Review of this section will help you to understand the components within the formulation of metalworking fluids, the various types of compounds which aid to its performance levels, and differentiation between the coolant types. Useful shop floor measurement techniques which help to control MWF failure are also explained. Since microbiological attack is a top MWF failure mechanism, it is explained further within this section and as to how to solve the problem if is consistent to your application. Finally, the health and safety aspects of the use of MWF is touched upon so they are better understood.