The over is used for measuring mass loss after heating the film for petroleum asphalt for roads and measuring changes of penetration, viscosity, softening point, ductility to assess aging resistance of the asphalt. The oven complies with the standard JTJ052-2000 issued by the Ministry of Communications.(Stainless steel is employed for internal bladder of the oven) Technical parameters: (1) Mains voltage: 220V~2.5 KW (2) Accuracy of control: 163℃±1℃ (3) Revolving speed of sample turntable: 5.5r/min (4) Time for each test: 5.25h (5) Dimensions of the workroom: 430 ×410×450mm (6) Quantity of samples for each test: 4 Pcs |