About: http://webisa.webdatacommons.org/35168328

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	They can be quantitatively measured for ammonia or hydrogen cyanide exposure or other materials by measuring the transmission when they are returned to the laboratory without any additional treatment.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com