hazmat FF1
competing priorities, distractions and information overload may contribute to?
Losing situational awareness
Level A
Should be selected when greatest level of skin, respiratory and eye protection is required or conditions not known. SCBA used. vapor protective ( highest level of protection)
isolation distances
Solid-75ft liquid-150ft gas-330ft
Definition of Hazardous Material
Substance that can be dangerous to human health or the environment if not properly controlled
Which type of decontamination uses chemical or physical methods to thoroughly remove or neutralize contaminants from responders' PPE and equipment?
Technical decontamination
Radiation Protection
Time, distance, shielding
Level B
Used when concentrations have been identified and high level of respiratory protection but less skin protection is needed. splash resistant (non vapor resistant)
physical and chemical properties of matter
affects how it behaves and determines the harm states of matter ( solid, liquid., gas)
ionizing radiation types
alpha, beta, gamma, neutron
Warm zone
area where personnel and equipment decontamination and hot zone support take place; it includes control points for the access corridor and thus assists in reducing the spread of contamination.
cold zone
area where the Incident Command post and support functions are located, staging donning and doffing
Which spill control and confinement tactic may be done as a form of temporary mitigation for radioactive and biological substances?
blanketing/covering
Mission specific requiring CPC
chemical protective clothing is designed to shield and isolate a responder from chemical or biological hazards
CBRNE (used for weapons of mass destruction)
chemical, biological, radiological, nuclear, explosive
Flammable/ combustible liquid spills
class B materials, water is an ineffective extinguishing agent
CIA
command identification action plans
size up
considers all available factors that will affect an incident
DDD
decon disposal documentation
chemical attack
deliberate release of a toxic gas liquid or solid that can poison people and the environment
PPE ensembles selection/class
determining the appropriate ensemble is based on the mission of the hazard
cargo tank shut off
devices often located behind drivers cab at the left front corner of tank
contamination avoidance
dont walk through or touch product when possible
Where are shipping papers found?
drivers side of vehicle
greatest harm of mechanism
energy release(most dangerous) corrosivity and toxicity
4 chemical properties
flammability(most hazardous) reactivity corrosivity radioactivity
auto ignition temperature
fuel in air must be heated to initiate self sustained combustion
most dangerous hazmat incident?
gases are potentially the most dangerous incident expanding gases can displace oxygen
Incident action plan
helps prevent duplication of effort and uncoordinated
Placards are required for all hazardous materials except?
infectious substance
boiling point
is the temperature at which vapor pressure is equal to or greater than atmospheric pressure (liquid turns to gas)
biological hazards
largest threat is that they can be weaponized
PPE stress
most PPE inhibits the bodys ability to disperse heat and moisture leading to heat related injuries
controlling vapors with foam
must proportion and aerate all foam concentrates before use don't use water stream in conjunction with foam application it will destroy and wash away the foam blanket
Operational Strategies
nonintervention- no direct problems/ actions to fix. no action is safe defensive- responders seek to confine the emergency to a given area without directly contacting the hazardous material. (FRO level) Offensive(hazmat level)- responders take aggressive direct action on material
Safety data sheet (SDS)
prepared by the chemicals manufacturer or importer has all the information of hazardous material
Globally harmonized system
promotes common consistent criteria for classifying chemicals according to their hazard
PCP
protective equipment containment protective actions
SIN
scene control/size up isolation/deny entry notification
inspection, testing, maintenance records
show patterns about equipment failure that require excessive maintenance or is susceptible to failure
A white quadrant in the 6 o'clock position of the NFPA 704 System is used to indicate:
special hazards
illicit labs
stop. get out and report it to the authorities
breech
stressed beyond the limits of recovery and releases contents
Reactivity
the ability of a substance to chemically react with other materials. gas balance it needs to react
labels and placards for transportation is recommended by?
united nations (UN)
illegal hazmat dump
unlabeled and mixed
spill actions?
usually control actions are defensive
131 - DOT406, TC406, SCT306, MC306, TC306
- For flammable liquids (e .g ., gasoline, diesel) - Elliptical cross-section - Rollover protection at the top - Bottom outlet valves- MAWP between 3-15 psi**
128 Low pressure tank car (TC117, DOT117)
- For flammable liquids (e.g.,Petroleum crude oil, ethanol) - Protective housing separate from manway - Bottom outlet valve- Pressures usually below 25 psi
117 - Pressure tank car
- For flammable, non-flammable, toxic and/or liquefied compressed gases - Protective housing- No bottom fittings- Pressures usually above 40 psi
131 - General service tank car (low pressure)
- For variety of hazardous and non -hazardous materials - Fittings and valves normally visible at the top of the tank- Some may have bottom outlet valve - Pressures usually below 25 psi
incident levels
1. within the capabilities of the first responder(least serious) 2. beyond first responder level, hazmat team response has PPE and training 3. requires state? federal agencies (large scale incident)
The National Fire Protection Association (NFPA) _______ provides guidance for identifying hazards of materials and determining the degree of hazard
704
APIE
Analyze, plan, implement, evaluate guides responders actions during incident
control Zones
Areas at a hazardous materials incident that are designated as hot, warm, or cold, based on safety issues and the degree of hazard found there.
Which type of hazard can result in death by suffocation?
Asphyxiation hazards
types of hazmat exposures
Inhalation(most common) absorption, injection, ingestion
Which of the following is the U.S. emergency response center?
CHEMTREC
Level C
Full face or half mask APRs Chemical resistant clothing. liquid splashes or other direct contact will not adversely affect or be absorbed through any exposed skin. (NO SCBA)
Which of the following provide scene control and help minimize cross contamination at haz mat/WMD incidents?
Hazard-control zones
In the NFPA® 704 system, blue stands for what types of hazards?
Health hazards
BLEVE
Boiling Liquid Expanding Vapor Explosion. A rapid pressure increase in a confined vessel that results in a sudden release of pressure as the vessel ruptures
hot zone
The area immediately surrounding a hazardous materials spill/incident site that is directly dangerous to life and health. All personnel working in the hot zone must wear complete, appropriate protective clothing and equipment. Entry requires approval by the incident commander or other designated officer.
isolation perimeter
The designated crowd control line surrounding the Hazard Control Zone. can be expanded or reduced as needed
Gross decontamination
The initial phase of the decontamination process during which the amount of surface contaminant is significantly reduced. scrubbed with brush
Emergency decontamination
The physical process of immediately removing contamination of individuals in potentially life-threatening situations as soon as possible. lots of water, is set up at every hazmat incident
