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Leak detection gas mixtures
The listed PRMs are typical examples of standard gas mixtures used in leak detection. The compositions listed are on leakage measurement level. Some of these gases are used as tracers in dispersion modelling. Other compositions, at the level of the gases to be diluted are available on request.
Sulfur hexafluoride in synthetic air | ||||||||
PRM code | Certified component
| Nominal fraction range (mol/mol)
| Stability period
| |||||
LD-1 | SF6 | 1,2 · 10-9 | 24 months | |||||
Helium in nitrogen | ||||||||
PRM code | Certified component
| Nominal fraction range (mol/mol)
| Stability period
| |||||
LD-3 | He | 10,0 · 10-6 | 24 months | |||||
Cylinder pressure 11,5 MPa, Cylinder valve outlet DIN 477 no. 1, Approximate deliverable volume 0,6 m3.