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Applications and chemical list

Often the gas standards in cylinder mixtures are very reactive and instable, especially at low concentrations. Permeation tubes are ideal devices in generation of calibration gas standard for:

- air quality analyzers
- gas analyzers - FTIR
- gas chromatograph
- GC-MS
- Ion Mobility Spectrometer
- sniffers

With permeation devices is possible modify the mixtures components simply removing and/or additioning a single tube in permeation chamber. For GC-MS calibration are also available deuterate substances.

Permeation devices are utilized in:

Petrochemical plants and Refinery
Semiconductor industry (trace moisture standard)
Gas sensor development
Test with controlled atmosphere
Catalyst test with synthetic gas
Test on Odours Monitor

Partial chemical list, other substances on request
The gas concentration can be calculated using following equations:

C(ng/sccm) = C(ppm) x K1
C(ppm) = C(ng/sccm) x K2

where

K1 = Molecular Weigh / 24.46
K2 = 24.46 / Molecular Weight
24.46 is the molar volume in liters @ 25°C, 760 mmHg