1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Released1994 05 10 NB00I10043054328 Released A2 D.Henrickson AJS BCF1993 12 10 NB00I10043054302 Released A G.E. Hess A.J. Stocki B. FernsWP 3948-a Page 1 of 5 CARPET, POLYPROPYLENE, DILOUR, NEEDLED, MOLDABLE WSB-M3
2、H104-ACARPET, POLYPROPYLENE, DILOUR, NEEDLED, LATEX BACKCOATED WSB-M3H104-A21. SCOPEThe materials defined by these specifications are dilour , needled, nonwovencarpets of good quality and uniform composition. WSB-M3 H104-A is precoatedwith a synthetic latex and has a polyethylene backcoating. WSB-M3
3、H104-A2is backcoated with a synthetic latex.2. APPLICATIONWSB-M3 H104-A was originally released for material used as a moldable loadfloor covering for sport utility and station wagon vehicles.WSB-M3H1 04-A2 was originally released for material used as a seat backcovering material for sport utility a
4、nd station wagon vehicles.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 pr
5、ocess/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 in frared and/or thermalana lysis of materials/parts supplied to this specification. The IRspectra and thermograms esta
6、blished for initial 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 testedunder the same conditions.3.3 CONDITIONING AND TEST CONDITION
7、SAll test values indicated herein are based on materials conditionedin a co ntrolled 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.ENGINEERING MATERIAL SPECIFICATIONWSB-M3H104-A/A2WP 394
8、8-b Page 2 of 5 3.4 SAMPLE SELECTIONAll evaluations shall be conducted on test specimens taken fromproduction representative molded carpet assemblies. Test specimensfor strength properties shall be taken from molded or stressed areasof the carpet assembly.3.5 FOGGING(FLTM BO 116-03, 3 h at 100 C)Fog
9、 Number, min 60Formation of excessive amounts of clear film or droplets is cause forrejection.3.6 APPEARANCE(FLTM BN 109-01)The color, pattern and finish shall match the approved Design Centermaster sample, or shall be as specified on the engineering drawing.3.7 COMPOSITION(ASTM D 274)A A2Fiber 100
10、% polypropylene, 100 % polypropylene,UV resistant UV ResistantPrecoat Latex -Backcoating Polyethylene Latex3.8 METHOD OF DYEING (A & A2) Solution dyed or equivalent3.9 CONSTRUCTION (A & A2)3.9.1 Fiber Size & Description 20 - 22 dtex (polypropylene(ASTM D 1244) pigmented dyed, 76 - 82 mmstaple)3.9.2
11、Pile Height, min 7.6 mm(ASTM D 418)ENGINEERING MATERIAL SPECIFICATIONWSB-M3H104-A/A2WP 3948-b Page 3 of 5 3.10 WEIGHT, g/m2, Range(FLTM BN 106-01)A A2Pile Fiber 440 - 510 440 - 510Latex precoat 100 - 170 -Polyethylene backcoating 270 - 340 -Latex Backcoating - 100 - 170Total 810 - 1020 540 - 6803.11
12、 PHYSICAL PROPERTIES3.11.1 Breaking Strength, min(ASTM D 1682, Grab Method)MD 445 NAMD 445 N3.11.2 Heat Shrinkage, max 2.5 %(FLTM BN 105-01, both directions,except instead of water, exposesample to 7 days at 82 C)3.11.3 Dimensional Stability, max 1.0 %(FLTM BN 105-03, 4 days, bothdirections)3.11.4 T
13、rapezoidal Tear, both directions, min 200 N(ASTM D 1117, Integration Method*)*As approved by the responsible Materials EngineeringActivity.3.12 WEAR PROPERTIES3.12.1 Abrasion, min(SAE J1530A, H-10 wheels,500 g load)The material shall exhibit no evidence of excessivepe netration to the foundation of
14、the pile fibers in theab raded area. Production material shall be equal to orbe tter than that exhibited by the Carpet Proposal approvedfor production by the Interior Materials Enginee ring Section.3.12.1.1 Original 1200 cycles3.12.1.2 Aged 488.8 kJ/m 2 1000 cycles(SAE J1885)ENGINEERING MATERIAL SPE
15、CIFICATIONWSB-M3H104-A/A2WP 3948-b Page 4 of 5 3.12.2 Resistance to Snagging, min 50 cycles(SAE J1530A, 500 g, H-18 wheels)Af ter testing, the specimen shall not show any signs ofsur face snagging or pilling of individual fibers or yarnsgreater than the sample originally approved by the MaterialsEng
16、ineering Activity.3.13 APPEARANCE PROPERTIES3.13.1 Resistance to Fade, min(SAE J1885 and AATCC Evaluation Procedure 1)Xenon Arc Exposure Rating 3488.8 kJ/m2The mate rial shall be rated after exposure using the AATCCGray Scale for Evaluating Change in Color (10 Step).Production materials sh all exhib
17、it fade resistance qualitiesequal to or better than the Master Sample approved forproduction by the Interior Materials Engineering Section.3.13.2 Fiber DeteriorationNo excessive deterioration of fibers or yarns af ter the abovexenon arc exposure. The resistance to deterioration ofproduc tion materia
18、l shall be equal to or better than thatexhib ited by the master sample approved by the InteriorMaterials Engineering Section.Test Method: Firmly apply a piece of 3Ms Highland Brand6200 P ermanent Mending Tape to the surface of the exposedfabric (yarn). Then rapidly strip the tape and mount it ona sh
19、eet of light or dark cardstock which contrasts with thecolor of the fiber. Repeat the test with a new piece of tapeon a unexposed sample a nd compare the length and quantity offibers removed by the t ape. Report fiber deterioration if asi gnificantly larger number of fibers (usually of shorterlength
20、s) are removed from the exposed versus unexposedsample.3.13.3 Heat Aging, min Rating 4-5(7 days at 102 C andAATCC Evaluation Procedure 1)No i ndividual yarn or combination of yarns shall exhibitfib er degradation or color tone change. Backcoatings, ifapplied, shall exhibit no color change or degrada
21、tion.3.13.4 Bleeding and Perspiration, min Rating 4(FLTM AN 101-01 andAATCC Evaluation Procedure 3)Compa red to the AATCC Chromatic Transference Scale (latestedition).ENGINEERING MATERIAL SPECIFICATIONWSB-M3H104-A/A2WP 3948-b Page 5 of 5 3.13.5 Dry and Wet Crocking, min Rating 4(FLTM BN 107-01 and A
22、ATCCEvaluation Procedure 3)3.14 FLAMMABILITY(ISO 3795/SAE J369)Burn Rate, max 100 mm/minute3.15 ADDITIONAL REQUIREMENTSSpecific requirements for material and/or manufa ctured parts shall bespecified on the Engineering drawing, Engineerin g parts specificationand/or performance specifications. All cr
23、itical areas with respectto these properties shall be clearly designated on the Engineeringdrawing.3.16 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristics to the material upon which approval wasoriginally granted.Pr ior to making any change
24、s 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 ability to meet the specificationrequir ements, the Supplier shall notify Purchasing, Toxicology andthe affecte
25、d 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 submitted with the request.Substance restrictions imposed by law, regulations or Ford apply tothe materials ad
26、dressed by this document. The restrictions aredefined in Engineering Material specification WSS-M99P9999-A1.4. APPROVAL OF MATERIALSMateria ls defined by this specification must have prior engineeringappr oval by the responsible Materials Engineering activity. Suppliersdesiring approval of their mat
27、erials shall first obtain an expression ofint erest from the affected Purchasing, Design and Materials Engineeringactivity . Upon request, the Supplier shall submit to the affectedMaterials Engineering activity a completed copy of their laboratory testreports, signed by a qualified and authorized re
28、presentative of the testfacili ty, demonstrating full compliance with all the requirements of thisspecification (test results, no t nominal values), the material designationand code number, and test specimens for Ford evaluation. Fordsengineering approval of a material will be based on its performance to thisspecification and on an assessment of suitability for intended processesan d/or applications. Upon approval, the material will be added to theEngineering Material Approved Source List.
