A refinery was interested in increasing the production of their lubrication products by reducing the time it takes to formulate the products. The facility had several blending tanks in varying sizes, which were used for blending multiple products. Their operating procedures required that they test samples from the top, middle, and bottom of the tanks to ensure the samples were homogenous. Because they didn’t know the exact blending time of the batches, their procedures required that they wait for an hour or more to be sure that full blending had occurred. This effort was time-intensive and could add 45 minutes or more to a batch. If the mixing wasn’t complete and the tests needed to be performed again, even more time would be added to the process.