PREVIEW OF HAZMAT TECHNICIAN CONTROL TECHNIQUES TRAINING PRESENTATION
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Transcript of PREVIEW OF HAZMAT TECHNICIAN CONTROL TECHNIQUES TRAINING PRESENTATION
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PREVIEW OF
HAZMAT TECHNICIANCONTROL TECHNIQUESPOWERPOINT TRAINING
PRESENTATION
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INTRODUCTION
Based upon your hazard analysis you may need to intercede and control the
release
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DO NOTHING ?
Can nature mitigate the release without any actions?
Winds can dissipate releaseFire can burn hazard into harmless gases
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CONTAINER STABILITY
Will stresses or release cause container to move, fall, or roll overCan cribbing stabilize it?
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HAVE THE RIGHT TOOLS
StaffingBack up teamsThe right resources Right size wrenches,
meters, handcarts
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MINIMIZE LEAKS
Have easily accessedleaks mitigated
Reduce leaks to minimum
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CONFINEMENT VSCONTAINMENT
ConfinementThose procedures taken to keep a
material in a defined or local areaContainment
Those procedures taken to keep a material in its container
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Adsorption vs. Absorption
Adsorption is a process where the molecule/particle adheres only to the surface of the medium while absorption is a process
where the molecule/particle is taken internally and not on the surface
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TECHNIQUES & EQUIPMENT
NeutralizationOverpackingPluggingPatchingAuxiliary closing devicesSealantsPre-engineered safeties
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OVERPACKING
Process of putting a leaking container inside a sealable larger container
Normally an 85 gallondrum with sealable top to overpack a55 gallon drum
Smaller containersare also used
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PLUGGING
Placing an object into openingThey can be commercially made, home
made or improvised on site
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AUXILIARY CLOSING DEVICES
Normally placed over leaking pressure vessel valves or manwaysLeaks are normally from missing or defective gaskets
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EQUIPMENT AQUISITION
Care must be taken to purchase appropriate equipment base upon hazards in response areaUse previous responses, “Firefighter Right to Know” & site inspections to base equipment list onShould be either disposable or easily decontaminated
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CRACKSFatigue or impact can cause cracks
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RUST
Causes thinning of tankwall creating small to large leaks
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PNEULATIC PLUG
Are inserted into pipe end and air is applied expanding plug to stop flow
Comes in diametersstarting at 4 inchesand larger
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CHLORINE CYLINDERS
Require special kits that can seal tanks or valves
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PRESSURE CYLINDERS
They are difficult to control due to pressure in tank
Often the best straightly is to let the tank bleed it
self off Pressures can be up to 10,000 PSI before leak
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INSPECTION
Prior to interventions the tank must be inspected entirely for additional leaks or cracks After any movement tank should be
re-inspected for unknown cracks or leaks
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MOVING TANK
To safer location for off loading or repairTank must not be leaking
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MITIGATION
Before offensive mitigation can take place you must decide
Offensive tactics are necessaryAll needed resources are on siteOperations can safely be accomplished
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SAFETY
Before any operation takes place safety measures must be in placeLarge containers may require ladders, safety
harnesses, or other climbing equipmentIdentify slip & fall hazardsContainer must be stable before mitigation takes place
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