"pH Tests"

Use this test paper to detect the presence of water or to perform qualitative tests of relative humidity. Size of each sheet: 20×25 cm. Package of 12.

Use this paper to cover both the A range (2-4-6-8-10) and the B range (1-3-5-7-9-11) of the pH scale.

The Ultimate in Wide Range, General Purpose pH Papers.

Test the pH scale from 0-11 in 1.0 units and from 12-14 in 0.5 units.

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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.

Covers Full pH Range.

See Dramatic Color Changes

Includes Color Comparison Chart.

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