1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions Ver. 3 2008 10 29 N-STATUS No Replacement Named L. Sinclair, FNA 2000 07 21 Rev para. 3 & 3.72 M. Dumitrescu 2000 03 30 Activated M. Dumitrescu Printed copies are uncontrolled Page 1 of 4 CARPET, BCF NYLON,
2、ITAL PATTERN, LATEX BACKCOATED, WSS-M3H124-A 220g/m2NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a bulked continuous filament (BCF) nylon, cut pile carpet, tufted into a synthetic primary foundation. WSS-M3H124-A is then coated with a latex backcoating. 2. APP
3、LICATION WSS-M3H124-A was originally released for material used for interior trim applications, such as door panel and load floor 3. REQUIREMENTS In addition to the requirements listed herein, the end-item carpet assembly (molded or otherwise fabricated) shall meet all requirements of the WSS-M8P16-
4、A & WSS-M15P4-E performance specification for trim applications. 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must conform to Quality System Requirements, QS-9000. Material specification requirements are to be used for initial qualification of materials. A Control Plan for o
5、ngoing production verification is required. This plan must be reviewed and approved by the relevant Ford Materials activity and/or Ford Supplier Technical Assistance (STA) prior to production parts submission. Appropriate statistical tools must be used to analyze process/product data and assure cons
6、istent processing of the materials. Part producers using this material in their products, must use Ford approved materials and must conform to a process control plan which has been approved by STA and/or the relevant Materials Activity. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Mot
7、or Company, at its option, may conduct infrared and/or thermal analysis of material/parts supplied to this specification. The IR spectra and thermograms established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All sampl
8、es shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. ENGINEERING MATERIAL SPECIFICATION WSS-M3H124-A Page 2 of 4 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditioned in a contro
9、lled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. 3.4 SAMPLE SELECTION All evaluations shall be conducted on test specimens taken from finished roll goods prior to any subsequent ope
10、rations, such as reheating or molding. 3.5 APPEARANCE (FLTM BI 109-01) The color, pattern, and finish shall match the approved Design Center master sample, or shall be specified on the engineering drawing. 3.6 COMPOSITION (ASTM D 276) Pile Yarn Nylon Primary Foundation Material * Backcoating Latex *
11、 * As specified on the Approved Source List * As required to achieve specified tuft lock and fiber weight loss per performance specification WSS-M8P16-A 3.7 CONSTRUCTION 3.7.1 Pile Yarn (ASTM D 418) 105 - 115 tex t0 (nylon, crimped texture, bulked continuous filament, 1.0 - 1.5 tex) 3.7.2 Pile Count
12、, min (ASTM D 418) Rows 50.4/100 mm Stitches 44.1/100 mm Rows and stitches per 100 mm shall be based on an average count on a 254 mm length of carpet and shall not exceed minus 2/100 mm. ENGINEERING MATERIAL SPECIFICATION WSS-M3H124-A Page 3 of 4 3.7.3 Foundation Materials Primary (Tufting Foundatio
13、ns) * * As specified on the Approved Source List 3.7.4 Backcoating 3.7.4.1 Latex The latex shall form a continuous and uniform coating over the back of the carpet so that all pile fibers are covered. The latex shall be thoroughly cured and shall maintain its ability to lock in the pile fibers in the
14、 end-item, molded carpet assembly. The latex shall thoroughly saturate the base of the pile fiber bundles to ensure adequate tuft lock. Penetration of the latex through to the face shall be controlled to provide the required resistance to abrasion and fiber loss, but the backcoating shall not be vis
15、ible on the face of the pile fiber. 3.7.5 Needle Gauge 1.98 mm 3.7.6 Pile Height, min 2.5 mm (ASTM D 418) 3.8 WEIGHT, g/m2, range (ASTM D 418/FLTM AN 102-02) Pile Yarn 220 - 270 Primary Foundation Material * Latex 204 280 * As specified on the Approved Source List 3.9 FLAMMABILITY (ISO 3795/SAE J369
16、) Burn Rate, max 100 mm/minute 3.10 ADDITIONAL REQUIREMENTS Specific requirements for material and/or manufactured parts shall be specified on the Engineering drawing, Engineering parts specification and/or performance specification. All critical areas with respect to these properties shall be clear
17、ly designated on the engineering drawing. ENGINEERING MATERIAL SPECIFICATION WSS-M3H124-A Page 4 of 4 3.11 SUPPLIERS RESPONSIBILITY All materials supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any c
18、hange in the properties, composition, construction, color, processing or labeling of the material originally approved under this specification, whether or not such changes affect the materials ability to meet the specification requirements, the Supplier shall notify Purchasing, Toxicology and the af
19、fected Materials Engineering activity of the proposed changes and obtain the written approval of the Materials Engineering activity. Test data, test samples and a new code identification are to be submitted with the request. Substance restrictions imposed by law, regulations or Ford, apply to the ma
20、terials addressed by this document. The regulations are defined in Engineering Materials Specification WSS-M99P9999-A1. 4. APPROVAL OF MATERIALS Materials defined by this specification must have prior approval by the responsible Materials Engineering activity. Suppliers desiring approval of their ma
21、terials shall first obtain an expression of interest from the affected Purchasing, Design and Materials Engineering activity. Upon request, the Supplier shall submit to the affected Materials Engineering activity a completed copy of their laboratory test reports, signed by a qualified and authorized
22、 representative of the test facility, demonstrating full compliance with all the requirements of this specification (test results, not nominal values), the material designation and code number, and test specimens for Ford evaluation. Fords engineering approval of a material will be based on its perf
23、ormance to this specification and on an assessment of suitability for intended processes and/or applications. Upon approval, the material will be added to the Engineering Material Approved Source List. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. The original carpet construction approved under this specification employed a primary backing as follows: 5.1 COMPOSITION (ASTM D 276) Primary Foundation Material 100 % Polyester
