Product Description
66L 4-Gas Calibration Gas – 18.5% Oxygen Deficiency Simulation Blend
This 66 Liter reactive 4-gas calibration cylinder is formulated to simulate oxygen-deficient environments at 18.5% O₂, creating a clear low-oxygen condition for alarm verification and training scenarios.
Gas blend includes:
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Hydrogen Sulfide (H₂S) – 10 PPM
-
Carbon Monoxide (CO) – 50 PPM
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Methane (CH₄) – 2.5% (50% LEL)
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Oxygen (O₂) – 18.5%
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Nitrogen Balance
At 18.5% oxygen, this mixture provides a deeper deficiency condition than the OSHA minimum threshold, allowing safety teams to confirm alarm response under more pronounced low-O₂ scenarios while validating toxic and combustible channels.
The 66L cylinder with 1150 PSI fill pressure offers balanced portability and sufficient volume for recurring confined space and industrial hygiene calibration programs.
Gas Concentration Specifications
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 10 PPM |
| Carbon Monoxide (CO) | 50 PPM |
| Methane (CH₄) | 2.5% (50% LEL) |
| Oxygen (O₂) | 18.5% |
| Balance | Nitrogen |
Cylinder Specifications
| Specification | Detail |
|---|---|
| Cylinder Size | 66 Liters |
| Pressure | 1150 PSI |
| Valve Type | C-10 |
| Cylinder Material | Aluminum |
| Gas Reactivity | Reactive |
| Approximate Volume | 2.3 Cubic Feet |
Recommended Applications
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Confined space rescue training
-
Oxygen-deficiency alarm validation
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Industrial hygiene programs
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Oil & gas safety operations
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Utility and wastewater compliance testing
Compatible with standard C-10 demand flow regulators used with most major portable multi-gas detection systems.
Why Choose the 18.5% Oxygen Blend
• Simulates pronounced oxygen-deficient conditions
• Confirms alarm response below OSHA minimum
• Tests toxic, LEL, and O₂ channels simultaneously
• Reactive formulation supports stable sensor performance
Custom oxygen setpoints, alternate PSI ratings, and modified gas ratios are available upon request.
