Description Overview GAOTek Automatic Rotational Viscometer The instrument is designed and made according to the requirement of the T0625 “Asphalt Brookfield Rotation Viscosity Test (Brookfield Viscometer Method)” in the Industry Standard of People’s Republic of China JTJ052 Specifications and Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering. It is suitable to determine the absolute viscosity of the Newtonian liquids and the apparent viscosity of the non-Newtonian liquids. Features Viscometer with automated viscosity measurement Streamlined operation for efficiency Accurate and reliable results for quality control Diverse applications in research and industry User-friendly interface and data recording Technical Specifications Measurement range 25 mPa·s to 1 mPa.s × 107 mPa·s (If choosing the No.30 spindle, the measurement range can extend to 2 mPa.s × 107 mPa·s) Spindle 21, 27, 28, 29 total four types of spindles (the No.30 is optional) Spindle speed 0.1 RPM to 200 RPM, continuously speed regulation (With 12 grades of speed) Measurement error ±2 % (F·S), choosing the No.30 spindle, it will be ±3 % (F·S) Sample cylinder cubage 20 ml Power supply AC 220 V ±10 %, 50 Hz Ambient temperature 41°F to 95°F (5 ℃ to 35 ℃ (when the control temperature of the heater is close to the ambient temperature, turn on the air conditioner to allow the ambient temperature is approximately 5 ℃ lower than the control temperature of the heater) Relative humidity ≤80 % Temperature control range 77°F to 392°F (25 ℃ to 200 ℃) Temperature control accuracy 31.82°F to 32.18°F (±0.1 ℃)
