Dynacal® permeation tubes
Permeation tubes are small, inert capsules containing a pure chemical compound in a two phase equilibrium between its gas phase and its liquid or solid phase. They are used to generate a stable concentration of a specific trace chemical. At a constant temperature, the device emits the compound through its permeable portion at a constant rate. They are typically inserted into a carrier flow to generate test atmospheres for c…
The supplier does not provide quotations for this product through SelectScience. You can search for similar products in our Product Directory.
Permeation tubes are small, inert capsules containing a pure chemical compound in a two phase equilibrium between its gas phase and its liquid or solid phase. They are used to generate a stable concentration of a specific trace chemical. At a constant temperature, the device emits the compound through its permeable portion at a constant rate.
They are typically inserted into a carrier flow to generate test atmospheres for calibrating gas analyzer systems, testing hazardous gas alarms, or conducting long-term studies of effects on materials or biological systems.
A recent application is their use as explosives, narcotics, and chemical warfare dopants for TSA airport security (ammonia, DCM), law enforcement, border patrol, military, and other trace detection industry professionals.
