About: http://webisa.webdatacommons.org/53840517

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	To empty the sample chamber, a pressurized gas, such as air, is supplied by the gas exchange device to press the fluid sample out of the sample chamber.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com