1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1995 02 17 Activated D.R. Henrickson L.A. GrahamWP 3948-a Page 1 of 4 CARPET, POLO PATTERN, 100% RECYCLED POLYESTER FIBER, WSS-M3H105-A4FLAT NEEDLED, NON-BACKCOATED1. SCOPEThe mate rial defined by this specificat
2、ion is a flat needled, polyester,nonwov en carpet of good quality and uniform composition. It uses 220 g/mminimum 100 % recycled polyester from post consumer sour ces (100 % of totalweight).2. APPLICATIONThis specification was released originally for material used for trunkcovering material for the
3、1995 Taurus. This material mu st always be bonded100 % to another material to form a composite to lock in the surface fibersand minimize fiber loss due to wear. The composite must not burn in excessof 100 mm/minute.3. REQUIREMENTSIn add ition to the requirements listed herein, the end-item carpetass
4、embl y, molded or otherwise fabricated, shall meet all the applicablerequirements of WSB-M15P32-B.3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStand ard Q-101. A mutually acceptable Control Plan as describedtherein is required for material/source approval.
5、 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 its option, may conduct infrared and/ortherma l analysis of material/parts supplied t
6、o 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 IR spectraand thermograms that correspond to the reference standard when testedunde
7、r the same conditions.ENGINEERING MATERIAL SPECIFICATIONWSS-M3H105-A4WP 3948-b Page 2 of 4 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 24 h prior to
8、testing and tested under thesame conditions unless otherwise specified.3.4 SAMPLE SELECTIONAll evaluations shall be conducted on test specimens taken fromproduction representative carpet.3.5 COMPOSITION(ASTM D 276)Fiber 100 % polyesterBackcoating None3.6 METHOD OF DYEING Solution dyed or equivalent3
9、.7 CONSTRUCTION3.7.1 Fiber Size & Description 6.7 dtex (polyester)(ASTM D 1244)3.7.2 Thickness 3.0 +/- 1.0 mm(ASTM D 461, 1.4 kPa load,140 mm dia foot)3.8 WEIGHT, range*(FLTM BN 106-01)Face Fiber, 220 - 255g/m2*Unless otherwise noted on engineering drawings.3.9 PHYSICAL PROPERTIES3.9.1 Shrinkage, ma
10、x 1.5 %(FLTM BN 105-01)3.9.2 Breaking Strength, min(ASTM D 5034, Grab Method,305 mm/minute jaw speed)MD 275 NAMD 475 NENGINEERING MATERIAL SPECIFICATIONWSS-M3H105-A4WP 3948-b Page 3 of 4 3.9.3 Trapezoidal Tear, min(ASTM D 1117, Integration Method*)MD 135 NAMD 135 N*As approved by the responsible Mat
11、erials Engineeringactivity.3.10 FLAMMABILITY(ISO 3795/SAE J369)Burn Rate, max 100 mm/minute*Tested ascomposite*This ma terial must always be bonded 100 % to another material tofor m a composite, and the composite must not burn in excess of 100mm/minute.3.11 ADDITIONAL REQUIREMENTSSpecific requiremen
12、ts for material and/or manufa ctured parts shall bespecified on the Engineering drawing, Engineerin g parts specificationand/or performance specifications. All critical areas with respectto these properties shall be clearly designated on the engineeringdrawing.3.12 SUPPLIERS RESPONSIBILITYAll materi
13、als supplied to this specification must be equivalent inal l characteristics to the material upon which approval wasoriginally 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,
14、 whether or not suchchange s affect the materials ability to meet the specificationrequir ements, the Supplier shall notify Purchasing, Toxicology andthe affected Materials Engineering activity of the proposed changesand obtain the written approval of the Materials Engineeringactivity. Test data, t
15、est samples and a new code identification areto be submitted with the request.Substance restrictions imposed by law, regulations or Ford, apply tothe materials addressed by this document. The restrictions aredefined in Engineering Material Specification WSS-M99P9999-A1.ENGINEERING MATERIAL SPECIFICA
16、TIONWSS-M3H105-A4WP 3948-b Page 4 of 4 4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresp onsible Materials Engineering activity. Suppliers desiring approvalof thei r materials shall first obtain an expression of interest from theaffec ted Purchasing
17、, Design and Materials Engineering activity. Uponrequest, the Supplier shall submit to the affected Materials Engineeringactivity a completed copy of their laboratory test reports, signed by aqualified and authorized representative of the test faci lity, demonstratingful l compliance with all the re
18、quirements 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 i ntended processes and/or applications. Uponapprov al, the material will be added to the Engineering Material ApprovedSource List.5. GENERAL INFORMATIONThe information below is provided for clarification and assistance inmeeting the requirements to the specification.5.1 RECYCLING CODEPET
