1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2016 SAE InternationalAll rights reserved. No part of this publi
3、cation may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on thisTechnical Report, please visithttp:/www.sae.org/technical/standards/ARP5627AEROSPACERECOMMENDED PRACTICEARP5627Issued 2006-01Reaffirmed 2016-10Flammability Test
5、Method for Aircraft Comfort BlanketsRATIONALEARP5627 has been reaffirmed to comply with the SAE five-year review policy.FOREWORD This SAE Aerospace Recommended Practice (ARP) is written by the S-9 committee to document a flammability test for comfort blankets used in transport category aircraft cabi
6、ns. The information contained herein was developed by the FAA Tech Center and originally presented in DOT/FAA/AR-96-15. TABLE OF CONTENTS 1. SCOPE 32. REFERENCES.33. DEFINITIONS 34. TEST APPARATUS .44.1 Test Cabinet.4 4.2 Test Fixture 4 4.3 Burner 4 4.4 Burner Fuel 4 4.5 Plumbing for Gas Supply .4 4
7、.6 Flame Height Indicator.4 4.7 Timer5 SAE INTERNATIONAL ARP5627 Page 2 of 155. TEST SPECIMENS55.1 Specimen Selection .5 5.2 Specimen Number .5 5.3 Specimen Size .5 5.4 Specimen Thickness5 5.5 Specimen Conditioning 5 6. PROCEDURES56.1 Burner Adjustment .5 6.2 Test Process 6 7. REPORT 68. PASS/FAIL R
8、EQUIREMENTS.78.1 Flame Time 7 8.2 Drip Flame Time.7 FIGURE 1 Sketch of Bunsen Burner Test Cabinet 8 FIGURE 2 Front and Top View of Bunsen Burner Test Cabinet9 FIGURE 3 Side Views of Bunsen Burner Test Cabinet .10 FIGURE 4 Horizontal Test Fixture .11 FIGURE 5 Horizontal Test Fixture Details .12 FIGUR
9、E 6 Burner Plumbing and Burner Flame Height Indicator.14 FIGURE 7 Horizontal Test Fixture with Four-Ply Blanket Sample .15 SAE INTERNATIONAL ARP5627 Page 3 of 15 1. SCOPE: This SAE Aerospace Recommended Practice (ARP) applies to blankets used for passenger comfort within transport category aircraft
10、cabins. When the term “blanket” is used in this document it refers to all blankets that are provided by the aircraft operator for passenger warmth. 1.1 Purpose: This document provides a recommended procedure for a flammability test to be performed on transport category aircraft comfort blankets. Thi
11、s test will enhance safety for cabin occupants. 2. REFERENCES: The test defined in this document was included in DOT/FAA/AR-96-15, “The Development of a Flammability Test Method for Aircraft Blankets” as Appendices A and B. This report may be downloaded from the FAA Technical Centers website at www.
12、tc.faa.gov. Title 14 Code of Federal Regulations Part 25, AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRCRAFT may be purchased from the Superintendent of Documents, Government Printing Office, Washington, DC 20402-9325. 3. DEFINITIONS: IGNITION TIME: Ignition time is the length of time the burner f
13、lame is applied to the specimen. FLAME TIME: Flame time is the time in seconds that the specimen continues to flame after the burner flame is removed from beneath the specimen. Surface burning that results in a glow but not in a flame is not considered flame time. DRIP FLAME TIME: Drip flame time is
14、 the time in seconds that any flaming material continues to flame after falling from the specimen to the floor of the chamber. SAE INTERNATIONAL ARP5627 Page 4 of 15 4. TEST APPARATUS: 4.1 Test Cabinet: A draft-free cabinet shall be fabricated to the specifications depicted in Figures 1, 2, and 3. A
15、 hole should be drilled into the side of the cabinet to accept the Wall Mount of the test fixture (Figure 4). The hole should be drilled at a height that will allow proper alignment of the test fixture with respect to the burner (6.2.1). It is suggested that the cabinet be located inside an exhaust
16、hood to facilitate clearing the cabinet of smoke after each test. Stainless steel or other corrosion resistant metal 0.040 inch (1 mm) thick shall be used for the bottom surface of the cabinet. 4.2 Test Fixture: The test fixture, (depicted in Figure 4) should be fabricated of corrosion resistant met
17、al, as detailed in Figure 5. This test fixture is identical to that used for the forty-five-degree test specified in FAR 25.855. 4.3 Burner: The burner shall be a Bunsen or Tirrill type having a 3/8-inch (10-mm) inside diameter barrel and equipped with a needle valve located at the bottom of the bur
18、ner barrel to adjust the gas flow rate and thereby adjust the flame height There shall be a way to remove or extinguish the flame when the cabinet door is closed. 4.4 Burner Fuel: Methane gas (99% minimum purity) is the preferred fuel, because it can be used to produce a pure diffusion flame without
19、 adding air through any aspirating holes at the bottom of the burner flame barrel. 4.5 Plumbing for Gas Supply: The necessary gas connections and the applicable plumbing should be implemented as shown in Figure 6. A control valve (stopcock) shall be installed between the gas supply and the burner in
20、let capable of regulating the gas pressure at 2-1/2 psi 1/4 psi (17 kPa 2 kPa). 4.6 Flame Height Indicator: A removable height indicator shall be used to aid in setting the height of the flame. The indicator should have a prong extending 1.5 inches (38 mm) above the top of the burner barrel and spac
21、ed 1 inch (25 mm) away from the burner barrel as shown in Figure 6. With methane gas, it is desirable to have two prongs for measuring the flame height; one prong to indicate the height of the inner cone of the flame and one prong to indicate the height of the tip of the flame. When the height of th
22、e flame tip is 1-1/2 inches (38 mm) long, the desired flame profile is achieved. SAE INTERNATIONAL ARP5627 Page 5 of 15 4.7 Timer: A stopwatch or other device calibrated to the nearest 0.1 second. 5. TEST SPECIMENS: 5.1 Specimen Selection: Specimens shall be cut from new blankets. 5.2 Specimen Numbe
23、r: At least three specimens shall be prepared and tested. 5.3 Specimen Size: The test fixture requires an 8-inch by 8-inch specimen to be tested. However, an 11-inch by 11-inch specimen shall be cut in order to pull the specimen taut once secured in the test fixture. The excess material may be trimm
24、ed. 5.4 Specimen Thickness: The specimen shall be of 4-ply configuration, accomplished by stacking four individual blanket specimens cut to size. 5.5 Specimen Conditioning: Specimens shall be conditioned in the test fixture to 70 F 5 F (21 C 3 C), and 50% 5% relative humidity for 24 hours. Each spec
25、imen must remain in the conditioning environment until it is subjected to the flame. 6. PROCEDURES: 6.1 Burner Adjustment: 6.1.1 Ensure that air supplied to the burner is shut off by closing any air adjustment on the burner. 6.1.2 Open the stopcock in the gas line fully and light the burner. 6.1.3 A
26、djust the needle valve on the burner to give the proper 1-1/2-inch (38-mm) flame tip height and then remove the flame height indicator. 6.1.4 Measure the flame temperature in the center of the flame using a calibrated thermocouple pyrometer. The minimum temperature is 1550 F. The maximum temperature
27、 is 1650 F. SAE INTERNATIONAL ARP5627 Page 6 of 15 6.2 Test Process: 6.2.1 Insert the test fixture with specimen in place into the test cabinet. The bottom of the specimen shall be 3/4 inch above the level at the top of the burner. 6.2.2 Close the cabinet door and keep it closed during the test. 6.2
28、.3 Position the burner such that it is directly under the geometric center of the test specimen using the rod shown in Figure 7 that extends through the cabinet side. Start the timer immediately upon positioning the burner. 6.2.4 Apply the flame for 12 seconds and then withdraw it by moving the burn
29、er at least 3 inches (76 mm) away from the specimen or by turning the gas off. If the flame extinguishes during the ignition time for any reason, the test shall be rerun. 6.2.5 If flaming material falls from the test specimen, determine the drip flame time for the specimen. If no material falls from
30、 the specimen, the drip flame time is reported to be 0 seconds, and the notation “No Drip” is also reported. If there is more than one drip, the drip flame time reported is that of the drip that flames longest. If succeeding flaming drips reignite earlier drips that flamed, the drip flame time repor
31、ted is the total of all flaming drips. 6.2.6 Determine the flame time for the specimen. 6.2.7 After all flaming ceases, the cabinet door should be opened slowly to clear the test cabinet of fumes and smoke. The exhaust fan may be turned on to facilitate clearing the smoke and fumes. 6.2.8 Remove any
32、 material that fell from the specimen to the bottom of the cabinet. If necessary, clean the test cabinet window prior to testing the next specimen. 7. REPORT: 7.1 Report the composition and color of the material tested. 7.2 Test Results: 7.2.1 Ignition Time: Report the ignition time. 7.2.2 Flame Tim
33、e: Report the flame time for all specimens tested. Determine and report the average value for flame time. 7.2.3 Drip Flame Time: Report the drip flame time for all specimens tested. Determine and report the average value for drip flame time. For specimens that have no drips, report “0” for the drip
34、flame time and also report “No Drips.” SAE INTERNATIONAL ARP5627 Page 7 of 15 8. PASS/FAIL REQUIREMENTS: 8.1 Flame Time: If the average flame time for all of the specimens tested exceeds 15 seconds, the tested blanket is not suitable for use in transport category aircraft. 8.2 Drip Flame Time: If th
35、e average drip extinguishing time for all of the specimens tested exceeds 5 seconds, the tested blanket is not suitable for use in transport category aircraft. 8.3 Burn Area: If the average burn area of all the specimens tested exceeds 75% of the exposed specimen size, the tested blanket is not suit
36、able for use in transport category aircraft. SAE INTERNATIONAL ARP5627 Page 8 of 15 FIGURE 1 - Sketch of Bunsen Burner Test Cabinet SAE INTERNATIONAL ARP5627 Page 9 of 15 FIGURE 2 - Front and Top View of Bunsen Burner Test Cabinet SAE INTERNATIONAL ARP5627 Page 10 of 15 FIGURE 3 - Side Views of Buns
37、en Burner Test Cabinet SAE INTERNATIONAL ARP5627 Page 11 of 15 (203 mm)(254 mm) (254 mm) FIGURE 4 - Horizontal Test Fixture SAE INTERNATIONAL ARP5627 Page 12 of 15 FIGURE 5 - Horizontal Test Fixture Details TAP 1/4 - 20 UNC 4 PL. (M6 X 1) 1.00 TYP (25.4 mm) 5.00 (127 mm) .50 TYP (12.7 mm)PLATE-BASE1
38、1FILET WELD TYP (2 PL)0.250 REF (6.4 mm)MATL: ALALY. PL. .250 in THICK (6.4 mm) QNTY: 1 REQD PER ASSY FINISH: VIBRATORY SAND & CAUSTIC DIP 8.000 TYP (203 mm) 9.000 TYP (229 mm) 10.000 TYP(254 mm).250 DIA.+.010/-.000 4 PL (6.4 mm)1.00 TYP (25.4 mm) .50 TYP (12.7 mm) 0.125 REF (3.18 mm) 0.250 (6.4 mm)
39、 4.0 (101.6 mm) THREAD -13 (M14 X 2) 0.50 (12.7 mm) 1.000 (25.4 mm) 0.250 (6.4 mm) 0.50 (12.7 mm) 8.000 TYP (203 mm) 9.000 TYP (229 mm) 10.000 (254 mm)TYP SUPPORT13MATL: MAKE FROM PARTS NOTED QNTY: 1 REQD PER ASSY FINISH: VIBRATORY SAND & CAUSTIC DIP 1 PLATE ASSY MATL:ALALY. PL. .125 in THICK (3.18m
40、m) QNTY:1 REQD PER ASSYFINISH:VIBRATORY SAND & CAUSTIC DIP 2 PLATE COVER MATL:ALALY. BAR. .5 in SQUARE (1.3 mm) QNTY:1 REQD PER ASSYFINISH:VIBRATORY SAND & CAUSTIC DIP 13 SUPPORT KEEP ALL DIMENSION TOLERANCES S TO + 0.0111 PLATE BASE SAE INTERNATIONAL ARP5627 Page 13 of 15 FIGURE 5 - Horizontal Test
41、 Fixture Details (Continued) PLATE _ COVER(1 REQD) SCREW1/4-20 UNC 1.5 in (M6 X 1 38 mm.) )(4 REQD)WASHER1/4 (6.4 mm)(4 REQD)SCREW1/4-20 UNC (M6 X 1) (4 REQD)NUTROUNDSPLIT LOCKTHUMBHEX1/2-13 UNC (M14 X 2) (2 REQD) 2PLATE ASSY(1 REQD) 1 HOLD ALL DIMENSIONS TO + 0.01SAE INTERNATIONAL ARP5627 Page 14 of 15 FIGURE 6 - Burner Plumbing and Burner Flame Height Indicator SAE INTERNATIONAL ARP5627 Page 15 of 15 FIGURE 7 - Horizontal Test Fixture with Four-Ply Blanket Sample PREPARED BY SAE SUBCOMMITTEE S-9A, SAFETY EQUIPMENT & SURVIVAL SYSTEMS OF COMMITTEE S-9, CABIN SAFETY PROVISIONS
