About: http://webisa.webdatacommons.org/224970332

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	Thus visual standards can be set showing the appearance, e.g., color, fluorescence or other variable, of a standard sample containing the upper limit of concentration.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com