Document KGdYJ7pJoyZBgw119x25DV87w

Engineering Material Specification VE8B-M8G145-A 3.8 TENSILE STRENGTH, min (ASTM F 39, except rate of extension shall be 25.4 mm/min) Original After h at 260C - After 24 h water immersion 470 psi (3.2 MPa) 270 psi (1.9 MPa) 178 psi (1.2 MPa) 3.9 WEIGHT (SAE J 315b) Original After 5 h at 260 C, Change, max After 24 h water immersion Change, max 0.25-0.29 lb/ft2 (1.24-1.44 kg/m2) -11% 57% 3.10 STIFFNESS (SAE J 949, 51 mm span) Original, max After 5 h at 260C, max After 24 h water immersion, min 10.2 x 105 psi (7.0 GPa) 8.4 x 10" psi (5.8 GPa) 2.5 x 109 psi (1.7 GPa) 73.11 FLAMMABILITY In order to comply with Federal Motor Vehicle Safety Standard No. 302, the materials, portions of components, and composites shall not burn, or transmit a flame across its surface, at a rate of more than 4 in (101 mm) per min. To demonstrate compliance, the sample size and method of testing shall be in accordance with FLTM BN 24-2. 3.12 PERFORMANCE - ENVIRONMENTAL AGING All materials, portions of components, and composites defined by this specification that have not been treated, modified or reformulated and exceed a max burn rate of 3.0 in (76 mm) per min as specified by the Flammability Lot Sempling Plan of FLTM BN 24-2, must be evaluated for permanency of the materials' flame retardant properties per ESB-.M25P3-A according to the accelerated environmental aging requirements applicable to the basic meterial category of this particular specification. .. Any material, portions of components, and composite' defineo by this specification that have been treated, modified or reformulated to conform to flammability Lot Sampling Pier, o: FLTM N 24-2. regardless of max bum rete. must be evaluated for " both permanency of materials' flame retardant properties and changes in mechanics1, chemical and physical properties per ESB-M25P3-A applicable to trie basic materials category of this particular specification. 3.13 FLAMMABILITY TEST PROGRAM Materials, portions of components, and composites governed by this specification must also comply with the requirements of V ES-D3AB-11014-AA. .. ** 6001 1407 Page -1 of _2 ppnrvr trpn pv pnan