Summary

  The instrument is designed and made as per T0621 and ASTM D139 Asphalt Standard Viscosity Test in the Industry Standard of People’s Republic of China JTJ052-2000 Specifications and Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering. It is suitable to determine the viscosity of liquid petroleum asphalt, coal pitch and emulsified asphalt at flowing state.

I. Main technical specifications

1. Power supply: AC 220 V±10%, 50 Hz

2. Circular trough:

 (1) Inner diameter: 160 mm

 (2) Depth: 116 mm

3. Sample tube: four pieces in a set. The diameter of effuse tube is: φ10 mm±0.025 mm, φ5 mm±0.025 mm, φ4 mm±0.025
    mm and φ3 mm±0.025 mm.

4. Ball stopper specification:

    A: Diameter of ball: 12.7 mm±0.05 mm; Sign height: 92 mm±0.25 mm.

　B: Diameter of ball: 6.35 mm±0.05 mm; Sign height: 90.3 mm±0.25 mm.

5. Temperature controlling range: room temperature～90 ℃.

6. Temperature controlling accuracy: ±0.1 ℃

7. Time resolution: 0.1 s, maximum time value: 999.9 s

8. Heating type: electric heater. Use a circulation pump circulating water bath liquid to control the temperature in the
    circular trough. Heating power is 600 W.

9. Ambient temperature: -10℃～35 ℃

10. Relative humidity: ≤ 85%

11. Dimension: length 420 mm, width 340 mm, height 570 mm

12. Maximum power consumption: 700 W