... ) Standard:GB9688-88 Y type filter,stainless steel strainer,y type strainer Y type filter,stainless steel strainer,y type strainerFilter container material:SUS304 ... Milipore Pall of America,accords with the safety requirement by American pharmacopoeia 22 edition,also comply with China GB9688-88 standard ... ,fluid infusion,purifying water,sterlizing and clearing for bioengineering Y type filter