Product Description
116L 4-Gas Calibration Gas – 19.5% Oxygen Deficiency Verification Blend
This 116 Liter reactive 4-gas calibration cylinder is engineered for safety programs requiring consistent oxygen-deficiency alarm validation at the OSHA-defined threshold of 19.5% O₂.
Gas mixture includes:
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Hydrogen Sulfide (H₂S) – 10 PPM
-
Carbon Monoxide (CO) – 50 PPM
-
Methane (CH₄) – 2.5% (50% LEL)
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Oxygen (O₂) – 19.5%
-
Nitrogen Balance
By reducing oxygen to 19.5%, this blend enables technicians to confirm proper alarm activation before confined space entry, while simultaneously verifying toxic and combustible sensor response.
With 1000 PSI fill pressure and 4.0 cubic feet of capacity, the 116L configuration supports structured monthly or weekly bump testing schedules without the bulk of higher-capacity cylinders.
Gas Concentration Specifications
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 10 PPM |
| Carbon Monoxide (CO) | 50 PPM |
| Methane (CH₄) | 2.5% (50% LEL) |
| Oxygen (O₂) | 19.5% |
| Balance | Nitrogen |
Cylinder Specifications
| Specification | Detail |
|---|---|
| Cylinder Size | 116 Liters |
| Pressure | 1000 PSI |
| Valve Type | C-10 |
| Cylinder Material | Aluminum |
| Gas Reactivity | Reactive |
| Approximate Volume | 4.0 Cubic Feet |
Ideal For
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Facility-wide confined space programs
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Industrial hygiene compliance audits
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Oil & gas operations
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Municipal and utility safety teams
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Multi-detector calibration fleets
Compatible with C-10 demand flow regulators and most major portable gas detector brands.
Why Choose the 116L 19.5% Configuration
• Confirms OSHA oxygen-deficiency alarm threshold
• Balanced capacity for structured calibration programs
• Reduces changeouts compared to mid-size cylinders
• Reactive mixture optimized for stable sensor performance
If you require alternate oxygen percentages, higher PSI fills, or customized toxic gas levels, our team provides rapid custom blend production.
