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 Meters - Digital
Easy to operate, rugged, portable and compact
pH Meters - Digital Pocket
Provides a practical alternative to pH Litmus paper
pH/Ion Meter - Digital Lab Model
Designed to measure the entire pH scale (0-14)
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Related Information

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