About: http://webisa.webdatacommons.org/38810059

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 filter for use in this step has an effective diameter of not more than 1 ??m, preferably not more than 0.3 ??m and not less than 0.05 ??m, and particularly preferably not more than 0.3 ??m and not less than 0.25 ??m.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com