About: http://webisa.webdatacommons.org/246568506

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 present invention is a method and apparatus for determining the concentration or level of nitrite in a closed water cooling system and controlling that nitrite level in accordance with a predetermined set point.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr