pH 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11

Each book has 20 strips

Universal Indicator paper is one of the most popular pH test papers. They provide a quick and accurate method of indicating the pH of a solution.

Each book has 20 strips and provides over 12.5m of test paper with its own printed colour chart in steps of 1 pH on the inside cover making it more economical, practical and use.