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:1 book containing 80 strips(Colour charts included)

Welcome to our store!Enjoy your shopping time!Best wishes to you!

 

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