1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 04 2012 01 26 N Status No Replacement Named A. Pan, APA 2006 01 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.11, 3.12 then measure and recalculate the percent cleanability. 3.5.11 Resistance to Abrasion (FLTM BN 108-02, 250 cycles, 5
2、00 g load, CS-10 wheels) The abraded area shall be compatible with the adjacent unabraded area. Production materials shall exhibit abrasion properties equal to or better than the sample approved by the Materials Engineering Activity. ENGINEERING MATERIAL SPECIFICATION WSB-M4D740-A2 Copyright 2012, F
3、ord Global Technologies, LLC Page 3 of 4 3.6 RESISTANCE TO HEAT AGING (ISO 188/ASTM E 145, Type IIA, 150 +/- 50 air changes/h, minimum space 2L/100 cm2 of specimen, 21 days (500 h), at 120 +/- 2 C) Test Method: Apply a production approved foam system to the reverse side of a sufficient number of she
4、et sections. Suspend test samples with 6 mm of foam in an air circulating oven at 120 +/- 2 C for 21 days. Remove and condition 24 h at standard atmosphere. 3.6.1 Color Stability Rating 3 (AATCC Evaluation Procedure 1/ISO 105-A02) After exposure, material shall show no evidence of tackiness, spewing
5、, or exhibit staining, color tone change, or change in hue in excess of specified Gray Scale rating. Any spotty or non-uniform staining or discoloration shall be cause for rejection. 3.6.2 Cold Flexibility No cracks (180 bend at -30 C over a 19 - 20 mm diameter mandrel, specimen size 50 x 150 mm) Re
6、move foam and bend with foam side of skin to mandrel at the specified temperature. 3.6.3 Elongation at Break, Change from original value, max -50% (Test according to para 3.5.5, (100% absolute with foam backing removed) elongation minimum) 3.7 RESISTANCE TO FADE (Expose specimens with 6 mm of foam a
7、s defined in para 3.6) After exposure in accordance with 3.7.1, 3.7.2, and 3.7.3, the material shall not stain, exhibit color tone change or change in hue in excess of specified Gray Scale rating (AATCC Evaluation Procedure 1/ISO 105-A02). In addition, there shall be no cracking, crazing or other de
8、terioration. The material must remain flexible and exhibit no cracking when bent around 19 - 20 mm mandrel after specified exposure. Remove foam and bend with foam side of skin to mandrel. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing
9、 with mild detergents and water (ratio 5:95 by volume), or equivalent, after the Florida exposure only. All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida and Arizona exposure results for final approval. ENGINEERING MATERIAL SPECIFICATION WSB-M4D740-A2 Cop
10、yright 2012, Ford Global Technologies, LLC Page 4 of 4 3.7.1 Xenon Arc Weatherometer (SAE J1885) 489 kJ/m2 exposure, guideline Rating 4.5 1015 kJ/m2 exposure, guideline Rating 4.0 1504 kJ/m2 exposure, guideline Rating 3.5 1993 kJ/m2 exposure, min Rating 3.0 3.7.2 Florida and Arizona (NAAO only) (SAE
11、 J2230) 1500 kJ/m2 at 340 nm Rating 4.0 3000 kJ/m2 at 340 nm Rating 3.0 3.7.3 Florida (EAO only) (FLTM BI 160-01, 5 south, under glass, specimen size: 100 x 150 mm) 12 months Rating 4.0 3.8 ODOR, max Rating 2 (FLTM BO 131-01/SAE J1351) 3.9 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number, min 70 Fo
12、rmation of a clear film or droplets is cause for rejection. 3.10 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 RECYCLING CODE PVC+ABS
