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  • 221 Liter-Carbon Monoxide 50 ppm/ Methane 2.5% (50% LEL)/ Oxygen 17.0%/ Nitrogen

    • Carbon Monoxide (CO) 50 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 17.0% / Nitrogen BAL Calibration Gas – 221L 250 PSI CGA-165 Steel Disposable (Non-Reactive)

    E-Gas Depot

    $145.00
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    SKU:
    39-3250-221L
    Availability:
    3-5 Business Days + shipping time
    Weight:
    100.80 Ounces
    Width:
    9.00 (in)
    Height:
    16.25 (in)
    Depth:
    9.00 (in)
    Size:
    221L
    Gas Composition:
    CO / CH4 / O2
    Cylinder Material:
    Steel
    Cylinder Pressure:
    250 PSI
    Gas Reactivity:
    Non-Reactive
    Carbon Monoxide (CO) Concentration:
    50 PPM
    Methane (CH₄) Concentration:
    2.5% (50% LEL)
    Oxygen (O2) Concentration:
    17.0%
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    Product Description

    221L 4 Gas Calibration Gas – 17.0% O₂ Severe Oxygen Deficiency (Extended-Use Cylinder)

    This 221L disposable 4 gas calibration gas is designed for extended-duration severe oxygen deficiency simulation, featuring 17.0% Oxygen (O₂) along with Carbon Monoxide (CO) and Methane (CH₄) balanced in nitrogen.

    With higher capacity than portable cylinders, this unit enables multiple calibration cycles and continuous hazard-level testing, making it ideal for field teams operating in high-risk confined space environments.

    Gas Composition

    • Carbon Monoxide (CO): 50 PPM
    • Methane (CH₄): 2.5% (50% LEL)
    • Oxygen (O₂): 17.0% (Severe Deficiency Level)
    • Balance Gas: Nitrogen (N₂)

    Cylinder Specifications

    • Cylinder Size: 221L
    • Pressure: 250 PSI
    • Valve: CGA-165
    • Material: Steel
    • Type: Disposable
    • Reactivity: Non-Reactive

    Applications

    • Multi-day confined space hazard testing
    • Severe oxygen deficiency calibration
    • High-frequency bump testing programs
    • Industrial safety compliance
    • Field operations requiring extended gas supply

    Why This 221L 17% O₂ Cylinder is Critical

    • Simulates worst-case oxygen-deficient environments at scale
    • Reduces downtime with extended runtime capacity
    • Eliminates need for refillable cylinder management
    • Supports continuous, high-frequency testing programs
    • Compatible with CGA-165 regulator systems

    221L vs Other Severe O₂ Options

    • 34L → portable daily testing
    • 60–66L → field extended use
    • 221L (this SKU) → multi-day / high-frequency operations

    17.0% vs 18.0% Oxygen Calibration

    • 18.0% O₂ → critical threshold testing
    • 17.0% O₂ (this SKU) → severe / worst-case validation

    Used together, they ensure complete alarm verification coverage.

    Need Bulk or Custom Gas Solutions?

    We offer refillable high-capacity cylinders and custom calibration gas blends. Contact us for facility-level supply programs.

     

    Other Details

    Warranty 48 months

    Product Videos

    Custom Field

    Size 221L
    Gas Composition CO / CH4 / O2
    Cylinder Material Steel
    Cylinder Pressure 250 PSI
    Gas Reactivity Non-Reactive
    Carbon Monoxide (CO) Concentration 50 PPM
    Methane (CH₄) Concentration 2.5% (50% LEL)
    Oxygen (O2) Concentration 17.0%

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