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NFPA 10 Chapter 3
| Term | Definition |
|---|---|
| AHJ (Authority having Jurisdiction) | An organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, an installation, or a procedure. |
| Labeled | 1. has a label, symbol, or other identifying mark of an organization 2. is acceptable to the authority having jurisdiction 3. maintains periodic inspection of labeled equipment or materials 4. labeling indicates compliance with standards |
| Listed | 1. is acceptable to the authority having jurisdiction 2. maintains periodic inspection of labeled equipment or materials 3.meets appropriate designated standards or has been tested |
| Shall | Indicates a mandatory requirement. |
| Should | Indicates a recommendation or that which is advised but not required. |
| Carbon Dioxide | A colorless, odorless, electrically nonconductive inert gas that is a suitable medium for extinguishing Class B and Class C fires |
| Dry Chemical | A powder composed of very small particles, usually sodium bicarbonate, potassium bicarbonate, or ammonium phosphate-based |
| Wet Chemical | an aqueous solution of salts that forms an extinguishing agent. |
| Clean Agent | Electrically non-conducting, volatile, or gaseous are extinguishant that does not leave a residue upon evaporation. |
| Dry Chemical Closed Recovery System | A system that is made to keep foreign material out of the agent being recovered and visually inspects the recovered agent for contaminants. |
| Halogenated Closed Recovery System | The transfer of halogenated agents between fire extinguishers, supply containers, and recharge & recovery containers so that the halogenated agent can't escape |
| High-Pressure Cylinder | Cylinders containing nitrogen, compressed air, carbon dioxide, or other gases at a pressure higher than 500 psi (3447 kPa) at 70°F (21°C). |
| Low-Pressure Cylinder | Cylinders containing fire extinguishing agent, nitrogen, compressed air, or other compressed gases at a pressure of 500 psi (3447 kPa) or lower at 70°F (21°C). |
| Dry Powder | Solid materials in powder or granular form designed to extinguish Class D combustible metal fires by crusting, smothering, or heat-transferring means. |
| Electronic Monitoring | Method of electronic communication (data trans‐ mission) between an in-place fire extinguisher and an electronic monitoring device/system. |
| Extinguisher Bracket | Extinguisher retention device designed to mount and secure a specific extinguisher model onto various surfaces by incorporating releasable straps or bands to secure the fire extinguisher. |
| Extinguisher Cabinet | An identifiable and readily accessible fire extinguisher housing device designed to store and protect fire equipment. |
| Extinguisher Hanger | Extinguisher mounting device designed for mounting a specific extinguisher model onto stationary vertical surfaces. |
| Extinguisher Inspection | A quick check that a fire extinguisher is in its designated place, that it has not been actuated or tampered with, and that there is no obvious physical damage or condition to prevent its operation. |
| Extinguisher Maintenance | Examination of the extinguisher to give maximum assurance that the ext. will operate effectively & to determine if there's physical damage, if any repair or replacement is necessary, & if hydrostatic testing/internal maintenance is needed. |
| Aqueous Film-Forming Foam (AFFF) | A solution based on fluorinated surfactants plus foam stabilizers to produce a fluid aqueous film for suppressing liquid fuel vapors. |
| Film-Forming Fluoroprotein Foam (FFFP) | A protein-foam solution that uses fluorinated surfactants to produce a fluid aqueous film for suppressing liquid fuel vapors. |
| Flammable Liquids of Appreciable Depth | those with a depth greater than 1 ∕4 in. (6.3 mm). |
| Halogenated Agents | Halocarbons & Halons |
| Hydrostatic Testing | Pressure testing of the extinguisher to verify its strength against unwanted rupture. |
| Loaded Stream Charge | A water-based extinguishing agent that uses an alkali metal salt as a freezing point depressant. |
| Mild Steel Shell | All steel shells other than stainless steel and steel shells used for high-pressure cylinders. |
| Extinguisher Service Pressure | The normal operating pressure as indicated on the nameplate or cylinder of a fire extinguisher |
| Factory Test Pressure | The pressure shown on the nameplate at which a shell was tested at time of manufacture. |
| Pressurized Flammable Liquid Fires | Fires resulting from liquids that are forced, pumped, or sprayed. |
| Recharging | The replacement of the extinguishing agent (also includes the expellant for certain types of fire extinguishers). |
| Travel Distance | The actual walking distance from a point to the nearest fire extinguisher fulfilling hazard requirements. |
| Wetting Agent | A concentrate that, when added to water, reduces the surface tension and increases its ability to penetrate and spread |
| Cartridge/Cylinder-Operated Fire Extinguisher | A fire extinguisher in which the expellant gas is in a separate container from the agent storage container. |
| Rechargeable Fire Extinguisher | A fire extinguisher capable of undergoing complete maintenance, including internal inspection of the pressure vessel, replacement of all substandard parts and seals, and hydrostatic testing |
| Self-Expelling Fire Extinguisher | A fire extinguisher in which the agent has sufficient vapor pressure at normal operating temperatures to expel itself |
| Stored-Pressure Fire Extinguisher | A fire extinguisher in which both the extinguishing agent and expellant gas are kept in a single container, and that includes a pressure indicator or gauge |
| Water Mist Fire Extinguisher | A fire extinguisher containing distilled or deionized water and employing a nozzle that discharges the agent in a fine spray. |
| Water-Type Fire Extinguisher | A fire extinguisher containing water-based agents, such as water, film-forming foam agents (AFFF, FFFP), antifreeze, loaded stream, and wet chemical. |
| Wheeled Fire Extinguisher | A portable fire extinguisher equipped with a carriage and wheels intended to be transported to the fire by one person. |
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erinrab
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