Surface Tension vs Interfacial Tension. Both surface tension and interfacial tension are effects based on liquids. Both these effects take place due to the unbalanced intermolecular forces between the liquid or solutions molecules.
Statistical process control (SPC) is a method of quality control which employs statistical methods to monitor and control a process. This helps ensure the process operates efficiently, producing more specification-conforming product with less waste (rework or scrap).
We use Statistical Process Control to distinguish between these two types of variation, and SPC provides us with an operational definition of how to obtain the maximum from our processes. SPC uses what are known as âcontrol chartsâ, or âprocess behaviour chartsâ to analyze variation.