... OEM is accepted with special specs . Usage:Polyanionic Cellulose (PAC) -HV is for water-based drilling fluids, which can effectively ... Salt Water≥65Fluid Loss≤10mlPAC LV 95% ParameterQuality Index ResultPurity, % PAC ≥9595.5Degree of substitution ≥0.91.0Moisture, % ≤87.5Fresh ... Point (YP)≥6567Fluid Loss(ml) ≤87.6 PAC LV / HV 98% Specs CMC -- Cellulose , PAC -- CMC HV , CMC LV , PAC LV , PAC HV , PAC R