1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions Rev. 2 2008 11 05 N-STATUS Replaced by WSS-M8P16-B L. Sinclair, FNA 2001 10 22 Activated M. Dumitrescu Printed copies are uncontrolled Page 1 of 4 Copyright 2008, Ford Global Technologies, Inc. CARPET, BCF N
2、YLON, LOW LOOP PILE, PRECOATED, 670g/m2WSS-M3H128-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a bulked continuous filament (BCF) nylon, low loop pile carpet, tufted into a synthetic primary foundation and then precoated. The precoated carpet is then laminat
3、ed to a barrier material for improved fit and acoustical properties. 2. APPLICATION This specification was released originally for material used for full floor applications on 2003 Ford vehicles. 3. REQUIREMENTS In addition to the requirements listed herein, the end-item carpet assembly (molded or o
4、therwise fabricated), shall meet all requirements of the WSS-M8P16-A performance specification for full floor applications. Material specification requirements are to be used for initial qualification of materials. 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must conform to
5、 the Companys Quality System Requirements. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS 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 samples shall produce IR spectra
6、and thermograms that correspond to the reference standard when tested under the same conditions. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h pr
7、ior to testing and tested under the same conditions unless otherwise specified. ENGINEERING MATERIAL SPECIFICATION WSS-M3H128-A Page 2 of 4 Copyright 2008, Ford Global Technologies, Inc. 3.4 SAMPLE SELECTION All evaluations shall be conducted on test specimens taken from finished roll goods prior to
8、 any subsequent operations, 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 66 Primary Foundation Material
9、 * Pre-coat * * As specified on the Approved Source List * As required to achieve specified tuft lock and fiber weight loss requirements per WSS-M8P16-A 3.7 CONSTRUCTION 3.7.1 Pile Yarn (ASTM D 418) (crimped texture, bulked continuous filament nylon) x 2; B 260 280 tex 3.7.2 Pile Count, min (ASTM D
10、418) Rows 39.3/100 mm Stitches 55.0/100 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-M3H128-A Page 3 of 4 Copyright 2008, Ford Global Technologies, Inc. 3.7.3 Foundation Mat
11、erials Primary (Tufting Foundations) * * As specified on the Approved Source List 3.7.4 Backcoating The pre-coat shall form a continuous and uniform coating over the back of the carpet so that all pile fibers are covered. The pre-coat shall be thoroughly melted and shall maintain its ability to lock
12、 in the pile fibers in the end-item, molded carpet assembly. The pre-coat shall thoroughly saturate the base of the pile fiber bundles to ensure adequate tuft lock. Penetration of the pre-coat through to the face shall be controlled to provide the required resistance to abrasion and fiber loss, but
13、the backcoating shall not be visible on the face of the pile fiber. 3.7.5 Needle Gauge 2.5 mm 3.7.6 Pile Height, min 3.9 mm (ASTM D 418) 3.8 WEIGHT, g/m2, minimum (ASTM D 418/FLTM AN 102-02) Pile Yarn 670 Primary Foundation Material * Pre-coat * * As specified on the Approved Source List * As requir
14、ed to meet the tuft pull, fiber weight loss, abrasion requirements on the end item molded carpet per WSS-M8P16-A 3.9 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute ENGINEERING MATERIAL SPECIFICATION WSS-M3H128-A Page 4 of 4 Copyright 2008, Ford Global Technologies, Inc. 3.10 ADDITIONA
15、L REQUIREMENTS Additional requirements for material and/or manufactured parts may be specified on the Engineering drawing, Engineering parts specification, performance specification, System Design Specification (SDS) and/or Component Design Specification (CDS). 3.11 SUPPLIERS RESPONSIBILITY All mate
16、rials supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved under this specification, whether or not such changes affect the materials ability to meet the sp
17、ecification requirements, the Supplier shall notify the affected Purchasing, and Materials Engineering activities (with reasons) of the proposed changes. Upon notification of the Company, further instructions will be provided. Note: Suppliers should be prepared to provide test data and samples demon
18、strating compliance to this specification, if requested. Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in Restricted Substance Management Standard WSS-M99P9999-A1. 4. APPROVAL OF MATERIALS Mater
19、ials defined by this specification for direct supply to the Company must have prior approval. Certain materials subcontracted by part suppliers may also require prior approval. These include materials critical to the Companys business for regulatory, safety, environmental or compatibility requiremen
20、ts or contractual agreements. Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Materials Engineering activity. Upon request, the Supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and au
21、thorized representative of the test facility, demonstrating full compliance with all the requirements of this specification. 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
