Odor quantification methods and protocols follow international standards and are routinely
practiced by many industries. The four case studies presented illustrate the utility of odor
analysis and evaluation data. The persistence odor parameter provides quantifiable data when
comparing building material odors. The intensity odor parameter is useful for the study of
volatile compound release, such as paint drying, solvent evaporation, or adhesive curing. The
use of odor character descriptors provides insight and understanding for studies with malodors as
well as fragrances, i.e. cleaning agents. The odor concentration parameter of detection threshold
documents changes in odorant concentration (odorous molecules) and quantifies performance.
These examples show that a data base of odor results developed for a specific product line or for
general product research can serve as evidence for resource allocation of product engineering,
research and development, and capital equipment for odor prevention and thus minimize
customer and/or occupant complaints and concerns.