About: http://webisa.webdatacommons.org/17481986

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A porous or permeable membrane is a membrane that has an air permeability of at least about 0.03 cm/sec (0.05 ft/min) at a pressure drop of about
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com