Odor panels consist of individuals (panelists / assessors) that are trained following the “Guidelines for Selection and Training of Sensory Panel Members” (ASTM Special Technical Publication 758). Assessors are recruited from the community at large. Persons who us tobacco products, who may be or are pregnant, or who have chronic allergies or asthma are not candidates for the odor panel. “Odor panel rules” are part of the assessors’ agreement to participate in odor evaluations.