About: http://webisa.webdatacommons.org/228251222

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	Inert gases such as argon, helium and nitrogen may be used and successful test welds have been made with a 95% argon and 5% hydrogen atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com