In this book a unique protocol for selecting, evaluating, characterizing, and modifying potential Solvent Resistant Polymeric Nanofiltration (SRNF) membranes for organic solvent separation as well as elucidating some of the underlying principles are presented. Organic solvent separation systems are encountered in industries including the petroleum, petrochemicals, pharmaceutical, biotechnology and fine chemicals where polymeric membranes and if not selected or modified properly may result in very low performances as results of possible excessive swelling and compaction. Ultrasonic Time Domain...