About: http://webisa.webdatacommons.org/76339461

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	In such applications, it is critical that the gases be essentially completely free of impurities such as water and oxygen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com