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The term "pH" denotes the negative logarithm of the hydrogen ion, H+, activity in aqueous solutions: pH = -log (H+) Field measurement of drilling fluid or filtrate pH and adjustments to the pH are fundamental to drilling fluid control. Clay interactions, solubility of various components and contaminants, and effectiveness of additives are all dependent on pH.

pH Testing

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Summary Summary pH Measurement
Summary Summary Pocket pH Meter
The Pocket pH Meter provides a practical alternative to pH Litmus paper.
Summary Summary Digital pH/Ion Meter Lab Model
Summary Summary PH METER DIGITAL LAB MODEL 115-230VAC - 209994 - Included Parts
Summary Summary pH/Ion Meter - Digital Lab Model
Designed to measure the entire pH scale (0-14)
Summary Summary pH Meters - Digital
Easy to operate, rugged, portable and compact
Summary Summary pH Meters - Digital Pocket
Provides a practical alternative to pH Litmus paper
Summary Summary pH Testing
pH Testing
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