A:Brief description: DSHD-8019A Aviation gasoline Existent Gum Tester is specially used to determine existent gum in the aviation gasoline and vehicle gasoline. DSHD-8019A Aviation gasoline Existent Gum Tester is designed according the national standard of People’s Republic of China GB/T8019-2008 Test Method for Existent Gum of Fuels (Jet Evaporation Methods). B:Technical parameters 1. Test hole: 5 pieces 2. Size: 590 mm×480 mm×340 mm 3. Power supply: AC 220V±10%, 50 Hz, 3500 W 4. Size of test hole: φ51 mm×70 mm 5. Working temperature: 160~165 ℃ 6. Flow rate at nozzle outlet: 600 ml/s for each hole 7. Temperature display: digitally displayed 8. Flow rate display: It is shown by float ball type air flow meter 9. Working pressure of air decompression valve: 0.07 MPA 10. Temperature controlling method: automatic temperature controlling 11. Evaporation bath type and size: Aluminum block; φ260 mm×130 mm