About: http://webisa.webdatacommons.org/52301635

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 surface roughness (Rz) of the ion-exchange membrane is preferably 5 ??m or less, more preferably 3 ??m or less, particularly preferably 1 ??m or less.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com