ANSI/ISA-75.01.01-2012（60534-2-1 MOD）包括用于预测可压缩和不可压缩流体通过控制阀的流量的方程式。不可压缩流的方程基于牛顿不可压缩流体的标准流体动力学方程。它们不适用于遇到非牛顿流体、流体混合物、泥浆或液固输送系统时使用。不可压缩流动方程可谨慎用于非蒸发多组分液体混合物。

ANSI/ISA-75.01.01-2012 (60534-2-1 MOD) includes equations for predicting the flow of compressible and incompressible fluids through control valves. The equations for incompressible flow are based on standard hydrodynamic equations for Newtonian incompressible fluids. They are not intended for use when non-Newtonian fluids, fluid mixtures, slurries or liquid-solid conveyance systems are encountered. The equations for incompressible flow may be used with caution for non-vaporizing multi-component liquid mixtures.