Critical Environment Technologies
    Traditional Refrigerants

    R-450A

    R134a/R1234ze

    R-450A (Solstice N13) is a non-flammable, reduced-GWP replacement for R-134a in chillers and other medium-pressure applications with minimal efficiency loss.

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    Key Information

    Essential safety and exposure information for R-450A

    Health Effects

    • Low acute toxicity. A1 safety classification (non-flammable
    • low toxicity). May displace oxygen in enclosed spaces.

    Common Sources

    • Centrifugal and screw chillers
    • medium temperature refrigeration

    Exposure Limits

    WEEL
    1,000 ppm (8-hr TWA)
    No OSHA/NIOSH limit
    No OSHA/NIOSH limit
    HFO blend
    HFO blend

    Regulatory Status

    EPA SNAP
    Acceptable substitute
    ASHRAE 34
    A1 Safety Classification
    GWP
    547 (Low-GWP alternative)
    ODP
    0
    DOT
    Class 2.2 Non-flammable, UN3163
    F-Gas Regulation
    Preferred alternative

    Detection Requirements

    Sensor Technology
    Infrared (NDIR)
    Detection Range
    0-1,000 ppm (typical)
    Response Time
    <60 seconds (T90)
    Cross-Sensitivity
    Test for blend-specific response
    Calibration
    Annual with target gas recommended

    Detection Solutions Coming Soon

    We're working on adding related products and applications for R-450A.