The Hydrion Wide Range Lo Ion pH Test Kit is intended to test weakly buffered solutions and will give accurate pH readings at each full pH unit from pH 1.0-11.0. Estimates can be made to 0.5 ph units.
The color chart has pH matches at [1.0][2.0][3.0][4.0][5.0][6.0][7.0][8.0][9.0][10.0][11.0]
Each kit contains a 15-foot roll of test paper, matching color chart and one(1) capped 4 ml. sample tube, packed in a polypropylene protective case.