≥0.91.0Moisture, % ≤87.5Fresh ...