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  • Purpose

    Contain and control liquid and vapor release.

  • Strategy

    Isolation and pressure management engaged in sync to control of risks and threats.

  • References

    All-Hazards Response Guide pages 13-16; page 52 for Pressure, Temperature and Release Estimator.

  • Command

    Lead Responder engages emergency system control SOP.

  • Safety

    Exits open, decon/eyewash stations operational, and IDLH escape respiratory equipment for in the hazard zone.

    • Definitions:

  • Emergency System Control Plan: A pre-arranged method of using system controls to reduce flow of ammonia, system pressure, emergency ventilation, and power source.

  • Hazard Assesment: A method of evaluationg the hazards, risks, and threats within the hazard zone where the emergency event is occurring. the ICS 215a and pages 2-4 of the All Hazardous Response Guide.

  • Hydraulic Shock: When cold ammonia liquid meets hot gas or when an unplanned slug of ammonia is propelled by high vapor pressure through the ammonia system.

  • Hydrostatic Pressure: When the ammonia liquid is trapped within the system ( usually by closing two valves that trap a liquid filled pipe line) with no hydraulic relief valve to relieve high pressure (1℉ increase of heat to the ammonia liquid will generate ~150psi).

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    THE 30-MINUTE COMMAND TEAM

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