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Fundamentals and Practice of Electrical Measurements

Practical measurements providing data on corrosion risk or cathodic protection are predominantly electrical in nature. In principle they concern the determination of the three principal parameters of electrical technology voltage, current, and resistance. Also the measurement of the potential of metals in soil or in electrolytes is a high-resistance measurement of the voltage between the object and reference electrode and thus does not draw any current (see Table 3-1). [Pg.79]

In all electrical measurements, current and voltage measuring instruments with two terminals are employed. The object being measured similarly has two termi- [Pg.79]

Reference electrode Me/Me system Electrolyte Potential at 25°C (V) Temperature dependence (mV/°C) Application [Pg.80]

Mercuric oxide Hg/Hg/- 0.1 A/NaOH +0.17 Dilute caustic soda [Pg.80]

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