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  • 120 Liter-Carbon Monoxide 50 ppm/ Methane 2.5% (50% LEL)/ Oxygen 18.0%/ Nitrogen

    • Carbon Monoxide (CO) 50 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 18.0% / Nitrogen BAL Calibration Gas – 120L 1050 PSI C-10 Aluminum (Non-Reactive)

    E-Gas Depot

    $213.40
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    SKU:
    39-3500-FX120
    Availability:
    3-5 Business Days + shipping time
    Weight:
    48.00 Ounces
    Width:
    3.50 (in)
    Height:
    15.00 (in)
    Depth:
    3.50 (in)
    Size:
    120L
    Gas Composition:
    CO / CH4 / O2
    Cylinder Material:
    Aluminum
    Cylinder Pressure:
    1050 PSI
    Gas Reactivity:
    Non-Reactive
    Carbon Monoxide (CO) Concentration:
    50 PPM
    Methane (CH₄) Concentration:
    2.5% (50% LEL)
    Oxygen (O2) Concentration:
    18.0%
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    Product Description

    120L 4 Gas Calibration Gas – 18.0% O₂ for Confined Space Hazard Testing

    This 120L 4 gas calibration gas is built for real-world confined space hazard simulation, featuring 18.0% Oxygen (O₂) alongside Carbon Monoxide (CO) and Methane (CH₄) balanced in nitrogen.

    At this oxygen level, the mixture enables accurate validation of low-oxygen alarms, ensuring gas detectors respond correctly under danger-level atmospheric conditions commonly encountered in industrial environments.

    Gas Composition

    • Carbon Monoxide (CO): 50 PPM
    • Methane (CH₄): 2.5% (50% LEL)
    • Oxygen (O₂): 18.0% (Critical Low Oxygen Threshold Testing)
    • Balance Gas: Nitrogen (N₂)

    Cylinder Specifications

    • Cylinder Size: 120L
    • Pressure: 1050 PSI
    • Valve: C-10
    • Material: Aluminum
    • Reactivity: Non-Reactive

    Applications

    • Confined space entry compliance
    • Oxygen deficiency alarm verification
    • Industrial hazard simulation
    • Multi-gas detector calibration
    • Safety audits and regulatory testing

    Why This 120L 18% O₂ Cylinder Converts

    • Tests detectors at true hazard-level oxygen conditions
    • Sized for practical field use without constant replacement
    • More efficient than 60L for routine compliance programs
    • Easier to deploy than bulk cylinders
    • Compatible with standard C-10 regulators

    When to Use 18.0% vs 19.0% O₂

    • 19.0% O₂ → early deficiency / warning-level checks
    • 18.0% O₂ → critical alarm validation (this SKU)

    This makes it essential for full compliance testing programs.

    Need Custom Oxygen Levels or Larger Cylinders?

    We provide calibration gases across multiple oxygen thresholds and cylinder sizes. Contact us for custom blends or high-volume supply programs.

     

    Other Details

    Warranty 48 months

    Product Videos

    Custom Field

    Size 120L
    Gas Composition CO / CH4 / O2
    Cylinder Material Aluminum
    Cylinder Pressure 1050 PSI
    Gas Reactivity Non-Reactive
    Carbon Monoxide (CO) Concentration 50 PPM
    Methane (CH₄) Concentration 2.5% (50% LEL)
    Oxygen (O2) Concentration 18.0%

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