HAZAMT Flashcards
What does the DANGER acronym for safe approach to HAZMAT incident stand for?
Do not enter smoke, gas or vapour clouds
Approach uphill & upwind
No closer then 70m
Gather info from safe distance
Examine more closely (only if necessity and in full PPE)
Respond according to info
What are the (9) dangerous goods classes?
(give examples of each)
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- Explosive (e.g. fireworks)
- Gases (e.g. LPG)
- Liquids (flammable) (e.g. acetone)
- Solids (flammable) (e.g. magnesium)
- Oxidising agents (e.g. ammonium nitrate)
- Toxic & Infectious (e.g. cyanide)
- Radioactive (e.g. uranium)
- Corrosive (e.g. hydrochloric acid)
- Miscellaneous (e.g. dry ice)
Know what the symbols look like also
Define hazardous materials?
- Substances or materials in a quantity or form that poses an unreasonable risk to health, safety or property when stored, transported and used in commerce.
What is listed on an EIP label?
Emergency Information Panel
- Chemical name
- UN number
- Hazchem code
- Dangerous goods class
- Emergency services contact number
- Contact number for specialist service
Define flammble range?
- The range of concentrations (from LEL to UEL) of a mixture of flammable vapor or gas in air that will flash or flame if the mixture is ignited.
- LEL = The minimum concentration of a gas or vapour that will combust in air (below this level, the mixture is too “lean” to burn).
- UEL = The maximum concentration of a gas or vapour that will combust in air (above this level, the mixture is too ‘rich’ to burn).
What are the (6) HAZMAT heirachy of infomation sources?
- Safe Approach (DANGER)
- HAZCHEM code
- ANZERG
- Hazmat Action Guide (HAG) sheet
- Safety Data Sheet (SDS)/Atmospheric monitoring
- Technical specialists
What is 1% of atmosphere in PPM?
10,000 PPM
What do CAS numbers refer to?
Pure chemical (not a mixture)
What are the (5) HAZMAT mitgation steps?
- Isolate
- Contain
- Recover
- Treatment
- Decon
What are the (4) levels of PPE?
- Level A – fully encapsulating gas tight suit and BA.
- Level B – non-encapsulating chemical protective suit (splash suit) and BA.
- Level C – non-encapsulating chemical protective suit (splash suit) and respirator or filter mask (FRV don’t use).
- Level D – normal work uniform that may include coveralls, boots, structural firefighting clothing.
What are the (4) routes of entry for toxic substances?
- Inhalation (90% of risk)
- Absorption (8% of risk)
- Ingestion (1% of risk)
- Injection (1% of risk)
What is the NFPA 704 HAZMAT Marking System?
It warns firefighters of the inherent hazards of a substance and, at a glance, the order of severity (0-4) of such hazards at an incident (clockwise from top):
* Red – ‘Flammability’
* Yellow – ‘Reactivity’
* White – ‘Special’
* Blue – ‘Health’
What are the (2) basic decontamination methods?
- Physical
- Chemical
The aim is to reduce contamination to a level that is As Low As Reasonably Achievable (ALARA).
What is an outer warning notice?
- Placards required to be displayed by workplaces using, storing or handling hazardous chemicals in tanks or in quantities exceeding prescribed quantities.
- The Outer Warning Notice is to be located at all entrances into the workplace from a public road/street and at every entrance of rail vehicles
What is a HAZCHEM emergency action code?
It provides emergency services personnel with information on initial actions to be taken to prevent the escalation of an incident.
spray/foam/dry agent, violent, PPC, contain/dilute
