About: http://webisa.webdatacommons.org/235021338

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	By-product partial pressures (concentrations) may be measured by mass spectrometry or other such measuring means.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com