PH paper is imp0regnado an indicator or a mixture of indicators and to contact the test solution adopts a certain color depending on the pH of the solution.
The use of pH paper is therefore an economical, simple and very useful in those routine analysis or field that requires the determination of pH of aqueous solutions in seconds.
All models are supplied in strip format (10×70 mm) in boxes of 200 units each.
The test paper is the easiest way to paper and it is used when you need an approximate determination of pH. It has no color scale, the measurement of pH is indicated by the color change of the paper.