Modified Koppers Vacuum Viscometer (Reversed Flow)
ASTM D2171
The Modified Koppers Vacuum Viscometer measures the viscosity of highly viscous materials according to ASTM D2171. Minimum sample volume is 2 mL. Minimum bath depth is 178 mm (7 in). Viscometers are provided with a certificate of calibration and instruction sheet. Holders are sold separately.
Koppers Modified Vacuum Viscometers
| Catalog Number | Size | Approximate Constant (poise/sec at 300 mm Hg) | Viscosity Range (poise) | |||
|---|---|---|---|---|---|---|
| Bulb B | Bulb C | Bulb D | Low | High | ||
| 9724-W50 | 25 | 2.0 | 1.0 | 0.7 | 42 | 800 |
| 9724-W55 | 50 | 8.0 | 4.0 | 3.0 | 180 | 3200 |
| 9724-W60 | 100 | 32 | 16 | 10 | 600 | 12800 |
| 9724-W65 | 200 | 128 | 64 | 40 | 2400 | 52000 |
| 9724-W70 | 400 | 500 | 250 | 160 | 9600 | 200000 |
