The character of a sample is evaluated by the odor assessors and reported using “odor descriptors.” Odor character is also known as “odor quality.” Odor descriptors provide a referencing vocabulary for the odor character / odor quality. Numerous “standard” odor descriptor lists are available to use as referencing vocabulary. One standard “list” published by the International Association on Water Pollution Research and Control (IAWPRC) is the “Flavor Wheel.” A flavor wheel is a simple method to assign descriptors. The three to five most frequently assigned odor descriptors by the evaluating odor panel are reported for referencing purposes.