Product Description
4-Gas Calibration Gas – 25 PPM H2S / 50 PPM CO / 2.5% (50% LEL) CH4 / 12.0% O2 – 120L C-10 Cylinder
This 4-gas calibration gas blend is engineered for large-scale extreme oxygen-deficiency simulation in industrial and emergency response environments.
With 12.0% oxygen, this mixture represents severe hypoxic atmospheric modeling used for validating low-O₂ alarm thresholds under high-liability conditions. It ensures oxygen sensor accuracy during aggressive depletion scenarios while confirming toxic (H₂S, CO) and combustible (CH₄) channel integrity.
Concentration profile:
-
25 PPM Hydrogen Sulfide for toxic exposure sensor calibration
-
50 PPM Carbon Monoxide for conservative CO alarm validation
-
2.5% Methane (50% LEL) for combustible channel verification
-
12.0% Oxygen for extreme oxygen-deficiency alarm confirmation
Commonly specified for:
-
Industrial rescue team training
-
Petrochemical and refinery safety programs
-
IDLH environment simulation
-
High-frequency multi-detector fleet calibration
-
Advanced confined space certification
The 120L cylinder supports extended extreme hypoxia validation cycles, reducing changeout frequency in large facilities or training operations.
Gas Concentrations
| Component | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 25 PPM |
| Carbon Monoxide (CO) | 50 PPM |
| Methane (CH₄) | 2.5% (50% LEL) |
| Oxygen (O₂) | 12.0% |
| Balance | Nitrogen |
Cylinder Specifications
| Property | Value |
|---|---|
| Cylinder Size | 120L (4.2 ft³) |
| Pressure | 1050 psi |
| Cylinder Specification | C-10 |
| Cylinder Material | Aluminum |
| Gas Reactivity | Reactive |
Reactive multi-gas blends require compatible C-10 regulators to maintain mixture stability and calibration precision.
Applications & Detector Compatibility
Compatible with leading portable and fixed multi-gas detection platforms from BW, MSA, Industrial Scientific, RAE Systems, and Dräger.
Ideal for:
-
Extreme low-oxygen alarm validation
-
Emergency response simulation
-
Industrial plant-wide safety programs
-
Multi-sensor bump testing
-
High-risk confined space modeling
The 120L format is optimized for organizations conducting large-scale extreme hypoxia validation.
Need a Different Concentration or Cylinder Size?
If you do not see the exact gas mixture, ppm level, oxygen percentage, LEL value, or cylinder size required for your application, contact our calibration gas specialists. We can supply custom multi-gas blends tailored to your detector model, regulatory requirements, or site-specific hazard profile.
