About: http://webisa.webdatacommons.org/145233718

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	???Resistant barrier layer??? means a layer that prevents the passage of a hazardous substance such as a chemical agent or a biological pathogen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com