About: http://webisa.webdatacommons.org/104209278

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	However, it is used by controlling the mean particle diameter to generally 50 ??m or smaller preferably 30 ??m or smaller, particularly preferably 5 ??m or smaller.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com