This H-Cell is specifically designed for the electrochemical characterization of membranes and separators in liquid media. It is ideal for evaluating key parameters such as ionic selectivity, crossover, resistance, and conductivity under controlled experimental conditions. The cell does not include a prefixed membrane, allowing users to easily open the membrane holder and install their own membrane as required. Designed for flexibility and precision, the system features integrated gas purging ports, supplied with 4 mm PTFE plugs to securely seal the ports when not in use, as well as 4 mm PTFE purging tubes for gas purging or gas collection applications. Constructed from chemically resistant materials, the cell ensures reliable, leak-proof performance for advanced electrochemical research.