About: http://webisa.webdatacommons.org/28515775

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	Dry ordinary air is available, but nitrogen is the most common choice since it has even less water than dry air and can be had for a similar price.
http://www.w3.org/ns/prov#wasQuotedFrom	physicscentral.com