1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2016 10 26 N Status Replaced by WSS-M99P48-A1/2/3 L. Sinclair, NA 2004 09 20 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.8, 3.9 & 4 deleted 1991 10 10 Released CE00E10109215011 C. F. Carter Copyright 2016, Ford Global Technologies, LLC P
2、age 1 of 2 POLYURETHANE (PUR) FOAM, WSH-M2D410-A BACTERIA/FUNGUS RESISTANT NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a flexible polyether polyurethane foam. 2. APPLICATION This specification was released originally for material used in the plenum to evapora
3、tor seal. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 APPEARANCE The foam shall have a homogeneous medium sized cell structure with no large
4、voids or cracks which may impair the serviceability of the part. 3.5 TEST SPECIMEN The following material properties shall be determined on specimens taken from the core, 6 - 10 mm from the surface skin, unless otherwise specified. These specimens shall be free of voids, hard spots and densification
5、 lines. 3.5.1 Density, Core, min 24 kg/m3 (ISO 845/ASTM D 3574, Test A) 3.5.2 Tensile Strength, min 83 kPa (ISO 1798/ASTM D 3574, Test E, 50 mm bench marks, 5 specimens min) 3.5.2.1 Elongation at Break, min 100% (Test acc. to para 3.5.2) 3.5.3 Tear Strength, min 175 N/m (ISO 8067/ASTM D 3574, Test F
6、, 50 mm/min test speed) 3.5.4 Compression Set, max 40% (ISO 1856, Method A/ASTM D 3574, Test D, 22 h at 70 C, 50% deflection, 3 specimens min) ENGINEERING MATERIAL SPECIFICATION WSH-M2D410-A Copyright 2016, Ford Global Technologies, LLC Page 2 of 2 3.5.5 Compression Deflection Stress, max 7.0 kPa (I
7、SO 3386-1, 40% compression, 100 x 100 x 50 mm specimen) 3.5.6 Heat Aging (ISO 2440/ASTM D 3574, Test K, 22 h at 140 +/- 2 C) 3.5.6.1 Compression Deflection 5.0 kPa Stress Change, max (Test acc. to para 3.5.5) 3.5.6.2 Low Temperature No cracking or crumbling Test Method: After heat aging in a convect
8、ion oven for 22 h at 140 +/- 2 C, expose 100 x 100 x 50 mm specimen for 16 h at -40 +/- 1 C. Bend 180 over temperature conditioned 25 mm diameter mandrel. 3.5.7 Humidity Aging (AUTOCLAVE) (ISO 2440/ASTM 3574, Test J, 100 x 100 x 50 mm specimen, 5 h at 120 C) 3.5.7.1 Compression Deflection Stress Cha
9、nge, max 20% (Test according to para 3.5.5) 3.5.8 Fogging (FLTM BO 116-03) Fog Number, min 70 The formation of droplets or coalescence into a clear film is cause for rejection. 3.5.9 Air Flow, max 10 m3/m2/minute (ASTM D 3574, Test G) 3.5.10 Water Impermeability, min .75 Kpa (FLTM BO 112-03) 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 3.7 SPECIAL REQUIREMENTS 3.7.1 Resistance to Bacteria/Fungus Growth Must pass (ES-D8VH-19A672-AA)
