Product Description
66L 1150 PSI 4-Gas Calibration Gas – 15.0% Oxygen Severe Deficiency Blend
This custom 4-gas calibration mixture is engineered for programs requiring validation of detector performance under substantial oxygen displacement conditions.
At 15.0% oxygen, this blend simulates a significantly depleted atmosphere well below OSHA’s 19.5% requirement, ensuring alarm activation in high-risk confined space scenarios.
Gas Composition
Hydrogen Sulfide (H₂S): 25 PPM
Carbon Monoxide (CO): 100 PPM
Methane (CH₄): 2.5% (50% LEL)
Oxygen (O₂): 15.0%
Balance Gas: Nitrogen
This concentration level is selected when validating detector response under aggressive oxygen-deficiency exposure rather than routine threshold confirmation.
Cylinder Specifications
Cylinder Size: 66L (2.3 Cubic Feet)
Cylinder Pressure: 1150 PSI
Valve Type: C-10
Cylinder Material: Aluminum
Gas Reactivity: Reactive
Blend Type: Custom Mix
The 1150 PSI fill supports extended testing cycles in structured safety validation programs.
Intended Validation Scenarios
• High-risk confined space simulation
• Emergency response training programs
• Detector alarm stress verification
• Advanced industrial hygiene testing
• System response confirmation under deep oxygen depletion
Methane at 2.5% equals 50% LEL for combustible sensor validation.
CO at 100 PPM supports toxic alarm calibration points.
Oxygen Concentration Context
15.0% oxygen represents a substantial deficiency condition and is typically used for advanced alarm validation programs, not routine compliance bump testing.
Organizations selecting this blend are often validating detector reliability under more extreme atmospheric scenarios.
