1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Ver. 2 2015 10 01 Revised Revised section 3.9.2 C. McComb, NA 2008 07 22 Revised Added Table 1 C. McComb, FNA 2007 11 29 Activated C. McComb, FNA Controlled document at www.MATS Copyright 2015, Ford Global Technologies, LLC Page 1 of 7 WINDSH
2、IELD WASHER SOLVENT PERFORMANCE WSS-M14P19-A 1. SCOPE This specification defines the minimum performance requirements of WWS (Windshield Washer Solvent). 2. APPLICATION This specification defines minimum performance requirements of all initial fill (water diluted) alcohol based WWS solutions. 3. REQ
3、UIREMENTS 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List (ASL) can be used when this specification is listed on the drawing, CAD file, or other documents. The list of approved sources is located within Ford a
4、t or available externally through a Ford Materials Engineer. 3.2 FINISHED PARTS Testing must be done on actual production parts or a section of the part whenever possible. Where part dimensions limit equipment access, representative panels or plaques may be substituted for production parts. Product
5、ion parts, panels, and plaques shall be referred to as “specimens“ throughout the specification. 3.3 TYPES OF WWS The type of WWS fluids used in the testing will depend on the market that the vehicle is intended to be sold. If the vehicle is being sold in several markets the fluids representative of
6、 each market must be tested. 3.4 TESTING REQUIREMENTS All of the requirements listed in section 3.5 - 3.10 must be performed in triplicate. All weights should be to the nearest milligram. Approximately 3.8 L of windshield washer solvent is needed to meet the testing requirements of this specificatio
7、n. The ratio of water to alcohol-based concentrates for final initial fill use will be determined by local market requirements. Contact the Design and Release Engineer for dilution rate. ENGINEERING MATERIAL SPECIFICATION WSS-M14P19-A Copyright 2015, Ford Global Technologies, LLC Page 2 of 7 3.5 CLE
8、ANABILITY Perform test on transparent glass test plates that measure approximately 50 mm x 80 mm. Test Method a. To clean thoroughly, place the glass plates in a 10% IPA solution for 12 hours. b. Remove and rinse with DI water. The glass plates should be water break free of droplets when held vertic
9、ally. c. Air dry the plates and then completely immerse each plate in mineral oil (approximate viscosity of 10 mm2/sec at 40 C). Remove and allow the plates to drain for 1 hour. d. Using clean tongs, fully immerse each plate from item c. in 1 liter of 40% fresh WWS concentrate and 60% DI water. Move
10、 each plate back and forth a distance of 25 - 50 mm 100 times in approximately 3 minutes. Rinse each plate for minute with DI water. e. Determine for each glass plate the percentage surface area which is water repellant. Use an appropriate grid as a guide to calculate percentage. Acceptance Criteria
11、: Average for the three tests must show 80% minimum of surface area is water-break free after completing Cleanability test. 3.6 BODY EXTERIOR COMPATIBILITY Perform the test on any vehicle exterior surfaces that may come into contact with the fluid. Interaction between the WWS and the windshield syst
12、em and adhesives should be tested by the component supplier. Test Method a. Place a few drops of each initial-fill WWS of approximately 5 mm in diameter on two panels of actual or simulated production parts. Body enamels should be prepared per FLTM BI 103-02. Other panels should be prepared simulati
13、ng production processes. b. Allow the fluid to remain on test specimens until dry. c. Expose specimens to fluorescent light per FLTM BU 105-01 for 24 hours at 80 C. d. Remove specimens, wash with approximately 5% mild detergent solution (for example, mild dishwashing soap). Rinse thoroughly with DI
14、water and pat dry with a soft cloth or tissue. Acceptance Criteria The spotted areas of the specimen shall show no color change, dulling, surface distortion, spotting, softening, or cracking when compared to the unspotted areas of the same specimen. AATCC gray scale rating of 4 - 5 or 5. ENGINEERING
15、 MATERIAL SPECIFICATION WSS-M14P19-A Copyright 2015, Ford Global Technologies, LLC Page 3 of 7 3.7 METAL CORROSIVENESS Perform test on production representative metals in the windshield washer system. Metals to be included are, but not limited to, aluminum alloys, brass, stainless steel, galvanized
16、steel, cast iron, and chrome plated steel. The coupons shall be 5 cm x 4 cm or other dimensions to equal area of 20 cm2. Test Method a. All test coupons must be clean of foreign coatings or contaminants. b. Weigh, then totally immerse each test coupon in individually sealed glass jars containing ini
17、tial fill WWS for a period of 168 hours at 50 C. c. Remove coupons and rinse with DI water. Dry for 1 hour at 100 C. Cool and weigh. d. Inspect test coupons for surface imperfections. Acceptance Criteria There shall be no surface imperfections such as pitting or surface corrosion. Weight change shal
18、l be within 3% of original weight. 3.8 EFFECT ON RUBBER AND HOSES Perform test on specimens that have approximate dimensions of 5 mm x 50 mm x 2 mm. The rubber specimens shall be representative of vehicle production rubber and must be identified by the manufacturers material codes. Test Method a. De
19、termine IRHD of materials to be tested per ASTM D 1415.06. b. Weigh, then immerse each test specimen in individually sealed glass jars containing initial-fill WWS and hold for period of 168 hours at 50 C. c. Remove specimens then allow to air dry for one hour at room temperature and inspect for stic
20、kiness, exfoliation, swelling or cracking. d. Measure IRHD and weight. Acceptance Criteria There shall be no evidence of surface stickiness, exfoliation, or cracking. Hardness shall be within 3 IRHD of the original hardness. Weight shall be within 3% of the original weight. Volume shall be within 3%
21、 of the original volume. 3.9 EFFECT ON PLASTIC 3.9.1 Effect of WWS on Surface Appearance and Weight Perform test on specimens that have approximate dimensions of 25 mm x 50 mm x 2 mm. All plastic specimens and nozzles shall be representative of vehicle production parts. ENGINEERING MATERIAL SPECIFIC
22、ATION WSS-M14P19-A Copyright 2015, Ford Global Technologies, LLC Page 4 of 7 Test Method a. Weigh each specimen to be tested. b. Completely immerse each specimen in individually sealed glass jars of initial-fill WWS and hold for 168 hours at 50 C. c. Remove specimens, rinse with DI water and put in
23、an oven to dry for 24 hours at 50 C. d. Inspect each specimen for any changes in surface appearance and weigh. Acceptance Criteria Weight change shall be within 3% of the original weight. There shall be no significant discoloration, deformation, cracking, warping, or softening. AATCC gray scale rati
24、ng of 4 - 5 or 5. 3.9.2 Effect of WWS on Plastic Stress Cracking (FLTM BO 127-03, except as noted below) Test Method a. Step 5: Place gauze wet with washer fluid (contact material) on stressed polymer and leave at room temperature for two hours. b. Place in oven at 50C for four hours. c. Remove test
25、 piece, rewet gauze (no cooling), and return to oven for eighteen hours. d. Remove test piece, cool to room temperature, rewet gauze and place in chiller at -20C for twenty-four hours. e. Remove test piece, bring to room temperature, rewet gauze, leave at room temperature for two hours, then place i
26、n oven at 50C for twenty-two hours. Acceptance Criteria There shall be no cracking, crazing, or discoloration. 3.10 STAIN RESISTANCE OF EXTERIOR SURFACES TO HOSE AND WIPER BLADE SYSTEM DESIGN SPECIFIC INFORMATION Determine which parts of the system, such as the reservoir, seals, tubing materials, co
27、nnectors and adhesives, should be evaluated based on their potential to stain. 3.10.1 Apparatus and Materials Required a. Oven capable of holding panels, hose sections, and wiper blade sections at 85 +/- 3 C. b. Fluorescent Sunlight Cabinet specified in FLTM BP 153-01. c. Clamps, plugs, caps, or fas
28、teners to seal the ends of the tubing to prevent evaporation of fluid. d. Distilled water. e. AATCC gray scale chart. f. Painted panels shall be white (or the lightest color available to the consumer) and panels shall have been painted within the last 24 hours or stored in a freezer at or below -10
29、C. ENGINEERING MATERIAL SPECIFICATION WSS-M14P19-A Copyright 2015, Ford Global Technologies, LLC Page 5 of 7 3.10.2 Hose and Blade Preparation a. Cut washer tubing samples in axial lengths of 33 +/- 0.5 cm from all materials utilized by the washer system including nylon, EPDM rubber, TPE (Santoprene
30、), vinyl, etc. b. Cut wiper blade in axial lengths of 5 +/- 1 mm and 200 +/- 1 mm cut into 0.5 cm length 3.10.3 Test Method for Tube Specimens Perform test on specimens representative of vehicle production parts. a. Fill six tube specimens with the initial fill WWS leaving some space (approximately
31、full) to allow for expansion. b. Plug the ends of the specimens and place in oven at 85 C. Ensure no WWS escapes. c. Remove three specimens from oven after 24 hours and three specimens after 72 hrs. d. Pour the contents of each specimen (extract) into a glass vial. Cap and shake well. e. Heat panels
32、 at 85 C for 30 minutes. f. Remove panels from oven and immediately place a few drops of the extract on the hot panels. Also place a few drops of the initial fill WWS (the control spot) on the hot panels. Fluid spots should be approximately 7 mm in diameter. g. Return spotted panels to oven for 60 m
33、in at 85 C taking care not to tip panels or disturb the fluid droplets. h. Expose specimens to fluorescent light per FLTM BU 105-01 for 24 hours at 80 C. i. Remove panels from cabinet and rinse only the control spot areas under cool running tap water until all blue washer fluid dye is removed. Recor
34、d rinse time. j. Lightly blot control spot dry with a paper towel. Do not to rub control spot area clean. k. Repeat rinse procedure on extract spot for same period of time used to rinse control spot, then lightly blot dry with a paper towel. Do not rub extract spot clean. l. Inspect panels for surfa
35、ce discoloration or distortion. Acceptance Criteria The spotted areas shall show no panel discoloration or appearance change that is noticeable at 60 cm distance from various angles in daylight when compared to the unspotted areas of the same panel. AATCC gray scale rating of 4 - 5 or 5. 3.10.4 Test
36、 Method for Wiper Blades Perform test on surfaces that could come in contact with the wiper blade. Perform test on plastic and metal panels 50 mm square, 0.9 mm (20 gauge for metal) that have been coated with a desired organic finish. When a control organic finish is desired, it is recommended that
37、panels be coated with an acrylic enamel. ENGINEERING MATERIAL SPECIFICATION WSS-M14P19-A Copyright 2015, Ford Global Technologies, LLC Page 6 of 7 Test Method: a. Completely immerse wiper blade specimens in individually sealed glass jars containing 100 ml of initial-fill WWS and hold for 168 hours a
38、t 50 C. b. Heat panels at 85 C for 30 minutes and remove from oven. c. Agitate contents of jar to ensure homogeneity of the solution. With a dropper, place a few drops of extract solution from step a. onto the panels. Also place a few drops of the WWS (the control spot) on the hot panels. Fluid spot
39、s should be approximately 7mm in diameter. d. Return spotted panels to oven for 60 min at 85 C taking care not to tip panels or disturb the fluid droplets. e. Expose specimens to fluorescent light per FLTM BU 105-01 for 24 hours at 80 C. f. Remove panels from cabinet and rinse only the control spot
40、area under cool running tap water until all washer fluid dye is removed. Record rinse time. g. Lightly blot control dry with a paper towel. Do not rub control spot area clean. h. Repeat rinse procedure on extract spot for same period of time used to rinse control spot, then lightly blot dry with a p
41、aper towel. Do not rub extract spot area clean. i. Inspect panels for surface discoloration or distortion. Acceptance Criteria The spotted area shall show no panel discoloration or appearance change that is noticeable at 60 cm distance from various angles in daylight when compared to the unspotted a
42、rea of the same panel. AATCC gray scale rating of 4 - 5 or 5. TABLE 1 Specification Requirement Sample Size To be Done at DV Testing To be Done at PV testing 3.5 Cleanability 3 X 3.6 Body Exterior Compatibility 3 X 3.7 Metal Corrosiveness 3 X 3.8 Effect on Rubber and Hoses 3 X 3.9.1 Effect on Surfac
43、e Appearance and Weight 3 X 3.9.2 Effect on Plastic Stress Cracking 3 X 3.10 Stain Resistance of Exterior Surfaces to Hose and Wiper Blade System 3 X 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Con
44、tact for questions concerning Engineering Material Specifications. 4.1 APPROVAL OF MATERIALS Suppliers desiring approval of their materials shall first obtain an expression of interest from ENGINEERING MATERIAL SPECIFICATION WSS-M14P19-A Copyright 2015, Ford Global Technologies, LLC Page 7 of 7 Pur
45、chasing, Design or Product Development, and Materials Engineering. The supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, demonstrating full compliance with all the requirements of the Material Specificat
46、ion. Tested material samples must be available for review upon request and kept for a minimum of one year. Upon request, the supplier will review the associated quality control documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.2 SUPPLIERS ONGOIN
47、G RESPONSIBILITY All materials 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, whether or not such changes affect the materials ability to meet the specification requirements, the s
48、upplier shall notify the affected Supplier Technical Assistance (STA), Purchasing, and Materials Engineering activities of the proposed changes (with reasons) by submission of a completed Suppliers Request for Engineering Approval, SREA. For parts and components using Ford Engineering Material Speci
49、fications, all samples tested to the specifications for Design Verification (DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off must be kept until Job 1. 4.3 RESTRICTED SUBSTANCE MANAGEMENT STANDARD Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in the Restricted Substance Management Standard WSS-M99P9999-
