About: http://webisa.webdatacommons.org/219481789

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	A conventional particle standard is a sample including particles of a predetermined particle dimension, within narrow predetermined limits, dispersed in a carrier at a predetermined particle concentration.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com