pH indicator papers offer a simple and inexpensive means for the assessment or measurement of pH in aqueous solutions. A wide range of different papers is available for various medical, commercial and industrial applications. The following products are manufactured by Macherey-Nagel, one of the world's leading producers of test papers.

Standard Indicator Papers without Colour Chart
Universal and Special Indicator Papers
Duotest Indicator Papers
pH-Fix Indicator Strips
Pehanon for Coloured Solutions

