Asphalt Institute Vacuum Viscometer
ASTM D2171
The Asphalt Institute Vacuum Viscometer measures the viscosity of highly viscous materials according to ASTM D2171. Minimum sample volume is 3 mL. Minimum bath depth is 180 mm (7.1 in). Viscometers are provided with a certificate of calibration and instruction sheet. Permanently attached round metal holders are included or may be ordered separately.
Asphalt Institute Vacuum Viscometers
| Catalog Number | Size | Approximate Constant (poise/sec at 300 mm Hg) |
Viscosity Range (poise) |
||||
|---|---|---|---|---|---|---|---|
| without holder | with holder* | Bulb B | Bulb C | Bulb D | Low | High | |
| 9724-R50 | 9724-T50 | 25 | 2.0 | 1.0 | 0.7 | 42 | 800 |
| 9724-R55 | 9724-T55 | 50 | 8.0 | 4.0 | 3.0 | 180 | 3200 |
| 9724-R60 | 9724-T60 | 100 | 32 | 16 | 10 | 600 | 12800 |
| 9724-R65 | 9724-T65 | 200 | 128 | 64 | 40 | 2400 | 52000 |
| 9724-R70 | 9724-T70 | 400R | 500 | 250 | 160 | 9600 | 1400000 |
| 9724-R75 | 9724-T75 | 800R | 2000 | 1000 | 640 | 38000 | 5800000 |
*Round holder is compatible with a 51 mm (2 in) diameter port
