<http://webisa.webdatacommons.org/190149201>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/256652483>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/190149201> .
<http://webisa.webdatacommons.org/190149201>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ecfr.gov> .
<http://webisa.webdatacommons.org/prov/304192667>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/190149201> .
<http://webisa.webdatacommons.org/190149201>	<http://www.w3.org/ns/prov#value>	"Methods such as heat tracing and insulation are permitted if they do not result in an increased risk of polymerization;(2) Be designed so that polymerization can be detected." .