Johnson Comparator Paper pH 6.8-8.3

Product Description

Comparator Paper provides a quick and easy method of indicating the pH of a solution. Like Universal Indicator Paper, they use a single colour change which can be matched to the colour chart with the added advantage of being able to measure in pH intervals of 0.2 – 0.5 pH.Comparator Paper is supplied as either books, paper strips or a 5 metre reel both packed in plastic packs and dispensers which ensure they remain stable and protected.