Commodity Fumigation License Practice Exam

Which type of detector tubes are useful for detecting fumigant leaks?

1. Medium range

2. Low range

3. High range

4. Ultra-high range

The correct answer is: High range

High range detector tubes are particularly useful for detecting fumigant leaks because they are designed to accurately measure high concentrations of gases and vapors. These tubes contain specific chemicals that react with the fumigant, causing a color change that can be quantitatively matched to a concentration level. In the context of fumigation, where the potential for hazardous gas leaks exists, having a detector that can respond effectively at higher concentrations is essential for ensuring safety. Low range and medium range detector tubes are typically suited for detecting lower concentrations of gases and may not be sensitive or responsive enough for the potentially high levels encountered in fumigation scenarios. Ultra-high range tubes, while capable of detecting even more extreme levels, are generally not necessary for typical fumigant leak situations, as the levels of concern fall into the high range category.