PEHANON®: pH measurement in colored solutions. Features: PEHANON® is a special pH-test strips that unifies the pH-indicator and the reference colors on one strip and has the following advantages: • Any sample color has the same effect on both, the reference colors and the reactive pad. This ensures unadulterated readings in colored solutions. • The user can be sure to get accurate pH-values. An invisible hydrophobic barrier just above the top color field prevents capillary action of the test solution beyond: • The handle will remain dry and clean whatever the sample is. Therefore the use of the strip is very safe. pH-values can be determined without a separate color chart: • Workers and machinists can use single strips instead of complete packs with color chart which makes PEHANON® highly economic. Delivery Contents: • a pack of 200 strips 11x100 mm • minimum purchase: 2 packs