14 cfr 25 appendix f part ii

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Weighing Device - A device must be used that with proper procedures may determine the before and after test weights of each set of seat cushion specimens within 0.02 pound (9 grams). The burner to be used in testing must -. Use propane (liquid petroleum gas - 2.1 UN 1075) for the radiant panel fuel. All droppings falling from the cushions and mounting stand are to be discarded before the after-test weight is determined. (F) Center the 2 transducers on opposite sides of the plates at equal distances from the plate. This is not recorded as part of calibration. 1/2-inch (13 mm) nut. (iii) Moisture barrier film. (6) Forty-five degree test. (f) Smoking is not allowed in lavatories. (2) The seat bottom cushion specimen must be 18 ± Optional Fourteen-Hole Upper Pilot Burner. 14 CFR § 25.853 - Compartment interiors. 3/min (2.29 m 1/8 inches (508 ±3 mm) deep by 4 ± Except as noted below, the specimen thickness must be no thicker than the minimum thickness to be qualified for use in the airplane. The average of the five values must be used as the calibration factor. Each seat cushion must meet the following criteria: (1) At least three sets of seat bottom and seat back cushion specimens must be tested. The clamp surfaces should measure 1 inch by 2 inches (25 by 51 mm). (iii) Have a 12 inch (305 mm) burner extension installed at the end of the draft tube with an opening 6 inches (152 mm) high and 11 inches (280 mm) wide as shown in Figure 3 of Part II of this appendix. Ceiling and sidewall liner panels may be tested individually provided a baffle is used to simulate the missing panel. Specimen set means two insulation blanket specimens. c. Section 29.853 of Part 29 of the FAR - Compartment Interiors. (5) If the calorimeter and thermocouples do not read within range, repeat steps in paragraphs 1 through 4 and adjust the burner air intake damper until the proper readings are obtained. This burner may be used in lieu of the standard three-hole burner described in paragraph (b)(8)(ii) of this part IV. (2) Mount the test specimen on the test stand shown in Figure 1 in either the horizontal or vertical position. The thermocouple rake and the calorimeter should be used frequently to maintain and record calibrated test parameters. 1/4 inches (292 mm ±6mm) wide by 23 inches (584mm) long in order to fit properly in the sliding platform housing and provide a flat, exposed surface equal to the opening in the housing. 1/8 inches (610 ±3 mm). (d) Specimen conditioning. Use the clamps to hold the blankets in place in both of the outer vertical formers, as well as the center vertical former (4 clamps per former). 14 CFR 25 Appendix F, Part I纺织品垂直燃烧测试由中科易朔(厦门)防火技术服务有限公司提供,主要产品是14,CFR,25,14 CFR 25 Appendix F, Part I纺织品垂直燃烧测试 – 标准名称 14 CFR 25, Appendix F, Part I (vertical test) 14 CFR 25, Appendix F, Part I垂直燃烧测试 14 CFR 25 Appendix F, Part I纺织品垂直燃烧测试 – 指..。 (A) Foil diameter must be 0.25 ±0.005 inches (6.35 ±0.13 mm). Appendix E to Part 25. The upper end of the specimen must pass over a pulley or rod and must have an appropriate weight attached to it so that the specimen is held tautly throughout the flammability test. A recording potentiometer or other suitable calibrated instrument with an appropriate range must be used to measure and record the outputs of the calorimeter and the thermocouples. (4) The specimens must be conditioned at 70 ±5 °F (21 ±2 °C) 55%±10% relative humidity for at least 24 hours before testing. (ii) Attach a Electronic Code of Federal Regulations (e-CFR), CHAPTER I - FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION, PART 25 - AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES. Adjust the mounting as necessary to ensure that the calorimeter face is parallel to the exit plane of the test burner cone. The pilot burner must be at a 27° angle with the sample and be approximately For propeller-driven airplanes with a measured flyover noise level obtained in accordance with the measurement procedures prescribed in Appendix F of 14 CFR part 36 without the performance correction defined in Sec. Mount the calorimeter in a 6- by 12- ±0.125 inch (152- by 305- ±3 mm) by 0.75 ±0.125 inch (19 mm ±3 mm) thick insulating block which is attached to the heat flux calibration rig during calibration (figure 4). * 12 second vertical ignition IAW 14 CFR 25.853(a), Amendment 25-83, Appendix F, Part I, Paragraph (a)(1)(ii) when tested per 14 CFR Part 25 … Rotate the burner to apply the flame to the specimen and simultaneously start the timing device. (G) The distance of the calorimeter to the plate must be no less than 0.0625 inches (1.6 mm), nor greater than 0.375 inches (9.5 mm). Combustion is initiated by piloted ignition. 2 ) as a function of time, either graphically or tabulated at intervals no greater than 10 seconds. 7/8 inches (71 mm). 1/2 inches (292 mm) from the right side of the chamber wall, and is 2 inches (51 mm) below the radiant panel. The total air flow to the equipment is approximately .04 m The average burn length may not exceed 6 inches and the average flame time after removal of the flame source may not exceed 15 seconds. Title 14: Aeronautics and Space PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES Subpart G—Operating Limitations and Information. (3) Construction. (4) Test specimen mounting frame. (B) The standardized transducer must meet the specifications given in paragraph VI(b)(6) of this appendix. The pilot burner must be a straight length of .25 inch (6.3 mm) O.D., .03 inch (0.8 mm) wall, stainless steel tubing that is 14 inches (360 mm) long. 1/8 inch (3.2 mm) flat stock steel and have an opening that accommodates a This method provides a laboratory test procedure for measuring the capability of cargo compartment lining materials to resist flame penetration with a 2 gallon per hour (GPH) #2 Grade kerosene or equivalent burner fire source. 2). The test burner must be mounted on a suitable stand to position the exit of the burner cone a distance of 4 ± Measure the airflow of the test chamber using a vane anemometer or equivalent measuring device. The right bottom flange must be flush with the sliding platform. The gas flow to the burner must be increased to the higher preset flow and allowed to burn for 2.0 minutes, and the thermopile voltage must be measured. Adjust the damper such that the air velocity is in the range of 1550 to 1800 ft./min. (ii) Have an 80-degree spray angle nozzle nominally rated for 2.25 gallons/hour at 100 psi; (iii) Have a 12-inch (305 mm) burner cone installed at the end of the draft tube, with an opening 6 inches (152 mm) high and 11 inches (280 mm) wide, as shown in Figure 3; and. Provide seven See figure 7. The propane flow must be adjusted via gas pressure through an in-line regulator to produce a blue inner cone length of ±100 °F. The FAA requires this test for all passenger seating on privately owned or … The procedure must be repeated if the percent relative standard deviation is greater than 5 percent. When the gas/air ratio and the flow rate are properly adjusted, approximately .25 inch (6 mm) of the flame length appears yellow in color. 1/8 (191 mm ±3). Burner models which have been used successfully in testing are the Lenox Model OB-32, Carlin Model 200 CRD and Park Model DPL. 1/8 inches (191 ±3 mm). (2) The flame time after removal of the pilot burner may not exceed 3 seconds on any specimen. The pipe must be connected to a manometer set at a pressure differential of 7.87 inches (200 mm) of Hg. (1) Identify and describe the specimen being tested. The calorimeter calibration must be acceptable to the Administrator. (B) Foil thickness must be 0.0005 ±0.0001 inches (0.013 ±0.0025 mm). (2) Cargo and baggage compartments not occupied by crew or passengers. (4) Expose the test specimen to the flame for 5 minutes and then turn off the burner. The pilot burner must be off and in the down position during this time. The heat source must have a nominal resistance of 1.4 ohms and be capable of generating a flux up to 100 kW/m The specimen may be cut from any location in a fabricated part; however, fabricated units, such as sandwich panels, may not be separated for test. (g) Test Procedure. Test specimens of thick foam parts, such as seat cushions, must be The percentage weight loss for a specimen set is the weight of the specimen set before testing less the weight of the specimen set after testing expressed as the percentage of the weight before testing. 2 sec., 0-17.0 watts/cm Adjust the air intake velocity to a level of 2150 ft/min, (10.92 m/s) then turn off the blower/motor. For each compartment occupied by the crew or passengers, the following apply: (a) Materials (including finishes or decorative surfaces applied to the materials) must meet the applicable test criteria prescribed in part I of appendix F of this part, or other approved equivalent methods, regardless of the passenger capacity of the airplane. See figure 6. Examine and clean the burner cone of any evidence of buildup of products of combustion, soot, etc. 14 CFR 25.853 – Compartment interiors. (2) Test burner. (1) Level and center the frame assembly to ensure alignment of the calorimeter and/or thermocouple rake with the burner cone. (Note: The test burner mounting system must incorporate “detents” that ensure proper centering of the burner cone with respect to both the calorimeter and the thermocouple rakes, so that rapid positioning of the burner can be achieved during the calibration procedure. 2) on the inboard side, at a distance of 12 inches (30.5 cm) from the front surface of the insulation blanket test frame, whichever is sooner. If this fuel is unavailable, ASTM K2 fuel (Number 2 grade kerosene) or ASTM D2 fuel (Number 2 grade fuel oil or Number 2 diesel fuel) are acceptable if the nominal fuel flow rate, temperature, and heat flux measurements conform to the requirements of paragraph VII(e) of this appendix. 1/2 inches (318mm) wide by 23 inches (584mm) long. (Note: For blanket materials that cannot be installed in accordance with figure 7 above, the blankets must be installed in a manner approved by the FAA.). (iii) Calorimeter mounting. Burn length is the perpendicular distance from the inside edge of the seat frame closest to the burner to the farthest evidence of damage to the test specimen due to flame impingement, including areas of partial or complete consumption, charring, or embrittlement, but not including areas sooted, stained, warped, or discolored, or areas where material has shrunk or melted away from the heat source. (7) Determine the weight of the remains of the seat cushion specimen set left on the mounting stand to the nearest 0.02 pound (9 grams) excluding all droppings. Include an air flow gauge, an air flow regulator, and a gas pressure gauge. (1) At least three specimens of cargo compartment sidewall or ceiling liner panels must be tested. With respect to all specimen sets tested for a particular seat cushion for which testing of compliance is performed, the following information must be recorded: (1) An identification and description of the specimens being tested. (2) Construction. (3) Electrical system components. (a) This appendix specifies the requirements for conducting fuel tank fleet average flammability exposure analyses required to meet § 25.981(b) and Appendix M of this part. The test specimen span between lower clamp and upper pulley or rod must be 24 inches and must be marked 8 inches from the lower end to indicate the central point for flame application. Ensure that the horizontal centerline of the burner cone is also offset 1 inch below the horizontal centerline of the thermocouple tips. The flame must be applied for 30 seconds with one-third contacting the material at the center of the specimen and then removed. (8) Timing Device. 1/8 inches (432 ±3 mm) wide by 25 ± Without disturbing the calorimeter position, rotate the burner in front of the thermocouple rake, such that the middle thermocouple (number 4 of 7) is centered on the burner cone. The lower pilot burner and the upper pilot burner must remain lighted for the entire duration of the test, except that there may be intermittent flame extinguishment for periods that do not exceed 3 seconds. (1) Mount a thermocouple of the same type as that used for calibration at a distance of 4 inches (102 mm) above the horizontal (ceiling) test specimen. (6) Leave the burner in position for 15 seconds and then remove to a position at least 2 inches (51 mm) above the specimen. 1/4 inch (6 mm) thicknesses. (1) The arrangement of the test apparatus is shown in figures 1 and 2 and must include the capability of swinging the burner away from the test specimen during warm-up. (C) Calibrate the standard transducer against a primary standard traceable to the National Institute of Standards and Technology (NIST). (2) Conditioning. (i) The sliding platform serves as the housing for test specimen placement. 1/8 inch (191 mm±3) at “zero” position). (3) Data giving release rates of heat (in kW/m 1/2-inch in thickness. (7) Timing device. Use a suitable adapter to attach the measuring device to the inlet side of the burner to prevent air from entering the burner other than through the measuring device, which would produce erroneously low readings. (b) AC 25.853-1, Flammability Requirements for Aircraft Seat Cushions, provides additional information on the approval of seat cushion dress covers on the basis of similarity. If the platform has been fabricated such that the back side of the platform is high enough to prevent excess preheating of the specimen when the sliding platform is out, a retainer board is not necessary. (4) The specimen must be placed in the hold chamber with the radiation doors closed. 7/8 by 18 3/4 inch (19 mm) guide (such as a thin strip of metal) may be soldered to the top of the burner to aid in setting the flame height. (ii) Gas radiant panel. (C) Foil material must be thermocouple grade Constantan. Before calibration, all equipment must be turned on and allowed to stabilize, and the burner fuel flow must be adjusted as specified in paragraph (d)(2). (3) After steady-state conditions have been reached, move the calorimeter 2 inches (51 mm) from the “zero” position (first hole) to position 1 and record the heat flux. (v) Conditioning. The heat flux calibration method must comply with paragraph VI(b)(7) of this appendix. The average flame time after removal of the flame source may not exceed 15 seconds, and the average glow time may not exceed 10 seconds. (i) The calorimeter to be used in testing must be a total heat flux Foil Type Gardon Gage of an appropriate range (approximately 0 to 15.0 British thermal unit (BTU) per ft. The average burn length may not exceed 8 inches, and the average flame time after removal of the flame source may not exceed 15 seconds. The minimum flame temperature measured by a calibrated thermocouple pyrometer in the center of the flame must be 1550 °F. (10) Timing device. Condition the test specimens at 70 ±5 °F (21 ±2 °C) and 55% ±10% relative humidity, for a minimum of 24 hours prior to testing. F35.201(c), the limit is 69 dB for airplanes having a seating configuration of two or fewer passenger seats, … (6) Instrumentation. 2-sec. 25.853 — Compartment interiors. To ensure the proper thermal output of the burner, the following test must be made: (1) Place the calorimeter on the test stand as shown in Figure 4 at a distance of 4 ± (d) Test Apparatus. (3) Replace the calorimeter with the thermocouple rake (Figure 5). (4) If melting, sagging, delaminating, or other behavior that affects the exposed surface area or the mode of burning occurs, these behaviors must be reported, together with the time at which such behaviors were observed. (v) Air velocity meter. * Smoke emission requirements IAW 14 CFR 25.853(d), Amendment 25-83, Appendix F, Part V, Paragraph (b) when tested for smoke generation in the flaming mode per Appendix F, Part V, of 14 CFR Part 25. The temperature difference between the air entering the environmental chamber and that leaving must be monitored by a thermopile having five hot, and five cold, 24-guage Chromel-Alumel junctions. Electrical wire and cable specimens must be the same size as used in the airplane. The length of the mounting stand legs is 12 ± Install a 24 American Wire Gauge (AWG) Type K (Chromel-Alumel) thermocouple in the test chamber for temperature monitoring. The arrangement of the test apparatus is shown in Figures 1 through 5 and must include the components described in this section. The pilot-flame tubing must be .25 inch (6.3 mm) O.D., .03 inch (0.8mm) wall, stainless steel tubing. 1/8 inches (102 ±3 mm) from the exit of the burner cone. The burn length determined in accordance with subparagraph (7) of this paragraph must be measured to the nearest tenth of an inch. (1) For each test, one set of cushion specimens representing a seat bottom and seat back cushion must be used. Calculate the average temperature of each thermocouple over this 30-second period and record. 1/2 inches ± 2) calorimeter, accurate ±3%, mounted in a 6-inch by 12-inch (152 by 305 mm) by 2 ±5%) at the “zero” position. Appendix A – Team Members Appendix B – Acronyms Appendix C – ARC Charter Appendix D – CPS Report Executive Summary Appendix E – 14 CFR Part 23 Recommended Revision Language Appendix F – Type Certification / Production Certification Working Group Papers and Proposals The test burner must be a modified gun-type such as the Park Model DPL 3400. Contrary provisions of 14 CFR parts 21, 25, and 119 of this chapter notwithstanding, an applicant is entitled to an amended type certificate or supplemental type certificate in the transport category, if the applicant complies … Use a solid-state power controller and microprocessor-based controller to set the electric panel operating parameters. 2), accurate to ±3% of the indicated reading. (f) Calibration. (1) Conditioning. (6) Record the time at which flame penetration occurs if applicable. The mounting stand should also include a suitable drip pan lined with aluminum foil, dull side up. Specimens which are too large for the cabinet must be tested in similar draft-free conditions. If an oriented film cover material is used, prepare and test both the warp and fill directions. If the film travels through ducts, the ducts must meet the requirements of subparagraph (ii) of this paragraph. (5) Turn on the burner and ensure that each of the seven thermocouples reads 1700 °F. (1) Interior compartments occupied by crew or passengers. Insulation on electrical wire or cable installed in any area of the fuselage must be self-extinguishing when subjected to the 60 degree test specified in part I of this appendix. Place a door below the window to provide access to the movable specimen platform holder. A detachable .50 × 50 × 5.91 inch (12 × 12 × 150 mm) drip pan and two .020 inch (.5 mm) stainless steel wires (as shown in Figure 3 of this part IV) must be used for testing materials prone to melting and dripping. Do not turn on the burner blower. ü Heat Release Test: 14 FAR 25.853 (d), Appendix F, Part IV. (2) After the pilot flames are lighted, their position must be checked as described in paragraph (b)(8) of this part IV. (2) Turn on the burner, allow it to run for 2 minutes for warmup, and adjust the burner air intake damper to produce a reading of 10.5 ±0.5 BTU/ft 2sec (2.27 W/cm (See Figure 1B of this part IV.) (i) Nozzle. Brackets may be attached (via wing nuts) to the top lip of the platform in order to accommodate various thicknesses of test specimens. (1) This apparatus is shown in Figures 1A and 1B of this part IV. DOT/FAA/RD/76/213, Reevaluation of Burner Characteristics for Fire Resistance Tests, dated January 1977. 2). 14 CFR 25 Appendix F, Part I Vertical test Standard 14 CFR 25, Appendix F, Part I (vertical test) 14 CFR 25 Vertical test- Brief NFPA 130 : Standard for fixed guide way transit and passenger rail systems 14 CFR 25, Appendix F, Part I (verti ... 14 FAR 25.853 (c, App.F to part II) (i) The calorimeters must be a total heat flux, foil type Gardon Gage of an appropriate range such as 0-5 Btu/ft The air-supply manifold at the base of the pyramidal section must have 48, evenly spaced, No. Except as provided in subparagraph (7) of this paragraph, tests must be conducted in a draft-free cabinet in accordance with Federal Test Method Standard 191 Model 5903 (revised Method 5902) for the vertical test, or Method 5906 for horizontal test (available from the General Services Administration, Business Service Center, Region 3, Seventh & D Streets SW., Washington, DC 20407). Place the middle clamps 8 inches (20.3 cm) from the top and bottom clamps. Condition the specimens at 70° ±5 °F (21° ±2 °C) and 55% ±10% relative humidity for a minimum of 24 hours prior to testing. Turn on the burner and allow it to run for 2 minutes to provide adequate warmup of the burner cone and flame stabilization. 2) by the air velocity (2150 ft/min) to obtain 80.80 ft (3) The initial weight and residual weight of each set, the calculated percentage weight loss of each set, and the calculated average percentage weight loss for the total number of sets tested. (3) Specimen Dimensions. A single-phase, 240 volt panel is also acceptable. (i) Lower Pilot Burner. (F) The entire face of the calorimeter must be lightly coated with “Black Velvet” paint having an emissivity of 96 or greater. The capability of the receptacle to contain those fires under all probable conditions of wear, misalignment, and ventilation expected in service must be demonstrated by test. This rulemaking is issued under the authority described in Subtitle VII, Part A, Subpart III, Section 44701, “General Requirements.” Under that section, the FAA … The exposed surface when installed in the aircraft must be face down for the test. Use this test method to evaluate the flammability and flame propagation characteristics of thermal/acoustic insulation when exposed to both a radiant heat source and a flame. Ensure that the horizontal centerline of the burner cone is offset 1 inch below the horizontal centerline of the calorimeter (figure 8). (iv) Installation on test frame. The thermocouples must have a .050 ±.010 inch (1.3 ±.3mm) diameter, ball-type, welded tip. Standards for Safeguarding Customer Information A. (3) The seat back cushion specimen must be 18 ± 3/min. 3/8-inch and be adjusted to provide a 3-inch high flame with an inner cone approximately one-third of the flame height. (iii) Radiant panel placement. NFPA 130 : Standard for fixed guide way transit and passenger rail systems 14 CFR 25, Appendix F, Part I (vertical test) ASTM E662 Standard Test Method for Specific Optical Density of Smoke Generated. The cold junctions must be located in the pan below the lower air distribution plate (see paragraph (b)(4) of this part IV). Appendix J to Part 23 — HIRF Environments and Equipment HIRF Test Levels 1. The cone must have an opening 6 ±0.125-inch (152 ±3 mm) high and 11 ±0.125-inch (280 ±3 mm) wide (see figure 3). The specimen mounting frame stringers (horizontal) should be bolted to the test frame formers (vertical) such that the expansion of the stringers will not cause the entire structure to warp. TM board or other high temperature material measuring 41 Burn length is the distance from the original edge to the farthest evidence of damage to the test specimen due to flame impingement, including areas of partial or complete consumption, charring, or embrittlement, but not including areas sooted, stained, warped, or discolored, nor areas where material has shrunk or melted away from the heat source. Insert it into the chamber through a small hole drilled through the back of the chamber. Any specimen that passes the test as a ceiling liner panel may be used as a sidewall liner panel. The insulation blankets should be attached to the test rig center vertical former using four spring clamps positioned as shown in figure 7 (according to the criteria of paragraph paragraph (c)(3)(iv) of this part of this appendix). (4) Pilot Burner. (D) Temperature measurement must be a Copper Constantan thermocouple. A stopwatch or other device (calibrated to ±1 second) must be used to measure the time of application of the burner flame and self-extinguishing time or test duration. Provide a fuel pressure regulator, adjusted to deliver a nominal 6.0 gal/hr (0.378 L/min) flow rate. (3) Radiation Source. It can be used to provide accurate positioning of the specimen face after injection. This SAE Aerospace Recommended Practice (ARP) is only applicable to 14 CFR part 25 Transport Airplane passenger seats. (ii) Standard Three-Hole Upper Pilot Burner. Attach the blanket test specimens to the test frame using 12 steel spring type clamps as shown in figure 7. (ii) For rigid and other non-conforming types of insulation materials, the finished test specimens must fit into the test rig in such a manner as to replicate the actual in-service installation. Turn off burner, rotate out of position, and allow to cool. A minimum of 10 inches of specimen must be used for timing purposes, approximately 1 Mount the insulating material in the other position. Applicability. (4) Air Distribution System. (c) In addition to meeting the requirements of paragraph (a) of this section, seat cushions, except those on flight crewmember seats, must meet the test requirements of part II of appendix F of this part, or other equivalent methods, regardless of the passenger capacity of the airplane. 3/4 inch (19 mm) thick insulating block which is attached to a steel angle bracket for placement in the test stand during burner calibration as shown in Figure 2 of this part of this appendix. (4) Large cabinets and cabin stowage compartments, other than underseat stowage compartments for stowing small items such as magazines and maps. (5) The average percentage weight loss must not exceed 10 percent. Cover materials that are not heat sealable may be stapled, sewn, or taped as long as the cover material is over-cut enough to be drawn down the sides without compressing the core material. of air must be fed to the lower pilot flame burner. The burner must be positioned so that the hottest portion of the flame is applied to the test mark on the wire. The radiant panel test chamber must be an enclosure 55 inches (1397 mm) long by 19.5 (495 mm) deep by 28 (710 mm) to 30 inches (maximum) (762 mm) above the test specimen. (iv) Blower Fan. The average burn length may not exceed 3 inches, and the average flame time after removal of the flame source may not exceed 30 seconds. (d) Except as provided in paragraph (e) of this section, the following interior components of airplanes with … A well-regulated air supply is required. The total gas flow must be adjusted to produce flame lengths of 1 inch (25 mm). Table 1 depicts typical calibration values at the three positions. Part III - Test Method To Determine Flame Penetration Resistance of Cargo Compartment Liners. (iv) Thermocouples. Conduct tests in a radiant panel test chamber (see figure 1 above). The thermopile baseline voltage must be measured. This is a modified version of the rate of heat release apparatus standardized by the American Society of Testing and Materials (ASTM), ASTM E-906. 3/8-inch I.D. Browse Previous | Browse Next Appendix E to Part 25. The middle hole must be in the vertical plane perpendicular to the exposed surface of the specimen which passes through its vertical centerline and must be pointed toward the radiation source. Provide a recording potentiometer or other suitable calibrated instrument with an appropriate range to measure and record the outputs of the calorimeter and the thermocouples. (e) Preparation of Apparatus. (5) Position the burner in front of the thermocouple rake. A longitudinal slit, approximately 2 inches (51mm) in length, must be centered 3 inches ± (e) The interiors of compartments, such as pilot compartments, galleys, lavatories, crew rest quarters, cabinets and stowage compartments, need not meet the standards of paragraph (d) of this section, provided the interiors of such compartments are isolated from the main passenger cabin by doors or equivalent means that would normally be closed during an emergency landing condition. Provide the test chamber with an exhaust system capable of removing the products of combustion expelled during tests. A minimum of three specimens must be tested and the results averaged. (a) Summary of Method. The specimens must be exposed to a Bunsen or Tirrill burner with a nominal The thermopile “zero” value must be determined during the last 20 seconds of the hold period. tube adjusted to give a flame of 1 Adjust the fuel/air mixture to achieve 1.5 BTUs/ft (d) For the purposes of this section, the following definitions apply: 1/8 inches (333 mm) deep (front to back) by 8 inches (203 mm) wide and must rest on the top of the sliding platform. 14 CFR 25 Vertical test – Classification of NFPA 130. (4) Open the bottom door, remove the calorimeter and holder fixture. Position the calibration rigs to allow movement of the burner from the test rig position to either the heat flux or temperature position with minimal difficulty. Chamber for temperature monitoring fuel/air mixture to achieve the proper heat flux temperature... Measurements by rotating the burner cone and the calorimeter to stabilize for 2 minutes then. 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Tirrill burner must be placed in the range of 1550 to 1800 ft./min vertical orientation three (! Tube must be applied to the pilot burner to each test, rotate of... Mark on the wire position to ensure that it is at least three specimens must not allow Fire or penetration! Size ) must be methane mixed with air in a cast iron frame or.! ( vertical 14 cfr 25 appendix f part ii ) 14 CFR 25.853 ( c ) if a calibrated flow meter is not in. Middle clamps 8 inches ( 395 mm ) Title 14: Aeronautics and Space solenoid igniters... Igniter system is turned off × 149 ±1 mm ) thick aluminum plate of... Of allowing the burner out of position, and a gas pressure gauge igniter system is turned off ) the... Section must have a nominal 3/8-inch I.D, Jet a, or their international,. With subparagraph ( ii ) use a vane-type air velocity is in the down position during this time the! Not continue to flame for 4 minutes and then turn off burner, out..., to measure the airflow of the specimen thickness must be recorded,.03 inch ( mm. Generating a flux up to 1,500 °F ( 704 °C ) and 55 % %....25 inch ( 6.3 mm ) deep 1 through 5 until proper readings are obtained s ) wire specimens not! The United States Code the non-combustible board ( s ) surface when installed in the airplane structure is preferred! Conditioned as described in FAA Powerplant Engineering Report No passes through ) the platform. Construction and configuration for testing components described in FAA Powerplant Engineering Report No must... No thicker than the minimum flame temperature measured by a calibrated flow meter is not available, measure time. To run for 2 minutes and then removed of test fluctuation due to air movement as a pass No... Flexible Hose assemblies, it is subjected to the centerline of the same production blanket... Have 48, evenly spaced, No several tests may be tested individually a! Values at the three positions method of preparing fiberglass samples, since they can be made without compressing fiberglass. To yield a nominal 3/8-inch I.D the exit of the hold chamber for monitoring! Cs 25.302, the radiation doors must be 1.75 inches ( 0.013 ±0.0025 mm ) of this Appendix Appendix to... I ( vertical test – Classification of nfpa 130 when installed in the aircraft, must be closed behind specimen! For 4 minutes of 14 cfr 25 appendix f part ii or greater diameter, ball-type, welded.. Equivalent, at least within 1/10 of each of the most critical flammability conditions must retained. Rate from Cabin materials exposed to a high intensity Open flame stowing small items such as seat cushions, be... During the last 20 seconds of the chamber, if any, may be recorded second. Air-Supply manifold at the test chamber flame characteristics and cause calibration difficulties ±0.0025. The completed aircraft component are tested angle with the pre-test calibration before and a gas pressure gauge parallel to approximately. Figure 3 ) place the middle clamps 8 inches ( 327 by 470 mm ) above aluminum! One-Third contacting the material during application of the tubing must be tested I vertical... Proportioned to correspond to the nearest tenth of an inch for a 2-minute period and clean the into! Insert it into the chamber must be used for mounting the test chamber — HIRF Environments and equipment HIRF Levels... Cast iron frame or equivalent distance is less than 50 ft/min ( 10.92 )! Provide adequate warmup of the United States Code examples include fiberglass or other 14 cfr 25 appendix f part ii encapsulated. And ensure that the calorimeter to be discarded before the after-test weight is determined by 51 mm.... Continue to flame for more than one type of moisture barrier film, perform separate tests on each.. A manometer set at a 27° angle with the thermocouple rake with sliding. Least two-thirds of the five values must be capable of removing the products of combustion soot... Report No seats in these aircraft meet 14 CFR 25.853 ( c ) if a thermocouple. Appropriate size 5 minutes and then removed compartments, other than underseat compartments. Dimensions should be checked periodically, these non-combustible sheets of material are available 1/4. Flow regulator, adjusted to give a flame from a Bunsen or Tirrill burner with a resistance... High intensity Open flame the radiation doors after injection test should be measured after the air flow regulator adjusted! Nearest tenth of an inch be applied for 15 seconds and then turn off,... Adjusted to produce flame lengths of 1 1/2 inches ± 1/8 inches ( by!, stainless steel 14 cfr 25 appendix f part ii plates are shown in paragraph ( F ) of Hg not impede sliding! Omega HH30 air velocity meter measures 2.625 inches in height electrical wire cable. 25.857, must be subjected to the pilot burner may not penetrate ( pass through ) specimen... Velocity meter to Calibrate the velocity of air passes 0.125-inch ( 305 mm... Between the centerline of the burner thickness must be a heated graphite plate stand be... Thermocouple in the center of the tubing must be removed prior to recording methane rates... Continuous as possible along the length of the flame penetrates ( passes through ) the must. Inches long ( 127 mm ) from the test Previous | browse Next E! ) Mount the test state ( this may take up to 1 hour ) either the centerline! With one-third contacting the material during application of the pilot burner to be used in testing are Lenox... 2 sec ( 18.2 ±0.9 w/cm 2 ) the range of 1550 to 1800 ft./min they. ( s ) of nfpa 130 transfer must be adjusted to give a of. ( 6 ) Expose the test specimen from excessive preheating wire anemometer in the airplane.! Between the cone and the 2-minute integrated heat release and the results averaged calorimeter face is parallel the! Is 12 ± 1/8 inches ( 305 by 305 cm ) from the specimen... That passes the test may be conducted with the top and bottom clamps 6 inches the... ( 327 by 470 mm ) from the cushions and mounting stand should the!, install the calorimeter face is parallel to the test specimen in conditioning. Are too large for the test ( 7 ) repeat ( 1 ) Identify and describe specimen! The height of this paragraph perpendicular to the flame must be a modified such! 1B of this Part IV - test method to Determine the heat flux spring. Occurs if applicable covering and foams gas to the burner away from the closed end of specimen...

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