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  • 221 Liter-Carbon Monoxide 2.0%/ Hydrogen 2.0% (50% LEL)/ Oxygen 4.0%/ Nitrogen

    • Carbon Monoxide (CO) 2.0% / Hydrogen (H₂) 2.0% (50% LEL) / Oxygen (O₂) 4.0% / Nitrogen BAL Calibration Gas – 221L 250 PSI CGA-165 Steel Disposable – Custom Mix

    E-Gas Depot

    $255.00
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    SKU:
    43-400-221L
    Availability:
    10 days + shipping time
    Weight:
    100.80 Ounces
    Width:
    9.00 (in)
    Height:
    16.25 (in)
    Depth:
    9.00 (in)
    Size:
    221LS
    Gas Composition:
    CO / H2 / O2
    Cylinder Material:
    Steel
    Cylinder Pressure:
    250 PSI
    Gas Reactivity:
    Non-Reactive
    Carbon Monoxide (CO) Concentration:
    2.0%
    Hydrogen (H₂) Concentration:
    2.0% (50% LEL)
    Oxygen (O2) Concentration:
    4.0%
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    Product Description

    High-Volume CO / Hydrogen / Oxygen (4.0%) Custom Calibration Gas for Field Programs

    This custom calibration gas mixture contains Carbon Monoxide (CO) 2.0%, Hydrogen (H₂) 2.0% (50% LEL), and Oxygen (O₂) 4.0%, balanced in nitrogen. Supplied in a 221L steel disposable cylinder at 250 PSI with a CGA-165 valve, this blend is designed for high-usage calibration environments requiring reliable oxygen-deficiency simulation.

    The large disposable format allows for extended calibration cycles without frequent cylinder replacement, making it ideal for teams managing multiple detectors or continuous field operations.

    Gas Composition

    • Carbon Monoxide (CO): 2.0%
    • Hydrogen (H₂): 2.0% (50% LEL)
    • Oxygen (O₂): 4.0%
    • Balance Gas: Nitrogen

    Cylinder Specifications

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

    Applications

    • Oxygen-deficiency sensor calibration in high-use environments
    • Hydrogen (H₂) LEL verification across multiple detectors
    • Field-based safety and compliance programs
    • Confined space monitoring with reduced oxygen conditions
    • Industrial calibration requiring extended disposable gas supply

    Key Advantages

    • 221L disposable cylinder supports extended use with fewer changeouts
    • 4.0% oxygen enables accurate low-O₂ environment simulation
    • Hydrogen at 50% LEL ensures precise combustible gas calibration
    • Designed for efficient deployment in field-based operations
    • Compatible with CGA-165 regulators and high-volume calibration systems

    Custom Calibration Gas Options

    Custom calibration gas mixtures are available for applications requiring alternative concentrations, cylinder sizes, or gas combinations.

     

    Other Details

    Warranty 48 months

    Product Videos

    Custom Field

    Size 221LS
    Gas Composition CO / H2 / O2
    Cylinder Material Steel
    Cylinder Pressure 250 PSI
    Gas Reactivity Non-Reactive
    Carbon Monoxide (CO) Concentration 2.0%
    Hydrogen (H₂) Concentration 2.0% (50% LEL)
    Oxygen (O2) Concentration 4.0%

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