SD-0625 Asphalt Brookfield Rotational Viscometer ◆◆Purpose This instrument is manufactured in accordance with the JTJ052-2000 and SH/T-0739-2003 asphalt Brookfield rotational viscosity test standards. It measures the apparent viscosity of road asphalt at temperatures above 45°C using the rotational method, expressed in millipascal-seconds (mPa·s). Based on the measurement results, the recommended mixing and compaction temperature ranges can be determined. ◆◆Technical Performance ◆ Measurement range: 100 mPa·s to 200,000 mPa·s ◆ Measurement accuracy: ±3% (F·S) ◆ Rotor specifications: No. 21, 27, 28, and 29 rotors ◆ Rotation speed: 5, 10, 20, 50 r/min ◆ Measurement method: Continuous measurement ◆ Temperature range: Room temperature +20°C to 200°C ◆ Temperature control accuracy: ±0.1°C ◆ Intelligent speed adjustment, Chinese and English interface ◆ Large-screen LCD display, programmable motor control, unaffected by mains frequency fluctuations ◆ RS232 interface for computer communication ◆ Sample volume: 10.5 mL