About: http://webisa.webdatacommons.org/41600822

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	Ensure that the blast furnace slag consists of tough, durable, angular fragments that are uniform in density, absorption, and quality, and are free from flux stone, dirt, or other objectionable material.
http://www.w3.org/ns/prov#wasQuotedFrom	state.nj.us