DEGASSING UNITS AND TANK MEMBRANES, IN PARTICULAR FOR USE IN THE AUTOMOBILE INDUSTRY, INCLUDING MOBILE HYDRAULICS, THE SEMICONDUCTER INDUSTRY, THE FOOD INDUSTRY, AERONAUTICS, MEDICINE, PHARMACY, OIL AND GAS TRANSPORT TECHNOLOGY, ENVIRONMENTAL ENGINEERING, LABORATORY AND TESTING TECHNOLOGY, HOUSEHOLD AND SANITARY SYSTEMS, AND IN MINING AND IN THE FIELD OF STEELWORKS, POWER PLANTS, WIND ENERGY PLANTS, MACHINE TOOLS, TRANSFER PRESSES AND PLASTIC INJECTION MOULDING MACHINES