... .Satisfy cGMP standard, E.S., USP, China Pharmacopoeia. water treatment equipmentSummarize: Reverse Osmosis is the opposite process of the natural permeation. It is ... also related to the value------pressure difference of membranes both sides subtracts osmosis pressure difference of diluted and concentrated solution. The ... set documentations: FAT, SAT, DQ, IQ, OQ, PQ ect. water treatment equipment