Product Description
4-Gas Calibration Gas – 25 PPM H2S / 50 PPM CO / 2.5% (50% LEL) CH4 / 12.0% O2 – 60L C-10 Cylinder
This 4-gas calibration gas blend is engineered for extreme oxygen-depletion simulation in confined space and industrial emergency preparedness programs.
With 12.0% oxygen, this mixture represents severe atmospheric hypoxia used to validate low-O₂ alarm activation thresholds and response timing under high-risk conditions. Simultaneously, it verifies toxic and combustible sensor performance to ensure full multi-gas detector reliability.
Concentration profile:
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25 PPM Hydrogen Sulfide for toxic sensor verification
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50 PPM Carbon Monoxide for conservative CO alarm validation
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2.5% Methane (50% LEL) for combustible channel accuracy
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12.0% Oxygen for extreme oxygen-deficiency alarm confirmation
Commonly used for:
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Emergency response and rescue simulation
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Industrial confined space certification
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Safety compliance audits
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Process safety management programs
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Multi-detector calibration verification
The 60L cylinder offers a balanced capacity option for facilities conducting structured extreme hypoxia testing without requiring large-volume cylinders.
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 | 60L (2.1 ft³) |
| Pressure | 1000 psi |
| Cylinder Specification | C-10 |
| Cylinder Material | Aluminum |
| Gas Reactivity | Reactive |
Reactive multi-gas blends require compatible C-10 regulators to preserve mixture stability and calibration precision.
Applications & Detector Compatibility
Compatible with leading portable and fixed multi-gas detection systems from BW, MSA, Industrial Scientific, RAE Systems, and Dräger.
Ideal for:
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Extreme low-oxygen alarm validation
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Emergency scenario simulation
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Industrial safety training
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Fleet bump testing programs
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Confined space compliance verification
The 60L format supports repeatable extreme hypoxia validation in both facility-based and field-deployed environments.
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.
