Hazmat 2 Flashcards
UN hazard class 1
Explosives
UN hazard class 2
Gases
UN hazard class 3
Flammable liquids
UN hazard class 4
Flammable solids
UN hazard class 5
Oxidizing substances and organic peroxides
UN hazard class 6
Poisons and infectious substances
UN hazard class 7
Radioactive materials
UN hazard class 8
Corrosive substances
UN hazard class 9
Miscellaneous dangerous substances and articles
Technical decon
Uses chemical or physical methods to thoroughly remove or neutralize contaminants from responders PPE and equipment. Also may be used on incident victims in non life threatening situations. Operations level responders must do technical decon under the guidance of a hazmat technician
Specific gravity
Materials with a specific gravity less than 1 will float in or on water
Materials with a specific gravity greater than 1 will sink in water
Direct evidence
Facts found through the five physical senses to which a person can attest without further support
Circumstantial evidence
Facts which support presumptions or inferences formed from direct or physical evidence
Physical evidence
Material objects evaluated during an investigation which tend to prove or disprove facts
Cryogen
Gas that is converted into liquid by being cooled below -130 degrees F. Also know as refrigerated liquid
APIE process steps
- Analyze the incident
- Plan the initial response
- Implement the response
- Evaluate progress
Common response objectives at hazardous materials incidents
-isolation
-notification
-identification
-protection
-rescue
-spill control/ confinement
-leak control/ confinement
-crime scene and evidence preservation
-fire control
-recovery/ termination
Alpha
-can be stopped by a sheet of paper
-do not penetrate skin
-harmful if ingested
Alpha
Energetic positively charged particles emitted from the nucleus during radioactive decay that rapidly lose energy when passing through matter
Beta
Fast moving positively charged protons or negatively charged electrons emitted from the atoms nucleus during radioactive decay
Beta
-capable of penetrating the skin
-more hazardous when inhaled or ingested
-stopped by a layer of clothing, thin sheet of metal, or thick plexiglass
-travel further than alpha but cause less damage over equally traveled distances
Gamma
High energy photons, often accompany the emission of alpha or beta particles from the nucleus. Weightless packets of energy like visible light and X-rays
Gamma
-can easily pass through the human body or be absorbed by tissue
-concrete, earth, and lead may shield against radiation
Neutron
Particles that have a physical mass but no electrical charge. Are highly penetrating
Neutron
-soil moisture density gauges are a common source
-found at operating nuclear power plants
-shielding requires material with high amounts of hydrogen, such as oil, water, and concrete
