27 - HazMat Flashcards
What is the definition of a Hazardous Material?
Any material or substance, which even in normal use poses a risk to health, safety,
property or the environment.
When do hazardous materials have the greatest potential for disaster?
Hazardous materials have the greatest potential for disaster while they are being
shipped.
What are the six steps for managing a HAZMAT incident?
H Hazard Identification
A Action Plan
Z Zoning
M Manage the Scene
A Assistance
T Termination
List six agencies that can be of assistance during a HAZMAT incident?
- Dispatch
- Owner / Producer of product
- HAZMAT response team
- EPS
- EMS
- Utilities
- CEDA
- Tow Trucks
- EPCOR
- CANUTEC (Canadian transportation emergency center) 24 hr. 365 a year more for
the rural dept. - CIC (coordination information center)provincial center 24 hr. 365 a year 422 9600
- COMPUTER software CCINFO, ALOHA (plume dispersion program)
- Emergency Response Guide
With respect to the O2 sensor:
Low Alarm @ 19.5% : High Alarm @ 23.0% : Sensor range 0 – 30 %
With respect to the CO sensor
● Low Alarm @ 25 PPM : High Alarm @ 50 PPM : Sensor range 0 – 500 PPM
With respect to the H2S sensor:
● Low Alarm @ 10 PPM : High Alarm @ 15 PPM : Sensor range 0 - 500 PPM
With respect to the LEL sensor:
Low Alarm @ 10% LEL : High Alarm @ 20% LEL: Sensor range 0 – 100 %
Or 0 – 9999 PPM
TWA
Time weighted average
STEL
Short term exposure limit
Stratification
layering of gases by vapour density
What gas does the MX4 use for LEL
Pentane
1% of atmosphere =
10,000 ppm
Flammable liquid definition
Flash point
temp at which a liquid produces enough vapours to maintain a flame
Vapour density
density of vapour relative to air (1)
flammability range
stoichiometric range in which the concentration of a fire is flammable or
specific gravity
density relative to water
3 methods of applying foam
rain on
bank off
roll down
What % of foam for hydrocarbons
1%
What concentration of foam for polar solvents
3%
