... 31,000L, 33,000L, and 35,000L Standard ISO Tank TYPE20 ISO frame, UN portable tankVessel design codeASME VIII Div 1& IMDG ... 316L, SANS 50028-7 WNr 1.4402/1.4404Frame materialGB/T 1591-94-Q345DFrame dimensions Nominal capacity31,000L 33,000L 35 ... off dual scaleStacking10 high stacking, rated to 24000 kg per tank SWAP tank