Hydrion Test Paper Strips

Use Hydrion A to test in the range of 2-4-6-8-10 and Hydrion B for the range of 1-3-5-7-9-11. Both strips let you test the pH scale in 2.0 units.
Includes: color chart.

Hydrion 1-12 pH Paper is a general use pH paper that can be used for: 
Classroom demonstrations, and general laboratories.