Product Description
4-Gas Calibration Gas – 25 PPM H2S / 200 PPM CO / 2.5% (50% LEL) CH4 / 17.0% O2 – 60L C-10 Cylinder
This 4-gas calibration gas blend is engineered for facilities requiring simultaneous elevated carbon monoxide validation and oxygen-deficiency alarm simulation.
With 17.0% oxygen, this mixture supports verification of oxygen-deficiency alarm thresholds commonly configured for confined space entry programs. The 200 PPM Carbon Monoxide concentration provides elevated toxic gas validation for combustion and industrial exposure scenarios.
Concentration profile:
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25 PPM Hydrogen Sulfide for toxic channel calibration
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200 PPM Carbon Monoxide for elevated CO alarm validation
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2.5% Methane (50% LEL) for combustible sensor accuracy
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17.0% Oxygen to simulate oxygen-deficient conditions
Commonly specified for:
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Confined space entry training and validation
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Rescue team preparedness programs
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Industrial plant compliance testing
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Oxygen-deficiency alarm verification
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Multi-sensor safety system calibration
The 66L cylinder provides balanced capacity for structured deficiency simulation programs without moving to enterprise-volume formats.
Gas Concentrations
| Component | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 25 PPM |
| Carbon Monoxide (CO) | 200 PPM |
| Methane (CH₄) | 2.5% (50% LEL) |
| Oxygen (O₂) | 17.0% |
| Balance | Nitrogen |
Cylinder Specifications
| Property | Value |
|---|---|
| Cylinder Size | 60L (2.1 ft³) |
| Pressure | 1150 psi |
| Cylinder Specification | C-10 |
| Cylinder Material | Aluminum |
| Gas Reactivity | Reactive |
Reactive multi-gas blends require compatible C-10 regulators to maintain mixture integrity and calibration accuracy.
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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Oxygen-deficiency alarm validation
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Elevated CO threshold testing
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Confined space compliance programs
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Rescue simulation exercises
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Industrial safety audits
The 66L configuration supports repeatable deficiency and toxic gas validation cycles in controlled safety environments.
Need a Different Concentration or Cylinder Size?
If you require a different oxygen percentage, ppm level, LEL value, or cylinder volume, our calibration gas specialists can supply custom 4-gas blends tailored to your detector configuration and regulatory standards.
