1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Changes 2011 06 17 N Status Replaced by WSS-M15P50-B G. Kowalski, FNA 1993 09 01 EP00E10258825000 Revised para 3.9; 3.15 & 3.18 L. Rodigas 1990-06-01 EP00E01031536000 Released L. Rodigas WP 3948-a Page 1 of 8 FINISHED
2、 PARTS, PLASTICS, NON-DECORATIVE WSK-M98P9-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines performance requirements for finished non-decorative plastic parts consisting of one or various components and/or materials. 2. APPLICATION These parts are generally used for various non-de
3、corative plastic parts used in the engine compartment or similar applications. 3. REQUIREMENTS General Definitions regarding Requirements and Test Methods Test requirements vary in respect of application and are defined by the methods as specified (see Table 1). Specified test requirements (test con
4、ditions) are as specified on Engineering drawing for the finished part (see Table 1). Test according to para 3.4, 3.5, 3.6, 3.7, and 3.8 of Table 1 shall be carried out on the complete finished part or a representative section of the finished part containing all materials. Each material shall be eva
5、luated separately. Requirements (from para 3.9 onwards) shall be tested separately for each material group (see Table 1). They shall be tested only if not already tested to individual material specification requirements as quoted on Engineering Drawing. 3.1 STATISTICAL PROCESS Suppliers must conform
6、 to the requirements of Ford Quality System Standard Q-101. A mutually acceptable Control Plan as described therein is required for material/source approval. Appropriate statistical tools must be used to analyze process/product data so that variation in the final product is continuously reduced. ENG
7、INEERING MATERIAL SPECIFICATION WSK-M98P9-A WP 3948-b Page 2 of 8 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor 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 in
8、itial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. 3.3 CONDITIONING AND TEST CONDITIONS All test
9、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 prior to testing and tested under the same conditions unless otherwise specified. 3.4 APPEARANCE The finished part must be free of pores, foreign
10、 matters, cracks or any other failure which may affect its use. 3.5 HEAT AGING The finished part shall show no visible evidence of warpage, deformation, cracks, delamination or other failures to an extent that would affect its use in the ultimate assembly. There shall be no local shrinkage where the
11、 part has been gated which would interfere with assembly to relating parts, or affect its appearance. The finished part shall show no change in appearance when compared with the original part. Test Methods: One of the following test conditions shall be chosen according to application and shown on En
12、gineering Drawing. 3.5.1 Condition A Mount the finished part according to vehicle installation on a suitable fixture and place it in car position in a mechanical convection oven maintained at 90 +/- 2 C for 7 days. Evaluate after conditioning at 23 +/- 2 C. 3.5.2 Condition B As under para 3.5.1, exc
13、ept use the unmounted part. 3.5.3 Condition C As under para 3.5.1, except maintain part at test period and temperature as specified on Engineering Drawing. ENGINEERING MATERIAL SPECIFICATION WSK-M98P9-A WP 3948-b Page 3 of 8 3.5.4 Condition D As under para 3.5.1, except maintain the unmounted part a
14、t test period and temperature as specified on Engineering Drawing. 3.6 PAINT REPAIR OVEN RESISTANCE (EAO only) The finished part shall show no evidence of deformation or other changes which would interfere with asembly to mating part or affect its appearance. 3.6.1 Condition A As under para 3.5.1, e
15、xcept maintain the mounted part at 100 +/- 2 C for 30 minutes. 3.6.2 Condition B As under para 3.5.1, except maintain the unmounted part at 100 +/- 2 C for 30 minutes. 3.7 ENVIRONMENTAL CYCLING (FLTM BQ 104-07) The finished part shall show no evidence of warpage, deformation, cracks, delamination or
16、 other failures to an extent that would affect its use in the ultimate assembly. The finished part shall show no changes in appearance when compared with the original finished part. Test Methods: The specific test procedure of FLTM BQ 104-07 has to be selected according to the application and shown
17、on Engineering Drawing. 3.8 RESISTANCE TO COLD IMPACT The finished part shall show no breaks, cracks or other failures. Test Methods: One of the following test conditions shall be defined according to application and shown on Engineering Drawing. 3.8.1 Condition A FLTM BO 151-01, Method B, except th
18、e finished part shall be mounted as assembled in the vehicle in a suitable device and maintained at - 40 +/- 1 C for 16 h. The impact shall be carried out on areas regarded as most vulnerable in respect of shape and installation on the vehicle. Evaluate after conditioning to 23 +/- 2 C. ENGINEERING
19、MATERIAL SPECIFICATION WSK-M98P9-A WP 3948-b Page 4 of 8 3.8.2 Condition B The mounted finished part shall be maintained as defined under para 3.8.1, except height of drop 300 mm. 3.8.3 Condition C As under para 3.8.1, except use the unmounted part. 3.8.4 Condition D As under para 3.8.2, except use
20、the unmounted part. 3.9 RESISTANCE TO WAXING AND DEWAXING COMPOUNDS (FLTM BO 155-01, for NAAO applications use ESB-M99J371-A1/A2 instead of specified material) The part shall show no breaks, cracks or other failures. 3.10 FUEL RESISTANCE (FLTM BO 101-05) The part shall show no breaks, cracks or othe
21、r failures. Test Fuels: 3.10.1 85 % Fuel C + 15 % Methanol (ISO 1817/ASTM D 471) 3.10.2 Diesel Fuel (ISO 1817, Fuel F) 3.10.3 As specified on Engineering Drawing 3.11 RESISTANCE TO ENGINE OIL Test Method: ISO 1817/ASTM D 471, Oil No. 3, 24 h at 23 +/- 2 C, rinse with warm tap-water before evaluation
22、. The part shall show no breaks, cracks or other failures. 3.12 RESISTANCE TO BREAK FLUID Test Method as under 3.11, except use approved break fluid of affected model year (see para 5.1), immersion time 2 h. The part shall show no breaks, cracks or other failures. 3.13 RESISTANCE TO LONGLIFE COOLANT
23、 Test Method as under 3.11, except use 50 vol.% longlife coolant of affected model year (see para 5.1) and 50 vol.% distilled water, immersion time 72 h. The part shall show no breaks, cracks or other failures. 3.14 RESISTANCE TO WINDSHIELD WASHERFLUID ENGINEERING MATERIAL SPECIFICATION WSK-M98P9-A
24、WP 3948-b Page 5 of 8 Test Method as under 3.11, except use 50 vol.% isopropylalcohol and 50 vol.% distilled water, immersion time 72 h. The part shall show no breaks, cracks or other failures. 3.15 RESISTANCE TO BATTERY ACID Test Method FLTM BO 101-05, except use as test fuel sulphuric acid with a
25、density of 1.28 g/cm3, para 1 of procedure - warming up of specimen - shall be omitted. The part shall show no breaks, cracks or other failures. 3.16 CONTACT AND MIGRATION STAINING (FLTM BP 153-01, Method A) The contact material shall produce no stain or change in surface appearance on the painted p
26、anel beyond the boundaries of the test combination. Slight contact staining is permitted if not otherwise specified on Engineering Drawing. Note: Slight softening of contact area is permitted if not otherwise specified on Engineering Drawing. 3.17 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute
27、 3.18 SUPPLIERS RESPONSIBILITY All materials supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. ENGINEERING MATERIAL SPECIFICATION WSK-M98P9-A WP 3948-b Page 6 of 8 Prior to making any change in the properties, composi
28、tion, 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 affected Materials Engineering act
29、ivity 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 materials addressed by this docume
30、nt. The restrictions are defined in Engineering Material Specification WSS-M99P9999-A1. 4. APPROVAL OF MATERIALS This specification is intended to define the performance and/or properties of finished parts or systems of combined materials. An Engineering Material Approved Source listing is not appli
31、cable for this specification. Product Engineering materials referenced in this document and/or the affected engineering drawing which require prior Engineering approval are shown in the Engineering Material Approved Source List under the specification cited. 5. GENERAL INFORMATION If any of above te
32、sts cannot be carried out on the finished part due to dimension, design etc. a respective note shall be made in the Initial Sample Report and submitted for approval to the Materials Development Laboratory, Product Engineering. 5.1 For information on currently approved service fluids and other materi
33、als required for use in this specification contact: Materials Laboratory 13/100 Materials Engineering Research and Eng. Centre Product Engineering Office Ford Motor Company Ltd Ford Motor Co. of Australia Ltd Laindon, Basildon Princes Highway, Norlane Essex SS15 6EE, England Victoria 3214, Australia
34、 Fluids Material Section Coolants/Greases Engine Engineering Ford Motor Co. P.O. Box 2053 21500 Oakwood Blvd. Dearborn, MI 48121, USA ENGINEERING MATERIAL SPECIFICATION WSK-M98P9-A WP 3948-b Page 7 of 8 Table 1 _ Example for Drawing Prescription _ Assy Part 1 Part 2 _ 3.4 Appearance X X X 3.5 Heat A
35、ging ED 3.5.1 3.5.2 3.5.3 3.5.4 3.6 Paint Oven Resistance ED 3.6.1 3.6.2 3.7 Environmental Cycling ED 3.8 Resistance to Cold Impact ED 3.8.1 3.8.2 3.8.3 3.8.4 3.9 Resistance to - X Waxing/Dewaxing Compounds 3.10 Fuel Resistance ED ED 3.10.1 3.10.2 3.10.3 3.11 Resistance to X X Engine Oil 3.12 Resist
36、ance to - - Break Fluid 3.13 Resistance to - X Longlife Coolant NOTE: ED = According to Engineering Drawing Table 1 - continued _ Example for Drawing Prescription _ ENGINEERING MATERIAL SPECIFICATION WSK-M98P9-A WP 3948-b Page 8 of 8 Assy Part 1 Part 2 _ 3.14 Resistance to - - Windshield Washer Fluid 3.15 Resistance to ED ED Battery Acid 3.15.1 3.15.2 3.16 Contact and X - Migration Staining 3.17 Flammability X - NOTE: ED = According to Engineering Drawing
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