About: http://webisa.webdatacommons.org/92542022

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	measurements that the silver, mercury or other cation is actually present
http://www.w3.org/ns/prov#wasQuotedFrom	archive.org