TC 2.3 is concerned with the nature of trace gaseous contaminants; the measurement of their properties;
their effects on living things and materials; the means of removing unwanted gaseous contaminants from gases;
and the effectiveness, energy usage, and economy of such purification equipment.
For both ordinary and extraordinary situations (including hostile acts), TC 2.3 is concerned with the effects
of gaseous contaminants on the quality of air supplied to and exhausted from enclosed spaces and with the sources
of gaseous contaminant pollution within such spaces.
The TC scope covers all aspects of odor technology, including odors, which are produced by volatile particulate
contaminants, but excludes purely physiological or psychological aspects of gaseous contaminants such as toxicology and odor perception.