Static air method

The effluent analysis methods commonly employed may be categorized in terms of air flow. One method measures the release of pheromone in a closed apparatus in which essentially no air movement occurs while the second method measures the release of pheromones into a stream of moving air. The first method has been called the static air method while the second has been called the moving air method. 

The release rates of (acetyl-l- Cj-gossyplure shown in Figure 3 have a mean value of 3.80 yg/fiber/day. When the mini-airflow rate is compared to the mini-static air rate of 2.27 yg/ fiber/day, it appears that the correlation of release rate measurements by different methods is no closer to solution than it was before. Although the rates are still not in agreement, there no longer is any question of achieving an accurate mass balance at the end of a series of measurements by either method. Since all the pheromone can be accounted for by both the mini-airflow and the mini-static air methods, the differences appear to be related to the conditions of the experiments. 

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