/community-hubs/measurement-instrumentation/b/flow_weblog/posts/uncertainty-in-your-process-unit-mass-balance-what-it-s-costing-you-and-how-to-improve-itAt the process unit level, the mass balance is particularly important, as the charge and yield measurement streams serve as the basis for operational decision-making. When imbalances occur, process unit engineers can’t optimize their units with confidenceen-USTelligent Community 13