HAZMAT Response Properties & Actions Flashcards
Absorption
The process of applying a material (an absorbent) that will soak up and hold a HM in a sponge-like manner, for collection and disposal.
Confinement
The process of keeping a HM on the site or within the immediate are of the release.
Containment
Actions relating to stopping a HM container from leaking, such as patching, plugging, or righting the container.
Damming
A process used when liquid is flowing in a natural channel or depression and its progress can be stopped by blocking the channel.
Diking
The placement of materials to form a barrier that will keep a HM in liquid form from entering an area, or that will hold the material in an area.
Dilution
The process of adding some substance – usually water – to a product to weaken its concentration.
Diversion
Redirecting spilled or leaking material to an area where it will have less impact.
Recovery Phase
The stage of HM incident after the imminent danger has passed, when clean-up and the return to normalcy have begun.
Remote Shut-off Valves
Device designed to retain a HM in its container.
Retention
The process of purposefully collecting HMs in a defined area. It may include creating that area – by digging, for instance.
Shelter-in-place
A method of safeguarding people in a hazardous area by keeping them in a safe atmosphere, usually inside structures.
Vapor dispersion
The process of lowering the concentration of vapors by spreading them out.
Vapor Suppression
The process of controlling vapors given off by hm’s, thereby preventing vapor ignition, by covering the product with foam or other material or by reducing the temperature of the material.
