Diesel Odor Sampling and Analysis Using the Diesel Odor Analysis System (DOAS)

Diesel Odor sampling and analysis techniques and procedures using the Arthur D. Little, Inc. Diesel Odor Analysis System (DOAS) have been evaluated. Reproducibility of ± 0.1 TIA unit at the 2.0 TIA level and ± 0.2 TIA unit at the 1.5 TIA level are achievable if a consistent, well defined sampling procedure is used. Significant odor sample trap breakthrough and sample volume effects have been isolated. This study indicates that care must be given to defining a standard odor sampling configuration and procedure.