Zeitfuchs Cross-Arm Viscometer (Reversed Flow)
ASTM D445, ASTM 2170, ISO 3104
The Zeitfuchs® Cross-Arm Viscometer measures kinematic viscosity of transparent and opaque Newtonian liquids according to ASTM D445 and ISO 3104. Filling and cleaning does not require removal from the constant temperature bath. Minimum sample volume is 1 mL to 3 mL. Minimum bath depth is 230 mm (9 in). Unity factor series has a constant within ± 0.2% of the values listed. Viscometers are provided with a certificate of calibration and instruction sheet. Permanently attached round or rectangular metal holders are included or may be ordered separately.
Also used to measure kinematic viscosity of kiquid (cutback) asphalts and road oils according to ASTM D2170.
Zeitfuchs Cross-Arm Viscometers
| Catalog Number | Size | Approximate Constant (mm²/s²) |
Viscosity Range (mm²/s)† | ||||||
|---|---|---|---|---|---|---|---|---|---|
| without holders | with round metal holders* | with rectangular metal holders** | Low | High | |||||
| Standard | Unity Factor | Standard | Unity Factor | Standard | Unity Factor | ||||
| 9723-S50 | 9723-U50 | 9723-W50 | 9723-Y50 | 9724-B50 | 9724-D50 | 1 | 0.003 | 0.6 | 2.0 |
| 9723-S53 | 9723-U53 | 9723-W53 | 9723-Y53 | 9724-B53 | 9724-D53 | 2 | 0.01 | 2.0 | 10 |
| 9723-S56 | 9723-U56 | 9723-W56 | 9723-Y56 | 9724-B56 | 9724-D56 | 3 | 0.03 | 6.0 | 30 |
| 9723-S59 | 9723-U59 | 9723-W59 | 9723-Y59 | 9724-B59 | 9724-D59 | 4 | 0.1 | 20 | 100 |
| 9723-S62 | 9723-U62 | 9723-W62 | 9723-Y62 | 9724-B62 | 9724-D62 | 5 | 0.3 | 60 | 300 |
| 9723-S65 | 9723-U65 | 9723-W65 | 9723-Y65 | 9724-B65 | 9724-D65 | 6 | 1.0 | 200 | 1000 |
| 9723-S68 | 9723-U68 | 9723-W68 | 9723-Y68 | 9724-B68 | 9724-D68 | 7 | 3.0 | 600 | 3000 |
| 9723-S71 | 9723-U71 | 9723-W71 | 9723-Y71 | 9724-B71 | 9724-D71 | 8 | 10 | 2000 | 10000 |
| 9723-S74 | 9723-U74 | 9723-W74 | 9723-Y74 | 9724-B74 | 9724-D74 | 9 | 30 | 6000 | 30000 |
| 9723-S77 | 9723-U77 | 9723-W77 | 9723-Y77 | 9724-B77 | 9724-D77 | 10 | 100 | 20000 | 100000 |
*Round holder is compatible with a 51 mm (2 in) diameter port.
**Rectangular holder is compatible with a bath opening of 25 mm × 48 mm (1 in × 1.9 in).
†Viscosity ranges in mm²/s represent flow times of 200 to 1000 seconds.
