1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1993 05 12 NB00I10043054250 Released DRH KPMWP 3948-a Page 1 of 4 WEBBING, NYLON, ANCHOR BELT, HIGH STRENGTH WSB-M7H52-A1. SCOPEThe mat erial defined by this specification is a nylon webbing woven w
2、ithcontinuo us filament yarns and finished selvages. Proper dyes and dyeingproced ures shall be employed to provide acceptable color, appearance, andphysical p roperties. This webbing may have a surface finish applied inorder to meet all requirements of this specification. Color stripping forredyein
3、g of webbing rejected fo r color is not approved. The webbing shallbe of good quality and uniform construction.2. APPLICATIONThis s pecification was released originally for and restricted to materialused as a t ether belt to restrain seat assemblies and no buckles oradjustment hardware shall be empl
4、oyed.3. REQUIREMENTS3.1 QUALITY SYSTEM REQUIREMENTSMaterial suppliers and part producers must conform to Quality SystemRequirements, QS-9000. Material specification r equirements are to beused fo r initial qualification of materials. A Control Plan forong oing production verification is required. Th
5、is plan must bereviewed and approved b y the relevant Ford Materials activity and/orFor d Supplier Technical Assistance (STA) prior to production partssubmission. Appropriate statistical tools must be used to analyzepr ocess/product data and assure consistent processing of thematerials.Part producer
6、s using this material in their products, must use Fordapproved materials and must conform to a process control plan whichhas been approved by STA and/or the relevant Materials Activity.3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Company, at its option, may conduct infrared and/o
7、rtherma 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 thermograms that corre
8、spond to the reference standard when testedunder the same conditions.ENGINEERING MATERIAL SPECIFICATIONWSB-M7H52-AWP 3948-b Page 2 of 4 3.3 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are based on material conditionedin a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relati
9、vehumidity for not less than 24 h prior to testing and tested underthe same conditions unless otherwise specified.3.4 APPEARANCE(FLTM BI 109-01)The color, pattern, and finish shall match the approved sample, orshall be as specified on the engineering drawing.Note: This webbing is to be manufactured
10、in a two-panel weaveconstruction.3.5 THICKNESS 2.62 +/- 0.15 mm(SAE J882)3.6 WIDTHMeasured at less than 22 N load. minimum 42.5 mm. maximum 46.5 mm3.7 COMPOSITION(ASTM D 629)Nylon, Type 6 or Type 66 100 %3.8 WEIGHT, min 8.5 kg/100 m3.9 BREAKING STRENGTH, min 44 480 N(FMVSS 209, S5.1(b)3.10 RESISTANC
11、E TO LIGHT, min 87 % of original(FMVSS 209, S5.1(e) breaking strength3.11 RESISTANCE TO FADE, min Rating 2(SAE J1885, 150.4 kJ/m2, AATCC EvaluationProcedure 1)No individual yarn or combination of yarns shall fade, stain orexhibit any color tone change, nor shall the yarns change in hue orbrightness
12、in excess of the above ratings.3.12 COLORFASTNESS TO CROCKING, WET AND DRY, min Rating 2(FLTM BN 107-02, AATCC Evaluation Procedure 2)3.13 COLORFASTNESS TO STAINING-BLEEDING, min Rating 2(FLTM AN 101-01, AATCC Evaluation Procedure 2)3.14 COLORFASTNESS TO STAINING-PERSPIRATION, min Rating 2(FLTM AN 1
13、01-01, AATCC Evaluation Procedure 2)ENGINEERING MATERIAL SPECIFICATIONWSB-M7H52-AWP 3948-b Page 3 of 4 3.15 FOGGING(FLTM BO 116-03, 3 h at 100 EC)Fog Number, min 60The formation of droplets or coalescence into a clear film is causefor rejection.3.16 FLAMMABILITY(ISO 3795/SAE J369)Burn Rate, max 100
14、mm/minute3.17 ADDITIONAL REQUIREMENTSSpecific requirements for material and/or manufactured parts shallbe specified on the Engineering drawing, Engineering partsspecification and/or performance specification. All critical areaswith respect to these properties shall be clearly designated on theengine
15、ering drawing.3.18 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 m
16、aterialorig inally 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 approva
17、l of the Materials 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 Materials Specif
18、ication WSS-M99P9999-A1.ENGINEERING MATERIAL SPECIFICATIONWSB-M7H52-AWP 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
19、 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, signed by aqualified and authorized representative of the test faci
20、 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.
