About: http://webisa.webdatacommons.org/151093531

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 test kit or other device that measures the ppm concentration of the solution must be used at least once each business day.
http://www.w3.org/ns/prov#wasQuotedFrom	mtrules.org