1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1993 08 02 C10322319 Released N. KomatsuWP 3948-a Page 1 of 3 FABRIC, KNITTED WSD-M9H136-A1. SCOPEThe ma terial defined by this specification is a warp knitted polyamide orpolyester fabric.2. APPLIC
2、ATIONThis s pecification was released originally for material used as a backingfabric for the flame laminated DBR and Woven fabrics to polyester foam.3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStand ard Q-101. A mutually acceptable Control
3、 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 its option, may co
4、nduct 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 IR spectraand th
5、ermograms 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 24 h prior to te
6、sting and tested under thesame conditions unless otherwise specified.3.4 YARN SIZE AND TYPE Polyamide 44 dtex x f9 - 13(ASTM D 1244) Polyester 50 dtex x f9 - 503.5 CONSTRUCTION, min(ASTM D 3887)Wales 100 per 10 cmCourses 70 per 10 cmENGINEERING MATERIAL SPECIFICATIONWSD-M9H136-AWP 3948-b Page 2 of 3
7、 3.6 WEIGHT, min Polyamide 40 - 50 g/m2(FLTM BN 106-01) Polyester 45 - 55 g/m23.7 BREAKING STRENGTH, min(ASTM D 1682, Method GT)Wales 120 NCourses 120 N3.8 FOGGING(FLTM BO 116-03)Fog Number, min 60The formation of droplets or coalescence into a clear film is causefor rejection.3.9 ADDITIONAL REQUIRE
8、MENTSSpecific requirements for material and/or manufa ctured parts shall bespecified on the Engineering drawing, Engineerin g parts specificationand/or performance specifications. All critical areas with respect tothese properties shall be clearly designated on the engineeringdrawing.3.10 SUPPLIERS
9、RESPONSIBILITYAll materials 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 u
10、nder this specification, 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 Engineerin
11、gactivity. Test data, t 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.ENGINE
12、ERING MATERIAL SPECIFICATIONWSD-M9H136-AWP 3948-b Page 3 of 3 4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresponsible Materials Engineeri ng activity. Suppliers desiring approval ofthe ir materials shall first obtain an expression of interest from
13、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, signed by aqualified and authorized representative of the test faci lity, demonstratingful l com
14、pliance 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 suitabi
15、lity for i ntended processes and/or applications. Uponapprov al, the material will be added to the Engineering Material ApprovedSource List.5. GENERAL INFORMATIONThe information given below is provided for clarification and assistancein meeting the requirements of this specification.5.1 WIDTH As specified on the(ASTM D 3374) Engineering drawing
