Nominal Capacity:40L Nominal Diameter:250mm Limited Filling Pressure(15c):1.52Mpa Hydrostatic Test Pressure:5.2Mpa Air Test Pressure:3 Mpa Material properties Compressive Strength:≥1.8N/mm2 Porosity:90~92% Volume Density:≤270g/L Shoulder Axia Gap:≤2.5mm Solvent:acetone Filling Gas Quantity:About7.2kg approx7.2kg Environmental Temperature:under 40