Chapter 37 Product Control Flashcards
The process of applying a material that will soak up and hold a hazardous material in a sponge-like manner for collection and subsequent disposal.
Absorption
The process in which a contaminant adheres to the surface of an added material—such as silica or activated carbon—rather than combining with it (as in absorption).
Adsorption
A concentrate used for fighting fires on water-soluble materials and other fuels destructive to regular, AFFF, or FFFP foams, as well as for fires involving hydrocarbons. (NFPA 11)
Alcohol-resistant foam concentrate
A concentrate based on fluorinated surfactants plus foam stabilizers to produce a fluid aqueous film for suppressing hydrocarbon fuel vapors and usually diluted with water to a 1 percent, 3 percent, or 6 percent solution. (NFPA 11)
Aqueous film-forming foam (AFFF)
Those procedures taken to keep a material, once released, in a defined or local area. (NFPA 472)
Confinement
The actions taken to keep a material in its container (e.g., stop a release of the material or reduce the amount being released). (NFPA 1072)
Containment
The procedures, techniques, and methods used in the mitigation of hazardous materials/weapons of mass destruction (WMD) incidents, including containment, extinguishment, and confinement. (NFPA 1072)
Control
The product-control process used when liquid is flowing in a natural channel or depression, and its progress can be stopped by constructing a barrier to block the flow.
Damming
The placement of materials to form a barrier that will keep a hazardous material in liquid form from entering an area or that will hold the material in an area.
Diking
The process of adding a substance—usually water—to weaken the concentration of another substance.
Dilution
The process of redirecting spilled or leaking material to an area where it will have less impact.
Diversion
A protein-based foam concentrate to which fluorochemical surfactants have been added. (NFPA 402)
Fluoroprotein foam
A foam created by pumping large volumes of air through a small screen coated with a foam solution. Some ____-________ ____ have expansion ratios ranging from 200:1 to approximately 1000:1.
High-expansion foam
A protein-based foam concentrate that is stabilized with metal salts to make a fire-resistant foam blanket. (NFPA 402)
Protein foam
The stage of a hazardous materials incident after imminent danger has passed, when clean-up and the return to normalcy have begun.
Recovery phase