Milipascalsegundo

Milipascalsegundo, commonly abbreviated as mPa·s, is a derived unit of dynamic viscosity. It is obtained from the pascal-second (Pa·s) by applying the milli- prefix, so 1 mPa·s equals 0.001 Pa·s. The milli- prefix indicates one-thousandth. The millipascal-second is widely used to quantify the viscosity of low-viscosity fluids such as water and many gases. In rheology, the centipoise (cP) is often used interchangeably with the millipascal-second, since 1 cP = 1 mPa·s. For example, water at room temperature has a dynamic viscosity of about 1.0 mPa·s (0.001 Pa·s). Air at room temperature has a dynamic viscosity of about 1.8 × 10^-5 Pa·s, or roughly 0.018 mPa·s. The unit is common in material science, engineering, and fluid mechanics, particularly when working with liquids in the mPa·s range. It remains a convenient scale for describing the viscosity of low-viscosity liquids, while higher viscosities are expressed in Pa·s or larger units. The milipascalsegundo is not an independent SI base unit but a decimal submultiple of the pascal-second, facilitated by SI prefixes for practical representation of viscosity values.