Chapter 5: Identifying containers and predicting behavior Flashcards
General emergency behavior model. (GEBMO)
Model used to describe how hazardous materials are accidentally released from their containers and how they behave after the release
When A container is stressed beyond its _______, it opens or breaches and releases its contents.
Limits of recovery
Triangular shaped pattern of a hazardous material with the point Source at the breach and a wide base down range.
Cone
And engineered valve or other device used to control or limit the pressure in the system or vessel, often by venting excess pressure
Pressure relief device (PRD)
The _________ Indicates the standard to which a tank car was built.
Specification marking
____________ Are only used to transport materials with low levels of radioactivity
Excepted packagings
Cylinders
Pressure vessel designed for Pressures higher than 40 psi
I’m going evaluation of influential factors at the scene of an incident
Size up
When evaluating container stress consider the following
Type of container
Product in the container
Type and amount of stress
Potential duration of the stress
Breaks the container into two or more relatively large pieces fragments or large tears.
Runaway cracking
What is it called when the containers fails?
Release
Pressure exerted by a stationary column of water
Head pressure
The dispersion of material is sometimes referred to as?
Engulfment
Irregularly shaped pattern of an airborne hazardous material, Generally composed of gases and vapors
Plume
How are releases is classified?
According to how fast they occur.
