About: http://webisa.webdatacommons.org/224091735

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	The top membrane should be permeable to gases such as oxygen and carbon dioxide, and have a thickness of from about 0.5 mils to about 20 mils, preferably about 6 mils.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com