About: http://webisa.webdatacommons.org/81012035

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	To maintain the quality of mineral insulating oils as long as possible, chemicals such as oxidation or corrosion inhibitors need to be added to them to improve some of their properties.
http://www.w3.org/ns/prov#wasQuotedFrom	iec.ch