hmt 1c 24-1 u chapter 24 –fixed facility incident consideration haz mat incident considerations
TRANSCRIPT
HMT 1C 24-2
Fixed Facility Incident Consideration Session Objectives
– Identify the impact of fire and safety features on the behavior of the products during an incident
– Explain the significance of fire and safety features in the risk assessment process
– Identify methods for determining the pressure and amount of lading in facility containers
HMT 1C 24-3
Codes, Ordinances and Regulations
The Uniform Fire Code Uniform Building Code NFPA 704 - Hazard identification
system
HMT 1C 24-4
Codes, Ordinances and Regulations Health and Safety Code Locally adopted ordinances SARA, Title III
– Emergency planning, community right to know and emergency notification
HMT 1C 24-5
Pre-Plan
– Type(s) and amount(s) of materials– The hazards of each material– Potential health and environmental
effects– In-house protection systems, utilities, and
facility layout– Response routes, points of entry, barriers,
emergency escape routes, and other access information
HMT 1C 24-6
Pre-Plan
Identify potential exposure problems Identify potential avenues of spread Determine local capabilities and
resources
HMT 1C 24-8
Sources of information include:
Building permits Inspection reports Hazardous materials permits Past incident reports Hazardous Materials Management Plan
HMT 1C 24-9
Hazardous Materials Management Plans (HMMPs)
Developed and maintained by personnel at the fixed facility
Must be given to the agency having emergency response authority
Required
HMMP
HMT 1C 24-10
HMMP Must Contain:
– General Information – Facility Storage Map– Hazardous Materials Inventory Statement– Separation of materials– Monitoring Program– Record Keeping Forms– Emergency Equipment– Emergency Response Plans
HMT 1C 24-11
Pre-Plans
A pre-plan usually consists of two parts:– Quick access information– Plot plan
Pre-plans should be set up in a standard format for all fixed facilities– exercise the plan
HMT 1C 24-12
Fixed Facility Systems
Containers and tanks Piping, valves and fittings Signage Security Ignition sources Shelf storage Spill control, drainage and containment Ventilation
HMT 1C 24-13
Fixed Facility Systems
Separation from incompatible hazardous materials
Hazardous materials storage cabinets Fire extinguishing systems Explosion venting or suppression Standby power Limit controls Manual alarm
HMT 1C 24-14
Fixed Facility Systems
Supervision Emergency vehicle access Toxic gas storage Gas detection Local gas shut off Automatic shut off Enunciator panel
HMT 1C 24-16
Fixed Facility Containers
Non-bulk containers Intermediate bulk containers Fixed storage tanks
– Underground tanks– Above ground tanks
HMT 1C 24-17
Hazardous Materials Storage Tank Regulations Uniform Building Code (UBC) Uniform Fire Code (UFC) Occupational Safety and Health
Administration (OSHA) Locally adopted Hazardous Materials
Storage Ordinances (HMSO)UBC
UFC
OSHA
HMSO
HMT 1C 24-19
Vertical Atmospheric Fixed Roof Tanks Wider then they are tall Fat roof or an inverted cone shaped roof May be designed with weak roof-to-shell
attachments Usually contain flammable, combustible
and corrosive liquids
HMT 1C 24-20
Floating-Roof Tanks
Very large tanks Roofs float on liquid inside
– limits the vapor space Designed for flammable and
combustible liquids that readily vaporize
HMT 1C 24-21
Covered Floating-Roof Tanks
Fixed roof with a inner floating roof Can be identified by large vent openings
around the top of the tank Designed to contain flammable and
combustible liquids
HMT 1C 24-22
Vertical Low Pressure Fixed-Roof Tanks Taller than they are wide Dome top
– designed to accommodates changes in vapor pressure
Operate at pressures up to 15 psig Used for flammable and combustible
liquids and other types of haz mats
HMT 1C 24-23
Horizontal Above Ground Low Pressure Storage Tanks Above ground tanks that lay horizontally Potential problems include:
– possible failure of supports during a fire– possible inadequate venting
Generally contain gasoline, naphtha or fuel oil
HMT 1C 24-24
Pressure Horizontal Tank
Cylindrical with rounded ends Usually mounted horizontally on
concrete foundation walls or legs Generally painted white or another
highly reflective color Contain liquefied gases May have built-in protection systems
HMT 1C 24-25
Spherical Tanks
Ball-like shape Contain high pressure gases Painted white or other reflective color
Pressure relief valve at the top
– No pressure relief valve may indicate cryogenic liquids
HMT 1C 24-26
Cryogenic Liquid Tanks
Taller than they are wide, and have domed tops
Rest on legs rather than directly on the ground
Store cryogenic liquids
HMT 1C 24-27
Underground Storage Tanks
Underground storage tanks are at least partially below ground
Advantages - protected from fire and mechanical damage
Disadvantage - cannot be visually inspected for leaks
Subject to corrosion Contain LPG, gasoline or fuel oil
HMT 1C 24-28
Bulk Storage Facilities
Safety features that can be found at Bulk Storage Facilities:– Tank Spacing– Drainage Control and Diking– Venting Systems– Monitoring and Detection Systems– Fire Protection Systems– Transfer Options
HMT 1C 24-29
Fixed Facility Haz Mat Incident Management Review pre-plans while en route Determine the best approach route and
notify other responding units Establish Command Conduct safe size-up Contact site personnel for information
HMT 1C 24-30
Fixed Facility Haz Mat Incident Management Determine if a rescue is involved Isolate the area Request assistance as needed Establish control zones Have responsible party respond Identify hazards present at the site
HMT 1C 24-31
Fixed Facility Haz Mat Incident Management Alert hospitals if necessary Consider protective actions Establish the level of PPE Contain the material using appropriate
measures Decontaminate personnel, victims and
equipment Owner is responsible for clean up