"WardsSci000549"

Covers Full pH Range.

Ideal for classroom use, this general purpose pH paper provides a distinct color match for each pH unit from 1 to 14.

The Ultimate in Wide Range, General Purpose pH Papers.

Includes Color Comparison Chart.

See Dramatic Color Changes

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.