About: http://webisa.webdatacommons.org/344514737

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	Below the reaction zone (15) and adjacent to the second end (13) is an inert porous barrier material (16) which may be a material such as a porous polyethylene frit, glass wool, nylon fabric, sponge or styrofoam.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com