What does SSU mean in viscosity?
What does SSU mean in viscosity?
Saybolt Universal Seconds
Saybolt Universal Seconds, SSU, is the kinematic viscosity as determined by the time in seconds required for 60 cc of fluid to flow through a standard orifice.
What is the viscosity of water in SSU?
Viscosity of some Common Liquids
| centiStokes (cSt, 10-6 m2/s, mm2/s) | Saybolt Second Universal (SSU, SUS) | Typical liquid |
|---|---|---|
| 0.1 | Mercury | |
| 1 | 31 | Water (20oC) |
| 4.3 | 40 | Milk SAE 20 Crankcase Oil SAE 75 Gear Oil |
| 15.7 | 80 | No. 4 fuel oil |
What is the SSU of water?
1 31 SSU
Specific Gravity and Viscosity Table for Various Craft Products
| Product | Specific Gravity | Viscosity |
|---|---|---|
| Soy Bean Oil | 0.91 | 500 SSU @ 44°F |
| Tomato Paste | 1.14 | 60M – 80M SSU |
| 21M SSU approx. | ||
| Water | 1 | 31 SSU @ 68°F |
What does SSU mean in pumps?
Viscosity. Saybolt Universal Seconds (SSU)
What is water viscosity?
The viscosity of water at a temperature of 20 degrees Celsius is approximately 0.01 poise or 10-3 Pa. s (Pascal seconds). Viscosity is a measure of the resistance of a fluid to deformation at a given rate. For liquids such as water, viscosity can be perceived as a measure of the liquid’s resistance to flow.
What is cSt viscosity?
The SI unit for kinematic viscosity is one meter squared per second and is equivalent to 10,000 St. Usually, centistokes (cSt) is used (1 cSt = 0.01 St = 1 mm2/s). The absolute or dynamic viscosity is equal to the kinematic viscosity, multiplied by the density of the fluid.
Are Centipoise and centistokes the same?
Centipoise = centistokes x specific gravity where specific gravity is assumed to be 0.8 (except for water). To find the exact cp of your fluid: cp = cSt x (weight per gallon x 0.120).
How do you convert viscosity to density?
Write the equation for density, given both the dynamic and kinematic viscosity of a substance. The equation is: Density = Dynamic viscosity / Kinematic viscosity. Substitute both the values for dynamic and kinematic viscosity into the equation for density.
Is viscosity the same as density?
In simpler words, density = number of molecules x molecular weight/volume occupied, while the viscosity is a measurement of the inter-molecular forces and molecule shapes. Viscosity tells you the “friction” between two layers of the given fluid, while density varies slightly with temperature, viscosity changes rapidly.
What is viscosity Sus?
Centistokes (cSt or ctsk) and Saybolt Universal seconds (SUS, SSU or SUV) are both units of viscosity. Viscosity is a measure of the resistance of a fluid which is being deformed. It can be colloquially described as the “stickiness” of a liquid. Both forms of units are commonly used in various forms of fluid mechanics.
