Chapter 8 Flashcards
NFPA 1971 specifies the minimum design, performance, testing, and certification requirements for structural firefighting protective ensembles and ensemble elements that include garments, helmets, gloves, footwear, and interface components.
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Helmet ear covers, hoods, and other interfaces should have an average TPP of not less than 20.
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Heat fluxes due to direct flame contact have been measured in the range of 5.28 Btu/ft2 to 14.96 Btu/ft2.
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Helmets have limits on the amount of distortion acceptable after an exposure and are allowed up to 5 seconds for afterflame or glow.
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All sewing thread utilized in the construction of garments, DRDs, helmets, boots, and interface components should be tested for resistance to melting and should not melt at or below 500*F.
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Based on the tests that the PPE must pass, the gear is intended to survive temperatures of at least 500*F for 5 minutes.
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During the test, no components of the scba may fail or separate from the assembly, no afterflame can be sustained longer than 2.2 seconds, and positive pressure must be maintained within the facepiece throughout the test.
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The facepiece is required to maintain a positive pressure air supply within certain limits for a total of 24 minutes.
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The nozzle should be capable of operation after storage in high temperatures of 135F and after storage in low temperatures, with a dry nozzle, of -25F for 24 hours.
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Ladders (NFPA 1931) - Minimal thermal requirements at 300*F must retain 75 percent of the strength necessary to pass all test requirements.
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Materials such as pre-incident plans and maps should be developed per NFPA 1620, providing information regarding the structure, its contents, and occupancy.
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