... ,250ml,100ml,50ml.5.Freezing-drying area:0.13-0.27 m²6.time of cooling down:<120min. time of vacuum ... disk into cold trap for pre-freezing.FD-27S, it is enhanced type based FD-27, it has dummy plate heating function,big ... details due to curve and data, and provide computer connection. FD-27S Freeze Dryer