I. Summary This instrument is based on the People's Republic of China standard GB/T 1884 "Petroleum and liquid petroleum products Density Determination Method (Densitometer Method)" and the People's Republic of China Industry Standard SY/T 5651 "Petroleum Product Kinematic Viscosity Tester Technical Conditions" Design and manufacture required. This instrument is suitable for measuring the low temperature density of crude oil and liquid petroleum products, the low temperature density of petroleum products and non-petroleum product mixtures, or the determination of liquid petroleum products (referring to Newtonian liquid) in a constant temperature condition with a glass petroleum densitometer in the laboratory lower kinematic viscosity.   I. Main technical features 1. It adopts the form of an all-in-one machine, a constant temperature water bath, and a glass transparent observation window on the front. The design is novel, the structure is compact, the operation is comfortable, and the appearance is elegant. 2. The imported compressor is used to form the refrigeration system, and the refrigeration speed is fast. 3. One instrument can do both standard density test and kinematic viscosity test.II. Main technical specifications 1. Power supply：  AC(220±10%)V, 50Hz±1Hz 2. Total power consumption：1800 W 3. Tube capacity：  500ml 4. Temperature range： （5~100）℃ 5. Temperature precision： ±0.1℃ 6. Thermometer： -20℃～102℃, 0.2℃ division; 0℃～50℃, 50℃～100℃, 0.1℃ division; 7. Sample amount： 2 samples 8. Working environment： （15~30）℃, RH＜85% 9. Dimension：   510mm×400mm×600mm 10. Net weight：  40kg