What is a sus unit?
Saybolt Universal Seconds (SUS), which is the time in seconds for 60 milliliters of oil to flow through a standard orifice at a given temperature.
How do you convert sus to cSt?
Multiply the cSt value by 4.664 if the test temperature was 210 F. The result is the cSt value converted to SUS. For example: 100 cSt tested at 210 F is equivalent to 466.4 SUS because 100 x 4.664 = 466.4.
Is centipoise the same as centistokes?
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).
What is cSt in viscosity measurement?
attostokes. A centistokes (cSt) is a decimal fraction of the CGS unit of kinematic viscosity stokes, which is equal to centimeter per second (cm²/s). 1 stokes is a kinematic viscosity of a fluid with a density of 1 g/cm³ and a dynamic viscosity of 1 poise.
What does sus stand for in viscosity?
Viscosity—Because an oil’s viscosity changes with temperature, it is always expressed at a reference temperature, usually 100° and 210° F. The most common unit in the United States is the Sabolt Universal Seconds (SUS) or Sabolt Seconds Universal (SSU), which is measured with a Saybolt Viscosimeter.
What is CPS unit of viscosity?
Centipoise (CPS) is the viscosity value that is assigned to liquids. It is a unit of dynamic viscosity, the typical type of viscosity we think of. A fluid with a low centipoise will flow and move easily and fast. A rating of a higher centipoise is going to flow much slower. See the centipoise ratings below to see.
What is the CGS unit of viscosity?
The cgs unit of viscosity is poise (P) and this name has been used in honor of a French physiologist Jean Léonard Marie Poiseuille. It is also commonly used particularly in ASTM standards, as centipoise (cP).
What does cSt mean in viscosity?
centistokes
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.
What is cSt in lubricants?
The other unit is the Centistoke (cSt) which is used to report the kinematic viscosity of motor oil at high temperatures. The number reflects the time required for a fixed amount of fluid to flow through a certain sized orifice on the testing device.