In 2015, a Merck brand whose name references this process merged with Sigma–Aldrich. A “sterile” form of this process can be performed (10[1])using a PES membrane fitted to a syringe. A component (10[1])of BSCs performs a highly efficient form of this process (-5[1])through (10[1])diffusion, (-5[1])interception, (10[2])impaction, and electrostatic attraction. (10[1])Diatomaceous earth (-5[2])aids this process (10[1])by forming (10[1])a “cake.” (10[2]-5[3])A Büchner (10[3]-5[1])funnel (10[3]-5[3])connected (10[2])to an (10[2]-5[1])aspirator (10[10])is used (10[1])for (10[1])the “vacuum” (10[4])form (10[5]-5[3])of (10[2])this (10[6])process. (10[19]-5[5])HEPA (10[2]-5[1])(“HEP-uh”) units (10[1])perform (-5[1])this process, (10[5]-5[2])which (10[1])can (10[1])also (10[1])be (10[1])performed (10[3])using specialized paper with uniform (10[5])pore sizes (10[1])to block (10[1])particulate matter. (10[5]-5[2])For 10 points, (10[1])name this process of separating solids (10[1])from (10[1])a fluid. (10[3])■END■ (10[18]0[4])