pH meter, electric device used to measure hydrogen-ion activity (acidity or alkalinity) in solution. Fundamentally, a pH meter consists of a voltmeter attached to a pH-responsive electrode and a reference (unvarying) electrode. The pH-responsive electrode is usually glass, and the reference is usually a silver–silver chloride electrode, although a mercury–mercurous chloride (calomel) electrode is sometimes used.

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PH Meter - Test Record11

National Science Foundation


Product Category/ Test Name (Matrix):

Liquid Nitrogen

Sub Category:

Liquid Nitrogen

Keywords:

Acidity, PH range



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Under Development Stage

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