- Home
- Services
- Reference materials
- Sulfur dioxide
Sulfur dioxide
Primary reference materials containing sulfur dioxide in nitrogen or synthetic air are available in a broad range of composition. Within the listed ranges any composition can be supplied. Other concentrations and other matrices are available on request.
Sulfur dioxide in nitrogen | ||||
PRM code | Certified component
| Nominal fraction range (mol/mol)
| Stability period
| |
BH10 | SO2 | 10 - 100 · 10-6 | 24 months | |
BH11 | SO2 | 100 - 1000 · 10-6 | 36 months | |
BH12 | SO2 | 0,1 - 1 · 10-2 | 36 months | |
Sulfur dioxide in synthetic air | ||||
PRM code | Certified component | Nominal fraction range (mol/mol)
| Stability period
| |
BH20 | SO2 | 10 - 100 · 10-6 | 24 months | |
BH21 | SO2 | 100 - 1000 · 10-6 | 36 months | |
BH22 | SO2 | 0,1 - 1 · 10-2 | 36 months | |
Cylinder pressure 11,5 MPa, Cylinder valve outlet DIN 477 no. 1, Approximate deliverable volume 0,6 m3.