Scope of application The instrument is designed and made as per The National Standard GB/T12579 ASTM D892””oil bubble performance assay design, determination of engine oil, gear oil, hydraulic oil, oil foam characteristics to The extent of The tendency of foam and foam stability assessment lubricants Function characteristics 1, large-screen LCD, English operation interface; 2, intelligent temperature control mode, with a High precision temperature control 3, showing an intuitive, easy to operate, High technology content. 4, automatic digital electronic timing Technical parameters 1, The power supply voltage: AC220V ± 10% 50Hz Thermostatic bath temperature: 24 °C93.5 °C 3 Temperature accuracy 0.5 ° C 4, The heater power: 1400W (93.5 ° C bathtub) 800W (24 ° C bath) 5, refrigerations designed and made as per: Immersion 6, temperature measurement devices: platinum resistance (PT100) 7, The gas diffusion head diameter: 25.4mm ± 0.02 8 diffusion head air permeability: 2.4Pa (250mmH2O) pressure, 3000-6000ml/min 9, The test graduated cylinder Specifications: 1000ml