Certified Standard Oils
Article No. 4006
Viscosity Standard C350
Technical Attributes
-
- Zahn Cup No.
- 4 / 5
-
- Kinematic Viscosity
- 850 cSt
-
- Ford Cup Drain Time
- 70 sec
-
- Ford Cup No.
- 5
-
- Zahn Cup Drain Time
- 62 / 37 sec
Technical Specifications
Procedure
- Place flow cup in a precisely horizontal position using ring stand or temperature control jacket
- Close orifice
- Pour in test liquid
- Draw a clean glass plate over the rim of the cup, removing superfluous liquid into the overflow reservoir and closing the cup
- Remove glass plate horizontally
- Open the orifice and start the stopwatch simultaneously
- Stop the watch with the first break in the efflux stream
- Repeat the measurement three times, each with a new sample of the same material