| http://www.w3.org/ns/prov#value | - V??xa???s pH test strips are individual strips, rather than a roll, eliminating wasted litmus paper and making it easy to test your pH. Also, every box of our litmus paper / pH test strips come with two color matched, pH scale charts so you can easily, and accurately determine your body pH. V??xa???s Litmus Paper / pH test strips accurately test from 5.0 to 9.0.
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