calibration gas standards/generators
from
vici metronics
228
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VICI Metronics, Inc. in Poulsbo,Washington is the leading manufacturer of devices
and instruments that are used in the generation of calibration gas standards,
including Dynacal® and G-Cal permeation tubes and Dynacalibrator® and
G-Cal calibration gas generators. The product line also includes gas purifiers,
contaminant traps, and GC Industries oxygen and toxic gas monitors. Metronics
is also the leading provider of explosives, narcotics, and chemical warfare
dopants for TSA airport security (ammonia, DCM, and BHT), law enforcement,
border patrol, military, and other trace detection industry professionals.
Calibration Gas Standards
and Calibration Gas Generators
from
VICI Metronics
Calibration Gas Standards
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. Permeation rate data is
already established for hundreds of
different compounds, and rates for
new compounds can be easily certified
using NIST-traceable standards.
A
dvantages
Calibration devices fromVICI Metronics
offer several advantages over cylinder-
supplied gas calibration standards.
Multi-component gas mixtures can be
easily generated with NIST traceability
employing established EPA and ASTM
protocols by using the appropriate
combination of permeation devices.
The technique also allows the removal
of a single component from a gas
mixture by simply removing the
appropriate permeation device.
A wide range of concentrations can
easily be generated by simply varying
either the dilution flow rate and/or the
set point temperature. In addition,
their small size and inherent stability
allow us to inventory thousands
of devices for delivery from stock.
Because of the size and the limited
quantity of chemical fill, we can offer
overnight delivery via air express.
By contrast, bottled trace level (ppb
and ppm) standards can be very
expensive, and calibrations requiring
multiple components over a wide
range of concentrations require a large
number of gas cylinders, consuming
valuable lab space as well. Problems
can also arise from degradation of
the standard within the cylinder, from
changes in cylinder pressure, and from
interaction of calibration components
and surfaces.
to order
For prices or more
information about
specific compounds
available in permeation
devices, contact VICI
Metronics:
Toll-free 877–737–1887
Tel . . . 360–697–9199
Fax . . .360–697–6682
vicimetronics.com
CHROMalytic TECHnology Pty Ltd AUSTRALIAN Distributors e-mail:
Tel: 03 9762 2034
