VICI Metronics’ Dynacal® 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.
At a constant temperature, the device emits the compound through its
permeable portion at a constant rate.
Accurate, stable concentrations range from PPB to high PPM. Due to our
expertise with hazardous compounds, we are now able to offer Hydrogen Cyanide.
See the complete list at
http://www.vici.com/calib/compounds.php
The purpose of a calibration gas standard is to establish a
reference point for the verification of an analysis. Permeation Tube rates can be certified using
standards traceable to NIST by the most basic and accurate laboratory procedure
– measuring the gravimetric weight loss over a known period of time at a known
temperature.
Devices 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 – in short, any situation requiring a stable concentration of a
specific trace chemical.
Permeation rate data is already established for hundreds of
different compounds, and rates for new compounds can be easily certified using
NIST -traceable standards.
For more information:
VICI Metronics, Inc., 26295 Twelve Trees Lane, Poulsbo, WA 98370; Phone: (360) 697 9199; Fax: (360) 697-6682; Web: www.vicimetronics.com; e-mail: metronics@vici.com
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