PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Once known as The American Society for Testing and Materials, now formally known as ASTM International, the organization is a large and respected international standards-setting institution that sets and maintains standards and test methods for many types of materials and equipment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • helmets.org