Hazmat Ch. 7

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Author:
eaglejay
ID:
108986
Filename:
Hazmat Ch. 7
Updated:
2011-10-15 10:38:19
Tags:
HazMat
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Description:
Terrorism attacks, criminal activities, and disasters
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  1. First responders are most likely to encounter which type of terrorist incident?
    Explosive
  2. What is a blast pressure wave? How many phases?
    • Produced by expanding gases and can demolish virtually anything
    • There are 2 phases, positive and negative
    • Negative last 3 times longer than positive
  3. What are the 5 classifications of explosives?
    • High explosives-decompose extremely rapidly(detonation) examples are plastic explosives, nitrogylcerin, TNT, blasting caps, dynamite, ammonium nitrate and fuel oil(ANFO)
    • Low explosives- Decompose rapidly but do not produce an explosive effect unless confined; example black powder; fireworks,bullets
    • Primary explosives- easily initiated and highly sensitive to heat
    • Secondary explosives- designed to detonate only under specific circumstances usually by activation energy from primary explosive example TNT
    • Tertiary explosives- very sensitive materials based on ammonium nitrate, usually requiring detonation froma secondary explosive
  4. Potassium Chlorate has what percentage of power of TNT?
    83%
  5. Pipe bombs
    • 4 to 14 inches
    • steel or pvc
    • black powder or match heads
    • can throw shrapnel up to 300 ft
  6. FBI (ALERT)
    • Alone and nervous
    • Loose and bulky clothing
    • Exposed wires
    • Rigid midsection
    • Tightended hands
  7. Special response precautions when responding to explosives/IED's
    • Do not use 2 way radios, cell phones, MDT's(mobil data terminal) within a minimum of 300 feet
    • Never touch or handle a suspected device
    • Use intrinsically safe devices
  8. Name 6 different types of chemical attacks
    • 1. nerve agents
    • 2. blister agents
    • 3. blood agents
    • 4. riot control agents
    • 5. choking agents
    • 6. TIM's(toxic industrial materials)
  9. Describe nerve agents
    • Attack the nervous system by affecting transmission of impulses. *Most toxic of chemical warfare agents
    • They are stable, easily dispersed, highly toxic and have rapid effects when absobed thru the skin or respiratory system
    • Generally clear and odorless
    • Examples: Tabun, Sarin, Soman, Cycloheyl sarin, V-agent
    • Antidotes=auto-injectors 2mg atropine
  10. Describe Blister agents
    • (vesicants) burn and blister the skin or any other part of the body they contact. Likely to produce more casualties rather than fatalities
    • Mustard agents, Arsenical vesicants, Halogenated oximes
  11. Describe blood agents
    • Are chemical asphyxiants that interfer with the body's ability to use oxygen either by preventing red blood cells from carrying oxygen or by inhibiting the ability of cells to use oxygen for producing the energy required for metabolism
    • Arsine=garlic odor
    • Hydrogen cyanide=bitter almonds
    • Cyanogen chloride=pungent, biting odor
  12. Describe Choking agents
    • chemicals that attack the lungs
    • Chlorine-heavier than air, pungent irritaing odor like bleach, gas is usually greenish yellow
    • Phosgene-colorless nonflammable gas that has odor of fresh cut hay. Boiling point 47F much heavier than air
  13. Describe riot control agents
    • sometimes called tear gas or irritating agents
    • compounds that temporarily make people unable to function by causing immediate irritation to eyes, mouth, nose, lungs and skin
  14. Describe Biological attacks
    • May be viral agents, bacterial agents, rickettsias(ticks+fleas)
    • Biological toxins
  15. What are Tim's?
    • Toxic Industrial Materials
    • produced in quantities exceeding 30 tons
    • 3 hazard classes
    • High-widely produced stored or transported
    • Medium-High + low ranks
    • Low-not likely hazard
  16. Chemical agents have a rapid or slow onset?
    Also Biological?
    • Chemical=rapid
    • Biological=slow

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