About: http://webisa.webdatacommons.org/38669768

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 thermal pack may then be further enclosed in a device which is impermeable to air, in order to avoid exposure of the compositions to air or other source of oxygen until the article or composition is intended for use.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk