Mercury Sulfate Reference Electrode, 6 x 65 mm, AcidicAbout this item Versatile Applications: designed as an acidic electrode with mercury based properties, making it suitable for a variety of laboratory experiments and research purposes Precise Dimensions: equipped with a 6 mm diameter and 65 mm length lower tube, ensuring precise and efficient operation in lab setups Preparation Required: before use, fill the electrode with saturated potassium sulfate solution and conduct preliminary tests to ensure