pH indicator paper 1-14, set 80 strips

Indicator strips for measuring the pH value of a cosmetic solution or composition.

The pH value expresses the acidity or basicity of a cosmetic solution or composition which also contains water. pH is a parameter that can be determined using an indicator containing a substance that causes a change in color depending on the pH value.

The set contains a colorimetric scale of comparison 1-14 pH, with the resolution of the determination of 1 pH unit.