Maintaining the optimum performance of a metalworking fluid over an extended operating period is quite challenging. The key operating parameters of an in-use metalworking fluid need to be monitored on a periodic basis to ensure that optimum performance is maintained. This webinar will discuss some of the important monitoring tests that need to be run to evaluate the condition of a metalworking fluid over time. As a conclusion, a brief discussion will be held about how the data can be applied to a metalworking fluid system.