Whatman® Panpeha™ pH Indicator Strips, model 10360005 is manufactured by Cytiva. This product is used for pH measurement. When in contact with the sample solution, they show a specific color. The pH can be determined by checking the color comparison table provided. PH values from 0 to 14 were measured in 24 scales. The sensitivity of 0.5 pH unit is in the range of 0 to 9; 1 pH unit is between 9 and 14. Color reference table of 200 strips per box.