About: http://webisa.webdatacommons.org/55057241

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 reason: this scale is measuring vacuum relative to sea level and using a gauge with this scale at elevations other than sea level requires a correction.
http://www.w3.org/ns/prov#wasQuotedFrom	impco-inc.com