The Insta-TEST^® Wide Range pH test strips are a convenient way to test water for pH. Range and sensitivity is 4, 5, 6, 7, 8, 9, 10.

This kit tests for Sulfate using the Octa-Slide 2 Comparator. Range and sensitivity is 20, 40, 60, 80, 100, 120, 160, 200 ppm SO₄^2-. Barium forms a precipitate with sulfate. The turbidity formed is measured using comparator standards or a meter.

Minute amount of color permits immediate visual distinction of different buffer values.