1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1993 06 14 NB00I10043054260 Released B.H. Chen A.J. StockiWP 3948-a Page 1 of 4 BACKING FABRIC, NYLON KNIT, CONVERTIBLE BOOT WSB-M9H139-ACOVER1. SCOPEThe materi al defined by this specification is a
2、 tricot knit, piece dyednylon fabric of good commercial quality.2. APPLICATIONThis s pecification was released originally for material used as a backingfabri c as part of the Mustang convertible boot cover assembly. Otherappl ications must be approved by the responsible Materials EngineeringActivity
3、3. REQUIREMENTS3.1 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. Appropriatestatist ical tools must be used to analyze process/product data sothat
4、 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 to this specification.The IR spectra and thermograms established for i nitial appro
5、val 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 testedunder the same conditions.3.3 CONDITIONING AND TEST CONDITIONSAll test values indicate
6、d 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 testing and tested under thesame conditions unless otherwise specified.3.4 CONSTRUCTION, range 160 +/- 16 wales/100 mm (ASTM D 3887) 200 +/- 20 courses
7、/100 mm3.5 COMPOSITION 100 % nylon(ASTM D 629)ENGINEERING MATERIAL SPECIFICATIONWSB-M9H139-AWP 3948-b Page 2 of 4 3.6 YARN DESCRIPTION AND SIZE(ASTM D 1244)Face 4.4 tex f 28 (nylon, dull)Back 4.4 tex f 12 (nylon, dull)3.7 WEIGHT, min 28 g/m2(FLTM BN 106-01)3.8 BREAKING STRENGTH, min(ASTM D 1682, Gra
8、b Method)3.8.1 OriginalWales 300 NCourses 250 N3.8.2 After Xenon Exposure, Retained(SAE J1885, 225.6 kJ/m2)Wales 50 %Courses 40 %3.9 TEAR STRENGTH (Trapezoid), min(ASTM D 1117, *Integration Method)Wales 22 NCourses 9 N*As agreed to by the responsible Materials Engineering Activity.3.10 RESISTANCE TO
9、 ABRASION, min 150 cycles(FLTM BN 108-02, 500 g load, CS-10 wheel)No evidence of excessive abrasion or surface breaking.3.11 RESISTANCE TO FADE, min(SAE J1885, AATCC Evaluation Procedure 1)225.6 kJ/m2 Rating 33.12 RESISTANCE TO HEAT AGING, min Rating 4(7 days at 100 C, AATCC EvaluationProcedure 1)Ra
10、te by comparing the o verall difference, or contrast, of the testedspecimen and original t extile with the difference represented by theAATCC Gray Scale for Evaluating Change in Color (10 step). Noin dividual yarn or combination of yarns shall exhibit fiberdegradation or color tone change.3.13 RESIS
11、TANCE TO CROCKING, min(FLTM BN 107-01, AATCC Evaluation Procedure 1)Dry and Wet Rating 4ENGINEERING MATERIAL SPECIFICATIONWSB-M9H139-AWP 3948-b Page 3 of 4 3.14 RESISTANCE TO BLEEDING AND PERSPIRATION, min Rating 4(FLTM AN 101-01, AATCC Evaluation Procedure 3)3.15 SHRINKAGE, max(FLTM BN 105-01)Steam
12、 Wales 10 %Courses 10 %Heat (16 h at 120 C) Wales 10 %Courses 10 %3.16 FOGGING(FLTM BO 116-03)Fog Number, min 60The formation of droplets or coalescence into a clear film is causefor rejection.3.17 ODOR, max Rating 2(SAE J1351)3.18 FLAMMABILITY(ISO 3795/SAE J369)Burn Rate, max 100 mm/minute3.19 ADDI
13、TIONAL REQUIREMENTSSpecific 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
14、20 SUPPLIERS 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 ina
15、lly approved under 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 Materi
16、als Engineeringactivity. 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-M99P
17、9999-A1.ENGINEERING MATERIAL SPECIFICATIONWSB-M9H139-AWP 3948-b Page 4 of 4 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
18、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, signed by aqualified and authorized representative of the test faci lity, demonstr
19、atingful 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 anassessm
20、ent 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 of this specification.5.1 THICKNESS, nominal .55 mm
