achieves_planned_objective separation into different composition objective material component separation isolation of cell culture supernatant OBI branch derived PlanAndPlannedProcess Branch Pouring out a portion of the fluid part of an adherant cell culture growing in a flask.; The centrifugation of a T cell culture followed by aspiration of the supernatant while the cellular pellet remains in the centrifuge tube. This does not apply to the case where the cells are lysed a protocol which results in the separation of supernatant material from a cell culture isolation of cell culture supernatant pending final vetting