About: http://webisa.webdatacommons.org/321115328

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	NFPA 50 is for a bulk oxygen system which is defined as an assembly of equipment, including cylinders, pressure regulators, safety devices, vaporizers, manifold, and interconnecting piping.
http://www.w3.org/ns/prov#wasQuotedFrom	keyeslifesafety.com