PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • use many different adsorbates in addition to nitrogen, such as, argon, krypton, carbon monoxide, carbon dioxide and other non-corrosive gases,
http://www.w3.org/ns/prov#wasQuotedFrom
  • quantachrome.com