Dynacal® permeation tubes

Product Image
Request Pricing

Turn On Instant Requests

Receive your quote directly from the manufacturer.

0 Scientists have reviewed this product

Write the First Review

No Reviews

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.

Product Overview