PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Federal and state regulations on dumping of low PH materials are becoming increasingly strict, thus this low PH material generated from the pickling process normally requires neutralization before placing in a landfill, deep welling or other disposal site.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es