A very important measurement in many liquid chemical processes (industrial, pharmaceutical, manufacturing, food production, etc.) is that of pH: the measurement of hydrogen ion concentration in a liquid solution. A solution with a low pH value is called an “acid,” while one with a high pH is called a “caustic.” The common pH scale extends from 0 (strong acid) to 14 (strong caustic), with 7 in the middle representing pure water (neutral): pH is defined as follows: the lower-case ... Learn how a pH meter works, its parts, types, and applications. A pH meter measures the hydrogen ion concentration in a water-based solution and displays the pH value based on the Nernst equation. Let us understand the working principle better by following the detailed pH meter diagram below: A typical pH meter consists of three different parts: an internal electrode, a reference electrode and a voltameter (Figure – pH meter diagram) Best practices in pH testing, including the use of calibrated pH meters as shown in the pH meter diagram, are essential for regulatory compliance and product safety. By applying these pH assessment techniques, industry experts can uphold the highest quality standards, ultimately improving patient safety and the effectiveness of their products.
