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Paper pH Test Pen



Lithco Paper pH Test Pen

Lithco Paper pH Test Pen

Quickly indicates whether paper is acidic or alkaline Key Benefits Turns yellow for acid, violet for alkaline Aids in balancing fountain solution to...

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Hurst #1167 pH Test Pens

Hurst #1167 pH Test Pens

A fast and economical way to determine the pH value of the surface of papers. Has a scale range of pH from 1.0 to 12. Case price shown, is a...

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