1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Released1994 12 09 NB00I10043054406 Released D.W.W. A.J.S.WP 3948-a Page 1 of 5 FABRIC, NARROW WOVEN, WEATHERSEAL WSB-M99H148-A1. SCOPEThe material defined by this specification is a narrow w oven fabric of goodqua
2、lity and uniform composition.2. APPLICATIONThi s specification was released originally for a cover material used indoor weatherseals and moonroof retainer assemblies.3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStand ard Q-101. A mutually ac
3、ceptable Control Plan as describedtherein is required for material/source approval. Appropriatestatist ical tools must be used to analyze process/product data sothat variation in the final product is continuously reduced.3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Company, at it
4、s option, may conduct infrared and/ortherma l analysis of material/parts supplied to this specification.The IR spectra and thermograms established for i nitial approval shallconst itute the reference standard and shall be kept on file at thedesignated material laboratory. All samples sha ll produce
5、IR spectraand thermograms that correspond to the reference standard when testedunder the same conditions.3.3 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are based on ma terial conditioned ina control led atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than
6、24 h prior to testing and tested under thesame conditions unless otherwise specified.ENGINEERING MATERIAL SPECIFICATIONWSB-M99H148-AWP 3948-b Page 2 of 5 3.4 FABRIC CONSTRUCTION3.4.1 Fabric Count, +/- 5 % tolerance(ASTM D 3775)Pile 27.5 ends/cmFill 14.0 ends/cm3.4.2 Weight(FLTM BN 106-01)Fabric +/-
7、5 % 600 g/m2Backcoating, min 50 g/m23.5 COMPOSITION(ASTM D 629)Fabric 100 % Nylon 6,6Backcoating Neoprene, water-borne3.6 YARN CONSTRUCTION(ASTM D 1244)Pile 29.5 tex Z 630 tpm (nylon 6,6) x2 S 354 tpmBacking- warp 46.7 tex f68 (nylon 6,6)- fill 15.5 tex f68 (nylon 6,6)3.7 METHOD OF DYEING Yarn (pack
8、age) dyed3.8 FINISHING OPERATIONS Backcoat, slit to width3.9 THICKNESS 1.9 +/- 0.2 mm(SAE J882) (or as specified on theEngineering Drawing)3.10 ULTRAVIOLET DETERIORATION(SAE J1885)3.10.1 Retained Tensile, min225.6 kJ/m2 40 % retained (FLTM BN 117-03, Method A) strength*ENGINEERING MATERIAL SPECIFICA
9、TIONWSB-M99H148-AWP 3948-b Page 3 of 5 3.10.2 Surface Fiber Deterioration225.6 and 488.8 kJ/m2(FLTM BN 117-03, Method B)or XenotestNo excessive deterioration of fibers or yarns af ter xenon arcexposure. The resistance to deterioration of approvedproduc tion material shall be equal to or better than
10、thatexhibited by the Fabric Proposal and Master Sample approvedby Materials Engineering.3.11 COLOR PROPERTIES3.11.1 Resistance to Fade, min(SAE J1885, ISO 105-A02/AATCC Evaluation Procedure 1)150.4 kJ/m2 Rating 33.11.2 Resistance to Heat Aging, min Rating 3(7 days at 100 +/- 2 C,ISO 105-A02/AATCC Ev
11、aluationProcedure 1)No i ndividual yarn or combination of yarns shall exhibitfiber deterioration or color tone change in excess of theabove rating. Backcoatings, if applied, shall exhibit onlyslight color change and no deterioration.3.11.3 Resistance to Bleeding,Perspiration, and Spotting, min Ratin
12、g 4(FLTM AN 101-01 and AATCCEvaluation Procedure 3)In addition, the spotting sample shall not exhibitobjectionable rings or stain on its surface when spotted withwat er. The resistance to spotting of production materialshall be equal to or better than that exhibited by the MasterSample approved for
13、production by Materials Engineering.3.11.4 Resistance to Rubbing (Crocking)(FLTM BN 107-01, AATCC EvaluationProcedure 3; use instrumentalmethod, FLTM BN 107-02, whencolor transfer is visually apparent)RatingDry 4 (7.0 Delta E maximum)Distilled Water 4 (7.0 Delta E maximum)If an instrument with d iff
14、use geometry is used, the specularcomponent of reflectance shall be include in the measurement.ENGINEERING MATERIAL SPECIFICATIONWSB-M99H148-AWP 3948-b Page 4 of 5 NOTE: If a crock resul t is greater than 7.00 DE, repeat thecolorimeter measurement four (4) additional time s on the samesample and ave
15、rage all five (5) results to minimizemeasurement error. The average must be less tha n or equal to7. 00 DE. DO NOT conduct another crock test on the rollunless examination of t he original crock cloth indicates thetest was conducted improperly (e.g., uneven pressure of thecrock finger).3.12 FOGGING(
16、FLTM BO 116-03, 3 h at 100 +/- 2 C)Fog Number, min 60Formati on of a clear film, droplets or crystals is cause forrejection.3.13 ODOR, Rating, max 2(FLTM BO 131-01/SAE J1531)3.14 FLAMMABILITY(ISO 3795/SAE J369)Burn Rate, max 100 mm/minute3.15 STRETCH AND SET, %, range(SAE J885)Fabrics outside this r
17、ange may be accepted provided they have beenapprove d jointly by the Materials Engineering activity and theaffected Design Engineering and Development activity.Stretch, range Warp0 - 9Set, max* Warp3*At no time shall the s et exceed 40 % of the measured stretch unlessappr oved jointly by Materials E
18、ngineering and the affected DesignEngineering and Development activity.3.16 ADDITIONAL REQUIREMENTSSpecific requirements for material and/or manufa ctured parts shall bespecified on the Engineering drawing, Engineerin g parts specificationand/or performance specification. All critical areas with res
19、pect tothese properties shall be clearly designated on the engineeringdrawing.ENGINEERING MATERIAL SPECIFICATIONWSB-M99H148-AWP 3948-b Page 5 of 5 3.17 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristics to the material upon which approval w
20、asoriginally granted.Pri or to making any change in the properties, composition,constr uction, color, processing or labeling of the materialorig inally approved under this specification, whether or not suchchange s affect the materials ability to meet the specificationrequir ements, the Supplier sha
21、ll notify Purchasing, Toxicology andthe affected Materials Engineering activity of the proposed changesand obtain the written approval of the Materials Engineeringactivity. Test data, t est samples and a new code identification areto be submitted with the request.Substance restrictions imposed by la
22、w, regulations or Ford, apply tothe materials addressed by this document. The restrictions aredefined in Engineering Materials Specification WSS-M99P9999-A1.4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresp onsible Materials Engineering activity. Su
23、ppliers desiring approvalof thei r materials shall first obtain an expression of interest from theaffec ted Purchasing, Design and Materials Engineering activity. Uponrequest, the Supplier shall submit to the affected Materials Engineeringactivity a completed copy of their laboratory test reports, s
24、igned by aqualified and authorized representative of the test faci lity, demonstratingful l compliance with all the requirements of this specification (testresults, not nominal values), the material designation a nd code number, andtes t specimens for Ford evaluation. Fords engineering approval of amateri al will be based on its performance to this specification and on anassessment of suitability for intended processes and/or applications. Uponapprov al, the material will be added to the Engineering Material ApprovedSource List.
