TB 4 Flashcards
TB 4 Gas tank truck and trailer rollover
Regulated by DOT through national highway traffic safety admin, bureau of carrier safety and office of hazmat
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TB 4 Gas tank truck and trailer rollover
Primary responibility in this order
- life
- property
- environment
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TB 4 Gas tank truck and trailer rollover
2 axle trucks store 3000 gallons
3 axle trucks store 5000 gallons
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TB 4 Gas tank truck and trailer rollover
Tanks.
- longitudinal roll over protection along the top
- aluminum and are the thickest 3/16 inch on the bottom and gradually gets thinner.
- plumbing and valves for off-loading under tank
- manhole and vapor recovery valves on top.
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TB 4 Gas tank truck and trailer rollover
Non pressure tanks.
- may have gas and diesel in same tank
- double bullkheads are used for different products with different flash points
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TB 4 Gas tank truck and trailer rollover
Baffles
- do not remove plug; up to 200 gals of product may mix
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TB 4 Gas tank truck and trailer rollover
Tanker incident- no leak
- full PPE’s
- monitor with combustible gas indicator
- examin tank for integrity
- pressure releif valves on tank: 3-5 psi. Dont expect bleve
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TB 4 Gas tank truck and trailer rollover
Tanker incident- leak
- eliminate potential ignition source a minimum of 100 feet
- turn off ignition
- combustible gas indicators: check battery area: must be below 10LEL before disconnecting or disable battery
- set perimiters using monitors
- contain run off
- affected area, cover with foam and reapply as needed.
- IC needs to plan for appropriate amount of foam.
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TB 4 Gas tank truck and trailer rollover
Tanker incident- vehicle fire or tire fire- no product fire
- handle like standard fire using 1 1/2 hose.
- cool tank and keep visible wet
- spot uphill and upwind
- fuel tank is secondary hazard
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TB 4 Gas tank truck and trailer rollover
Tanker incident- fire involving spilled liquid or tanker
- May overwhelm the capabilities of first arriving fire units
- spot uphill and upwind
- secure water supply
- do not use plain water unless its to perform a rescue
- use foam lines
- dike to prevent product in storm drains
IC must decide to use - deffensive attack
- offensive attack
- or combo
- determain amount of foam concentrate, 15min with an additional 15 for maintenance blanket
- apply in a soft arc
- never flow water into tank, fire will spread
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TB 4 Gas tank truck and trailer rollover
Storm drains
- initial defensive action; prevent products from entering storm drains (dike or cover)
- Contact appropriate agency
- monitor areas for explosive or pool flammable vappors
- Hazmat TF and squads enhance perimiter surveying
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