Product Description
60L LPG-Equivalent 4-Gas Calibration Gas – 25 PPM H₂S with 19.0% O₂
This 60L reactive 4-gas calibration cylinder is formulated for confined space and industrial safety detector calibration where oxygen-deficiency conditions and LPG-equivalent combustible levels must be verified.
The mixture includes 25 PPM hydrogen sulfide, 50 PPM carbon monoxide, 1.62% methane representing 50% LEL propane equivalent, and 19.0% oxygen, supporting multi-sensor calibration across standard 4-gas monitoring instruments.
Gas Composition
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Hydrogen Sulfide (H₂S): 25 PPM
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Carbon Monoxide (CO): 50 PPM
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Methane (CH₄): 1.62% (50% LEL LPG / Propane Equivalent)
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Oxygen (O₂): 19.0%
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Nitrogen: Balance
The 19.0% oxygen concentration enables calibration of oxygen-deficiency alarms used in confined space safety monitoring programs.
Cylinder Specifications
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Capacity: 60L
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Fill Pressure: 1000 PSI
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Valve Type: C-10
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Cylinder Material: Aluminum
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Gas Type: Reactive
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Approximate Volume: 2.1 Cubic Feet
The 1000 PSI configuration provides stable regulator flow and balanced cylinder capacity for regular calibration cycles.
Typical Applications
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Confined space entry programs
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Industrial safety compliance
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Oil & gas monitoring
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Wastewater treatment facilities
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Manufacturing plant safety operations
Compatible with C-10 demand flow regulators used across most portable 4-gas detector platforms.
Why This Calibration Blend
• Verifies oxygen-deficiency alarm thresholds
• Simulates LPG-equivalent combustible conditions
• Confirms toxic gas sensor response
• Supports routine calibration schedules
Custom gas mixtures and alternate LEL equivalents are available upon request.
