About: http://webisa.webdatacommons.org/287014219

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	It tests for Nitrates, Nitrites, water hardness, alkalinity, and pH. I am curious why you ask??? :) Because most of the test kits are quite inaccurate and test strips are included in this category.
http://www.w3.org/ns/prov#wasQuotedFrom	tropicalfishkeeping.com