About: http://webisa.webdatacommons.org/307754698

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 valve of a fuel gas cylinder shall not be cracked where the gas would reach welding work, sparks, flame or other possible sources of ignition.(b) The cylinder valve shall always be opened slowly to prevent damage to the regulator.
http://www.w3.org/ns/prov#wasQuotedFrom	wa.gov