Take accurate alkaline/acid
tests with this pack of 80 Litmus paper strips which come in 5
individually sealed books. Each book also includes a colour chart. The scale reads from 1 to 14: 1 - 3 indicates a very acidic substance 4 - 6 indicates an acidic substance 7 indicates neutral 8 - 11 indicates alkalinity 12 - 14 indicates a very high level of alkalinity Make sure your water is safe before using:
Litmus paper is invaluable for testing the acid and alkaline levels in
all kinds of applications from spas, ponds and aquariums to conducting
scientific experiments. Package included:
3 book containing 240 strips(Colour charts included)