Litmus papers are the simplest and easiest way to measure pH values where no precise pH value is required. They are useful for determining whether a solution is acidic or basic.
The red litmus paper has a pH measurement range of 5.0 pH to 8,0 pH. The color changes from red to blue
Packed as a booklet of 20 papers. 10 booklets are packed in a polystyrene box for easy dispensing.
