About: http://webisa.webdatacommons.org/150093928

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	A lower sample is a sample taken from the middle of the lower 1/3 of the tank s content (a distance of 5/6 of the liquid depth below the liquid s surface) (refer to ASTM D4057)
http://www.w3.org/ns/prov#wasQuotedFrom	bst-tsb.gc.ca