What is (centi) Poise?

Understanding (Centi) Poise as a Measurement of Viscosity

Definition and Importance

Measurement of Viscosity

(Centi) Poise is a unit of measurement used to quantify the viscosity of liquids. Viscosity refers to a fluid’s resistance to flow, and (centi) poise provides a numerical representation of this property.

Relevance in Dispensers

The viscosity of liquids, particularly hand soaps, is crucial when matching them with dispensers. Understanding and measuring viscosity ensures proper functionality and dispensing consistency.

Additional Information about Centipoise

cgs Unit

Centipoise is a cgs (centimeter-gram-second) unit of absolute viscosity. It is a measure of how thick or thin a liquid is, with water having a viscosity of one centipoise. Lower values indicate less viscosity.

Symbol and Pronunciation

The symbol for centipoise is cP, and it is pronounced as “centi-poiz.”

Poise as the Base Unit

Unit of Dynamic Viscosity

The poise (symbol P) is the base unit of dynamic viscosity in the cgs system. It is named after Jean Louis Marie Poiseuille, a French physician known for his work on fluid dynamics.

Equivalent Units

One poise (P) is equal to 1 g•cm^−1•s^−1. The International System of Units (SI) equivalent is the pascal second (Pa•s), where 1 Pa•s = 10 P.

Centipoise in the Metric System

Metric Prefix

The term centipoise often uses the metric prefix “centi-,” indicating one one-hundredth of a poise. The proper abbreviation for centipoise is cP.

Alternative Abbreviations

While cP is the standard abbreviation, alternative forms such as cps, cp, and cPs are also commonly used.

Millipascal-Second (mPa•s)

In SI units, centipoise is equivalent to one millipascal-second (mPa•s). This relationship is expressed as 1 cP = 10^−2 P = 10^−3 Pa•s.

Example of Water’s Viscosity

Water’s Viscosity

Water serves as a reference point, with a viscosity of 0.0091 poise at 25 °C or 1 centipoise at 20 °C. This highlights the low viscosity of water.

Practical Application and Contact Information

Application in Industry

The knowledge of (centi) poise is applied in various industries, especially in selecting and using fluids like hand soaps in dispensers.

Conclusion

If there are any questions or a need for further assistance related to viscosity, (centi) poise, or related topics, individuals are encouraged to Contact Us. The team can provide guidance and support in relevant areas.