Tencent cloud computing Beijing Co. Inflow Inc. Amazon Technologies Inc. It is not intended for use on an out-of-control fire, such as one which has reached the ceiling , endangers the user i. Typically, a fire extinguisher consists of a hand-held cylindrical pressure vessel containing an agent which can be discharged to extinguish a fire.
Fire extinguishers manufactured with non-cylindrical pressure vessels also exist but are less common. There are two main types of fire extinguishers: stored-pressure and cartridge-operated. In stored pressure units, the expellant is stored in the same chamber as the firefighting agent itself. While these read-only online documents cannot be downloaded or printed, they are available anyone who wants to familiarize themselves with a code or check a requirement.
No categories have been created yet. Electronic monitoring can satisfy many be considered for one or more of the monthly inspection requirements currently within the standard, monitor the extinguisher at more frequent intervals if desired or when more frequent inspections are required, and create an electronically maintained record of the fire extinguisher. Additional text is needed to describe this device.
Updated the information on electronic monitoring in the annex to include other types. Definition: Film-Forming Foam 3. A solution that will form an aqueous film on liquid fuels. A solution based on fluorinated surfactants plus foam stabilizers to produce a fluid aqueous film for suppressing liquid fuel vapors.
A protein-foam solution that uses fluorinated surfactants to produce a fluid aqueous film for suppressing liquid fuel vapors. The foam formed acts as a barrier both to exclude air or oxygen and to develop an aqueous film on the fuel surface that is capable of suppressing the evolution of fuel vapors.
The foam produced with AFFF concentrate is dry chemical compatible and thus is suitable for combined use with dry chemicals. In addition to an air-excluding foam blanket, this solution also can deposit a vaporization-preventing film on the surface of a liquid fuel. This solution is compatible with certain dry chemicals. The defined term is only used in A. Definition: Travel Distance 3. The actual walking distance from any a point to the nearest fire extinguisher fulfilling hazard requirements.
For Class A hazards, travel distance is from any point to an extinguisher. For Class B, D, and K hazards, travel distance is measured from the hazard to an extinguisher or agent container for Class D. Travel distance will be affected by partitions, location of doorways, aisles, piles of stored materials, machinery, and other walking obstructions.
It is important to consider these obstructions as a person retrieving an extinguisher will need to walk around obstructions, which takes time. Listing Criteria for Class C 4. Identification of Contents 4. Obsolete Fire Extinguishers 4. There 2 Chemical foam excluding film-forming agents are currently numerous types of vaporizing 3 Vaporizing liquid e. Halon and 4 Cartridge-operated water Halotron 1. Though these agents may be 5 Cartridge-operated loaded stream categorized as Halogenated Agents, they still 6 Copper or brass shell excluding pump tanks joined by soft solder or rivets also fall under the broader general category of 7 Carbon dioxide extinguishers with metal horns "vaporizing liquids".
These extinguishers should be removed from service. Large-capacity dry chemical extinguishers of 10 lb 4. Areas Containing Oxidizers 5. Only water-type water or foam extinguishers shall be installed in areas where pool chemicals containing chlorine or bromine are stored containing oxidizers, such as pool chemicals. Multipurpose dry chemical fire extinguishers shall not be installed in areas where pool chemicals containing chlorine or bromine are stored containing oxidizers, such as pool chemicals.
Class C : involve energized electrical equipment. The maintenance of hose stations that are used in lieu of extinguishers is now addressed. The fire classification marking system is expanded to include markings for extinguishers rated for Class AC and Class AK, while removing information on obsolete equipment.
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Select, use, and maintain portable fire extinguishers that are appropriate to the hazard. Portable fire extinguishers are a critical first line of defense against small fires. For the best protection, be sure to select, use, and maintain extinguishers using the latest requirements as presented in the most up-to-date edition of NFPA Standard for Portable Fire Extinguishers.
The edition includes clarified provisions for: Electronic monitoring Obsolete extinguishers Extinguishers installed in areas containing oxidizers Extinguisher signs Extinguisher mounting equipment and cabinets Other recent changes expand the Standard's scope: A new requirement addresses maintenance of hose stations that are used in lieu of extinguishers.
The fire classification marking system is expanded to include markings for extinguishers rated for Class AC and Class AK, while removing information on obsolete equipment.
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