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 there
2、from, 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 2013 SAE International All rights reserved. No part of this p
3、ublication 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: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J369_201306 SURFACE VEHICLE STANDARD J369 JUN2013 Issued 1969-03 Revised 2013-06
5、Superseding J369 NOV2007 Flammability of Polymeric Interior Materials - Horizontal Test Method RATIONALE SAE J369 is being revised to further harmonize this standard with other similar standards such as ASTM D5132 and ISO 3795. This includes minor adjustments to equipment dimensions and sample condi
6、tioning requirements, as well as the updating of figures. 1. SCOPE This SAE Standard pertains to automotive vehicles and off-road, self-propelled work machines used in construction, general purpose industrial, agriculture, forestry, and specialized mining machinery. This standard does not address al
7、l of the safety concerns, if any, associated with its use. It is the responsibility of the user of this document to establish safety and health practices and determine the applicability of regulatory limitations prior to use. Fire testing is inherently hazardous. Adequate safeguards for personnel an
8、d property shall be employed when conducting this test. 1.1 Purpose This test method is intended for burning rate measurement of polymeric materials used in the operator and passenger compartments as specified by the applicable standard. SAE J369 is technically equivalent to ISO 3795, ASTM D 5132 an
9、d FMVSS 302. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 ISO Publication Available from American National Standards Institute, 2
10、5 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ISO 3795 Road vehicles, and tractors and machinery for agriculture and forestry - Determination of burning behaviour of interior materials SAE J369 Revised JUN2013 Page 2 of 9 2.1.2 ASTM Publication Available from ASTM Int
11、ernational, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org ASTM D 5025 Standard Specification for Laboratory Burner Used in Small-Scale Burning Tests on Plastic Materials ASTM D 5132 Standard Test Method for Horizontal Burning Rate of Flexible
12、 Cellular and Rubber Materials Used in Occupant Compartments of Motor Vehicles 2.1.3 Federal Safety Standard Available from the Superintendent of Documents, U. S. Government Printing Office, Mail Stop: SSOP, Washington, DC 20402-9320. FMVSS 302 (49 CFR 571.302) Flammability of Interior Materials - P
13、assenger Cars, Multipurpose Passenger Vehicles, Trucks, and Buses 3. CLASSIFICATIONS 3.1 (DNI) The material does not support the combustion during or following the 15 s ignition period and does not transmit a flame front across either surface to the first scribed line. (No calculation is required.)
14、Report the results as: DNI. 3.2 (SE/0) The material ignites on either surface, but the flame extinguishes itself before reaching the first scribed line. (No calculation is required.) Report the results as: SE/0. 3.3 (SE/NBR) The material stops burning before it has burned for 60 s from the start of
15、timing, and has not burned more than 51 mm from the point where the timing was started. (No calculation is required.) Report the results as: SE/NBR. 3.4 (SE/B) When the leading flame front on either surface progresses beyond the first scribed line, but extinguishes itself before reaching the second
16、scribed line, time and measure its progress to the furthest point where the burning stops and calculate and report the burn rate only if the burned distance exceeds 51 mm or the burn time is 60 s or greater. Report the results as: SE/B. Calculate burn rate. 3.5 (B) The material burns the full 254 mm
17、. Report the results as: B. Calculate burn rate. SAE J369 Revised JUN2013 Page 3 of 9 3.6 (RB) The material transmits a flame across either surface more than 51 mm beyond the first scribed line at a rate too fast to measure accurately; therefore, no calculation is required. Examples of the materials
18、 in this category are extremely thin films that burn rapidly, or napped surfaces that “flash.” Report the results as: RB. 4. APPARATUS REQUIRED 4.1 Burner A Tirrill, Bunsen, or equivalent burner with a gas flow regulating valve and a 9.5 mm 0.3 mm inside diameter tube, so positioned in the cabinet t
19、hat the center of the end of the specimen shall be directly above the tip of the flame when the specimen is in place. The burner tube may be mounted on the chamber door provided the alignment on the specimen meets the previous requirements. For more definitive information on the burner see ASTM D 50
20、25. 4.2 Burner Fuel The gas supplied to the burner shall have a heating value of 37 MJ/m3 1 MJ/m3. 4.3 Specimen Holder Consisting of two identical U-shaped metal frames made from chrome or nickel-plated steel, or other metal that does not corrode. The dimensions for these frames are shown in Figure
21、1. Lines shall be engraved or scribed on both surfaces of each frame located as shown in Figure 1. 4.4 Specimen Holder Support The specimen holder shall be supported horizontally so that the top of the burner is 19 mm below the top surface of the lower specimen frame. See Figures 3 and 4. NOTE 1: Li
22、mited data indicates that the use of a “drip tray” under the specimen holder does not significantly affect the test results. If differences are observed by the testing laboratory, the drip tray shall be removed. FIGURE 1 - SPECIMEN HOLDER, CONSISTING OF TWO IDENTICAL U-SHAPED FRAMES SAE J369 Revised
23、 JUN2013 Page 4 of 9 4.5 Metal Cabinet The cabinet (Figure 2) for protecting the specimen from drafts shall be fabricated from noncorroding metal and shall be approximately 380 by 355 by 200 mm as shown in Figure 2. It shall have a removable top and a glass observation window in front. For ventilati
24、on, the base shall have five 19 mm diameter holes equally spaced along each side of the cabinet. In addition, there shall be a 13 mm ventilating clearance running around the perimeter of the cabinet just below the top. At one end of the cabinet there shall be a door to permit insertion of the specim
25、en holder and the specimen. A small hole may be drilled in the cabinet to accommodate the tubing that connects the gas line to the burner. The cabinet shall have 10 mm risers to permit the circulation of air. FIGURE 2 - HORIZONTAL FLAMMABILITY CABINET FIGURE 3 - TYPICAL SPECIMEN HOLDER SUPPORT SAE J
26、369 Revised JUN2013 Page 5 of 9 FIGURE 4 - SPECIMEN HOLDER WITH SPECIMEN POSITIONED IN THE HOLDER SUPPORT 4.6 Combing Device A comb at least 110 mm in length with 7 to 8 smooth round teeth per 25 mm. 4.7 Timing Device A stop watch that indicates time to 0.1 of a second. 5. TEST SPECIMENS Test a mini
27、mum of 5 specimens, unless otherwise agreed upon by both parties. In all instances, the largest possible specimen size is to be cut from the material up to the standard specimen size of 102 mm x 356 mm x thickness. The minimum width and length shall be 95 mm x 300 mm. Cut specimens from uniform dens
28、ity samples. The maximum thickness of any specimen shall be 13 mm. If any material to be tested exceeds this, it shall be cut to the previous thickness by a mechanical process applied to the side, which does not face the occupant compartment, so that specimen shall include the primary surface of the
29、 part. In case of materials made of different composition, which are not composite materials, all the layers within a depth of 13 mm from the surface facing towards the occupant compartment shall be tested individually, as shown in Figure 5. Any material that does not adhere to other material at eve
30、ry point of contact shall be tested separately. Any material that adheres to other material(s) at every point of contact shall be tested as a composite with other material(s). Record the information on specimen preparation in the test report. For composites, laminates, or surface-treated samples, th
31、e side nearest to the compartment occupant should be placed facing down during testing. If the materials grain pattern or construction is such that it has a directional effect on the burning rate, testing should be conducted in both the transverse and longitudinal directions. Where the maximum avail
32、able width of the specimen is 51 mm or less so that the sides of the specimen cannot be held in the two matching U-shaped frames, it is to be supported by the use of.25 mm wires of heat-resistant composition spanning the top surface of the bottom U-shaped frame at 25 mm intervals, as shown in Figure
33、 6. The U-shaped wire frame shall also be used for a specimen that softens and bends at the flaming end. SAE J369 Revised JUN2013 Page 6 of 9 FIGURE 5 - SPECIMEN PREPARATION (ILLUSTRATIVE EXAMPLE) Material A has a non-adhering interface with material B and is tested separately. Part of material B is
34、 within 13 mm of the occupant compartment air space, and materials B and C adhere at every point of contact; therefore B and C are tested as a composite. The cut is in material C as shown, to make a specimen 13 mm thick. 5.1 Selection and Direction Shall be as specified in the applicable standard. 5
35、.2 Surface Preparation When materials to be tested contain either a napped or a tufted-type surface, this test specimen shall be placed on a hard, flat surface and combed twice against the nap prior to testing. FIGURE 6 - BOTTOM U-SHAPED WIRE FRAME USED FOR SPECIMENS THAT ARE 51 MM OR LESS IN WIDTH
36、OR THAT BURN NONUNIFORMLY USED IN CONJUNCTION WITH EITHER FRAME SHOWN IN FIGURE 1 SAE J369 Revised JUN2013 Page 7 of 9 6. TEST PROCEDURE 6.1 Prior to testing, each specimen is conditioned for 24 h at a temperature of 23 C 2 C and 50% 10% relative humidity or as otherwise specified. 6.2 For convenien
37、ce, the samples may be stored up to 1 h in closed polyethylene bags after conditioning and prior to testing. 6.3 The tests should be conducted with the metal cabinet in a draft-free fume hood to prevent fumes from spreading throughout the room. The face velocity of the fume hood shall not exceed 0.4
38、 m/s. The burn room shall have a temperature between 15 C and 35 C and a relative humidity between 45% and 75%. 6.4 Close the air intake ports on the burner and adjust the gas flow to produce a flame 38 mm 1 mm in height. 6.5 Place the mounted specimen in a horizontal position in the center of the c
39、abinet. 6.6 Position the burner so that the center of the barrel is directly below the center of the open end of the mounted test specimen. 6.7 Expose the specimen to the flame for 15 s, then extinguish the burner flame or remove the burner from the specimen. 6.8 From the time of the initial burner
40、flame contact with the specimen, observe for any rapid burning or flame front progression across the top or bottom surface of the material. Begin timing (without reference to the 15 s burner flame application), when the leading flame front reaches the first scribed line 38 mm from the open end of th
41、e U-shaped frame. If the leading flame front progresses more than 51 mm beyond the first scribed line at such a rapid rate that it cannot be measured with any degree of accuracy, the material shall be classified as RB. 6.9 Stop the timing when the flame is either extinguished or has burned the addit
42、ional 254 mm to the second engraved line on the specimen holder. 6.10 Record, in seconds, the time required for the flame to travel the 254 mm between the scribed lines on the specimen holder. Or, record the time in seconds and the burned length beyond the 38 mm scribed line if the flame is extingui
43、shed before traveling the full 254 mm. 6.11 Use the following classifications to report the complete flammability results as illustrated in Figure 7 and described in Sec. 3. FIGURE 7 - ILLUSTRATION OF DEFINITIONS FOR REPORTING TEST RESULTS SAE J369 Revised JUN2013 Page 8 of 9 7. CALCULATING AND RECO
44、RDING Calculate and record the burn rate for the conditions SE/B (3.4) and B (3.5) from Equation 1: TD60B g117g32 (Eq. 1) where: B = Burn rate, mm/min (rounded to one decimal) D = Length the flame travels starting from the first scribed line, mm (rounded to one decimal) T = Time (starting from the f
45、irst scribed line) for the flame to travel D, s 8. REPORT The following information shall be on the report. 8.1 Complete identification of the material tested, including generic description, manufacturer, commercial designation, and lot number, color and other information as requested. 8.2 Direction
46、ality of the specimens, if pertinent. 8.3 The thickness and type of specimens tested, that is, composite, laminate, finished section, cellular foam, etc. 8.4 Conditioning treatment. 8.5 Any prior treatment before testing, other than cutting, trimming and conditioning. 8.6 Number of specimens tested.
47、 8.7 Burnt distance in mm, and burning time, in seconds. 8.8 All calculated single values of burning rate, in mm/min. 8.9 Average burning rate in millimeters per minute when the flame reaches the specific end point. Report D and T separately for each specimen when the flame propagation stops before
48、reaching the end point. 8.10 The report shall contain the following statement: “This report is not intended to reflect hazards presented by this or any other material under actual fire conditions and shall not be used for fire risk assessment under actual fire conditions.” SAE J369 Revised JUN2013 P
49、age 9 of9. NOTES 9.1 Marginal Indicia A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in do
