The color chart has pH matches at [6.5][7.0][7.5][8.0][8.5][9.0][9.5][10.0][10.5][11.0][11.5][12.0][12.5][13.0]

Each vial contains 100 strips. Minimum order of 3 vials. Also sold in cartons of 6 vials.

Dip the strip into the test solution, then instantly compare the resulting color with the matching pH color chart.