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  • 120 Liter-Hydrogen Sulfide 25 ppm/ Carbon Monoxide 50 ppm/ Methane 1.62% (50% LEL Propane Equiv.)/ Oxygen 19.0%/ Nitrogen

    • Hydrogen Sulfide (H₂S) 25 PPM / Carbon Monoxide (CO) 50 PPM / Methane (CH₄) 1.62% (50% LEL LPG Equivalent) / Oxygen (O₂) 19.0% / Nitrogen BAL 4-Gas Calibration Gas – 120L 1050 PSI C-10 Aluminum (Reactive)

    E-Gas Depot

    $404.80
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    SKU:
    155-1300-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:
    H2S / CO / CH4 / O2
    Cylinder Specification:
    C-10
    Cylinder Material:
    Aluminum
    Gas Reactivity:
    Reactive
    Cylinder Pressure:
    1050 PSI
    Hydrogen Sulfide (H2S) Concentration:
    25 PPM
    Carbon Monoxide (CO) Concentration:
    50 PPM
    Methane (CH4) Concentration:
    1.62% (50% LEL LPG Equivalent)
    Oxygen (O2) Concentration:
    19.0%
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    Product Description

    120L LPG-Equivalent 4-Gas Calibration Gas – 25 PPM H₂S with 19.0% Oxygen

    This 120L reactive 4-gas calibration cylinder is designed for large-scale confined space detector calibration programs where oxygen-deficiency conditions and LPG-equivalent combustible gas levels must be verified.

    The blend contains 25 PPM hydrogen sulfide, 50 PPM carbon monoxide, 1.62% methane representing 50% LEL propane equivalent, and 19.0% oxygen, providing a realistic simulation of hazardous confined-space atmospheres.

    Gas Composition

    • Hydrogen Sulfide (H₂S): 25 PPM

    • Carbon Monoxide (CO): 50 PPM

    • Methane (CH₄): 1.62% (50% LEL LPG / Propane Equivalent)

    • Oxygen (O₂): 19.0%

    • Nitrogen: Balance

    The 19.0% oxygen concentration allows calibration of oxygen-deficiency alarms commonly used in confined space safety monitoring systems.

    Cylinder Specifications

    • Capacity: 120L

    • Fill Pressure: 1050 PSI

    • Valve Type: C-10

    • Cylinder Material: Aluminum

    • Gas Type: Reactive

    • Approximate Volume: 4.2 Cubic Feet

    The 120L high-capacity cylinder reduces replacement frequency and supports calibration across large fleets of portable gas detectors.

    Typical Applications

    • Confined space entry safety programs

    • Industrial safety departments

    • Oil & gas monitoring operations

    • Wastewater treatment facilities

    • Manufacturing plant safety compliance

    Compatible with C-10 demand flow regulators used across major portable 4-gas monitoring instruments.

    Why This Calibration Blend

    • Simulates oxygen-deficient confined-space atmospheres
    • Verifies LPG-equivalent combustible gas alarms
    • Confirms toxic sensor response for H₂S and CO
    • High-capacity cylinder for multi-instrument calibration programs

    Custom gas mixtures and alternate LEL equivalents are available upon request.

    Other Details

    Warranty 48 months

    Product Videos

    Custom Field

    Size 120L
    Gas Composition H2S / CO / CH4 / O2
    Cylinder Specification C-10
    Cylinder Material Aluminum
    Gas Reactivity Reactive
    Cylinder Pressure 1050 PSI
    Hydrogen Sulfide (H2S) Concentration 25 PPM
    Carbon Monoxide (CO) Concentration 50 PPM
    Methane (CH4) Concentration 1.62% (50% LEL LPG Equivalent)
    Oxygen (O2) Concentration 19.0%

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