Electrolyte Solution 0.5M (NH₄)₂SO₄ (4 x 30 mL)

The electrolyte level in refillable electrodes should be checked before performing any measurement. If the level is low, refill with the proper electrolyte solution to ensure the correct electrode performance. This simple maintenance helps guarantee adequate head pressure to promote efficiency and precision of your refillable electrodes. Some electrolyte solutions are also available in FDA compliant bottles.