Virginia HAZMAT OPS

Pyrophoric

Materials that ignite spontaneously in air.

Lower Explosive Limit (LEL)

the lower limit where there are not enough vapors in the air for the ignititon to occur.

Upper Explosive Limit (UEL)

when there is too much vapor in the air and too little oxygen for it to burn. Ignition will not occur.

BLEVE

Boiling liquid expanding vapor explosions.

What are the Possible WMD targets?

-Churches

-Federal buildings and Facilities

-Doctors offices and facilities

-Research facilities

-Industrial facilities

-Sports Arenas and areas of large gantherings

-tourest attractions

-areas of special significance

The best means of protecting lives, critical systems, property, or the enviorment is to

prevent hazardous materials incidents from occuring.

Hazardous materials fall into what 3 physical states?

Gas, Liquid, Solid

Gas

Any material that has a boiling point less than 68 degrees.

Liquid

Any material that has a boiling point greater than 68 degrees.

Solid

is any material that has a melting point above ambiant (room) temp.

Vapor Pressure

is the pressure the vapor of a liquid exerts on its container.

Solubility

a materials ability to dissolve in water or another specific solvent.

Routes of Exposure

Inhalation, Absorption, Ingestion, Injection

Threshold Limit Value/ Time Weighted Average (TLV/TWA)

the max concentration a person can be exposed to for 8 hours a day/40 hours per week.

Threshold Limit Value/Short Term Exposure Limit (TLV/STEL)

the max concentration a person can be exposed to for for 15mins with a 60 min rest period in between 4 times a day.

Permissable Exposure Limit

Same as TLV/TWA except it applies to only the "worker". OSHA

IDLH

Immediately Dangerous to Life and Health

LC50

the concentration of a dust vapor mist or gas in the air that kills 50% of the test population (inhilation)

LD50

the amount or "dose" of an injected or ingested material that kills 50% of the test population.

PPM and Mg/Kg are measures of what?

Toxicity

Asphyxiants

a toxic material that interferes with the oxygenation of tissue. Breathing.

Flash Point

the tempature at which a material will generate enough vapors to ignite in the presence of an outside ignition source (flame or spark) but will not sustain combustion.

NFPA 704 identifies what 4 hazards?

Health, Fire, Reactivity, Special Hazard

9 OSHA required info required on a MSDS (Material Safety Data Sheet)

-chemical property and company info

-ingredients/composition

-first aid measures

-fire fighting measures

-handling and storage

-exposure control/personal protection

-physical and chemical properties

-stability and reactivity

-toxicological info

How do you know if a liquid will float or sink?

materials with specific gravity less then 1 float

materials with specific gravity geater then 1 will sink.

How do you know if a vapor will rise or sink?

vapor density less then 1 will rise

vapor density more then greater will fall

Which physical state is the most difficult to control?

Gas

Six WMD Classes

-Nerve

-Vesicants (blister)

-Blood

-Choking

-Irritants

-Biological and Toxins

Where can you find the hazard classes?

ERG page 6

Where would the bill of lading be located?

drivers side door pocket, or on drivers seat

Bill of lading

Highway, Driver

Way Bill and Consist

Rail, engineer/conductor, way bill may not be available, consist will be in cab of lead engine

Air Bill

Air, Pilot, Cockpit

Dangerous Cargo Maifest

Marine, Captain, Pilot house

Hazardous Waist Manifest

highway, rail, and marine, as listed above, as listed above.

Detection

process by which emergency responders discover the presence of a hazardous material.

Corrosive

Materials that exhibit the unusual characteristic of causing visible destruction to living tissue or metals.

Monitoring

The process by which emergency responders measure the amount of material present in an area at a certain time.

Combustible Gas Indicators

CGIs, sensors used to determine the flammability of vapors in the atmosphere.

Exposure

The process by which an individual comes into contact with that material

Emergency DECON

The immediate institution of physical decon of a person who has been contaminated with potentially life treating materials without the establishment of a formal contamination reduction corridor

FLUSH, STRIP FLUSH

Mass DECON

Immediate physical DECON of a large number of people who have been contaminated.

STRIP, FLUSH, COVER

Action Level

Admin reference points used during incidents. When reached a specific action or group of actions should be met to prevent further exposure or harm

Contaminated

The proses of transferring and depositing a material from its source to systems or equipment.

Air Purifying Respirator (APR)

Used for CERFP and by Army CBRN. Cannot use in less then 19.5% oxygen (SCBA will then be required)

4 Levels of Decontamination

- Gross DECON

- Emergency DECON

- Mass DECON

- Technical DECON

Chemical Protective Clothing (CPC)

used to provide specific chemical protection to the emergency responder.

Harm

the damage to an object that has been exposed to a hazardous material or its released energy.

6 Types of Harm

-Thermal

-Radiation

-Asphyxiation

-Chemical

-Ethilological

-Mechanical

4 Levels of PPE

A (fully encapsilating and SCBA), B (chemical suit and SCBA), C (APR and chemical suit). D

Hazard Zones

Hot: area of highest contamination

Warm: contamination reduction corredor/area of reduced contamination

Cold: area free on contamination