1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 27 N-STATUS Replaced by WSS-M99P32-C C. Mracna, NA 2004 11 22 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7 & 4 1989 08 31 Released SM/EQ7118 TP K. Gerhards Printed copies are uncontrolled Copyright 2009, Ford Global Technologi
2、es, LLC Page 1 of 2 POLYURETHANE (PUR) FOAM, OPEN CELL WSK-M2D389-A2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a completely open cell polyurethane foam with 100 pores per 100 mm. 2. APPLICATION This specification was released originally for material used as
3、 air outlet filter on the rear package tray. 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
4、sized cell structure with no large voids or cracks which may impair the serviceability of the part. 3.5 MOLDED TEST SPECIMEN 3.5.1 Density, min 27 kg/m3(ISO 845/ASTM D 3574, Test A) 3.5.2 Tensile Strength, min 130 kPa (ISO 1798/ASTM D 3574, Test E, 5 specimens minimum) 3.5.2.1 Elongation, min 180% (
5、test acc. to para 3.5.2) 3.5.3 Compression Set, max 15% (ISO 1856, Method A/ASTM D 3574, Test D, 22 h at 70 C, 50% deflection, 3 specimens, minimum) 3.5.4 Compression Deflection Stress 2.5 - 4.0 kPa (ISO 3386/1 at 40% compression, specimen size 100 x 100 x 50 mm, test speed 100 +/- 20 mm/min) 3.5.5
6、Humidity Ageing (Autoclave) (ISO 2440/ASTM D 3574, Test J, 3 h at 105 C) ENGINEERING MATERIAL SPECIFICATIONWSK-M2D389-A2Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 2 3.5.5.1 Compression Deflection Stress Change, max +/- 30% (Test acc. to para 3.5.4) 3.5.6
7、Cell Count 100 +/- 20 cells/100 mm Test Method: Cell count to be determined on a 1 mm thick sample placed on an overhead projector. 3.5.7 Fogging, min (FLTM BO 116-03) Fog Number, min 70 3.5.8 Odor, max Rating 2 (FLTM BO 131-01/SAE J1351) 3.5.9 Ash Content, max 1% (ISO 247, Method B/ASTM D 1278, 800 +/- 25 C) 3.5.10 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute
