1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1992 03 26 C10203480 Released J. JoshiWP 3948-a Page 1 of 3 FABRIC, POLYAMIDE (PA), KNITTED, 65 g/m2 WSD-M9H125-BFABRIC, BACKING, POLYAMIDE, KNITTED, 50 g/m2 WSD-M9H125-B21. SCOPEThe materials defin
2、ed by these specifications are warp knitted polyamidefabrics.2. APPLICATIONWSD-M9H1 25-B was released originally as a backing fabric for the flamelamina ted light weight warp knitted fabrics and/or as specified onEngineering drawing.WSD -M9H125-B2 was released originally as a backing fabric for the
3、flamelaminated high pile warp knitted fabrics.3. REQUIREMENTSIn addition to the requirements listed herein, these fabrics shall providesati sfactory performance for textile trilamination when tested inaccordance with WSB-M8P1-H.3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Fo
4、rd Quality SystemStand ard Q-101. A mutually acceptable 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 A
5、ND/OR THERMAL ANALYSISFord Motor Company, at its 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 m
6、aterial laboratory. All samples sha ll produce IR spectraand thermograms that correspond to the reference standard when testedunder the same conditions.ENGINEERING MATERIAL SPECIFICATIONWSD-M9H125-B/B2WP 3948-b Page 2 of 3 3.3 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are base
7、d on ma terial conditioned ina control led atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing and tested under thesame conditions unless otherwise specified.3.4 YARN SIZE AND TYPE(ASTM D 1244)No. 1 and No. 2 Bar 44 dtex f 9 - 133.5 COMPOSITION 100 % Poly
8、amide(ASTM D 629) 6 or 663.6 FABRIC CONSTRUCTION, per 10 cm(ASTM D 3887)B B2Wales 110 min 100 - 130Courses 160 min 130 - 1603.7 WEIGHT, g/m2 65 min 50 - 60(FLTM BN 106-01)3.8 BREAKING STRENGTH, N, min(ASTM D 1682, GT Method, 300 mm/minute, average of 5 sampleseach direction )Wales 150 150Courses 200
9、 1503.9 FOGGING(FLTM BO 116-03)Fog Number, min 60The formation of droplets or coalescence into a clear film is causefor rejection.3.10 ADDITIONAL REQUIREMENTSSpecific requirements for material and/or manufa ctured parts shall bespecified on the Engineering drawing, Engineerin g parts specificationan
10、d/or performance specifications. All critical areas with respect tothese properties shall be clearly designated on the engineeringdrawing.ENGINEERING MATERIAL SPECIFICATIONWSD-M9H125-B/B2WP 3948-b Page 3 of 3 3.11 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalen
11、t 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, whether or not suchchange s affect the materials ab
12、ility 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 est samples and a new code identification areto be s
13、ubmitted with the request.Substa nce restrictions imposed by law, regulations or Ford, apply toth e materials addressed by this document. The restrictions aredefined in Engineering Material Specification WSS-M99P9999-A1, unlessa differ ent suffix (e.g., A2 or A3) is specified on the engineeringdocum
14、ent for the application.4. APPROVAL OF MATERIALSMaterials defined by this specification must have prior approval by theresponsible Materials Engineeri ng activity. Suppliers desiring approval oftheir mat erials shall first obtain an expression of interest from theaffecte d Purchasing, Design and Mat
15、erials Engineering activity. Uponrequest, the Supplier shall submit to the affected Materials Engineeringact ivity a completed copy of their laboratory test reports, signed by aqualified and authorized repres entative of the test facility, demonstratingfu ll compliance with all the requirements of t
16、his specification (testresults, not nominal values), t he material designation and code number, andtest spec imens for Ford evaluation. Fords engineering approval of amateria l will be based on its performance to this specification and on anassess ment of suitability for intended processes and/or ap
17、plications. Uponapproval, the material will be added to the Engineering Material ApprovedSource List.5. GENERAL INFORMATIONThe information given below is provided for clarification and assistance inmeeting the requirements of this specification.5.1 WIDTH As specified on(ASTM D 3374) Engine ering drawing5.2 KNITTING SPECIFICATION CHAINS(WSD-M9H125-B2 only)B B2No. 1 Bar 1 - 0/3 - 4 1 - 0/2 - 3No. 2 Bar 1 - 2/1 - 0 1 - 2/1 - 0
