1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Ver. 2 2008 07 22 Revised Added Table 1 C. McComb, FNA 2007 11 29 Activated C. McComb, FNA Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1 of 6 WINDSHIELD WASHER SOLVENT PERFORMANCE WSS-M14P19-A 1. SCOPE T
2、his 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. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATE
3、RIALS Material suppliers and part producers must conform to the Companys Standard Requirements for Production Materials (WSS-M99P1111-A). 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, repre
4、sentative panels or plaques may be substituted for production parts. Production 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.
5、If the vehicle is being sold in several markets the fluids representative of 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 wa
6、sher solvent is needed to meet the testing requirements of this specification. 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 WS
7、S-M14P19-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 6 3.5 CLEANABILITY 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.
8、 b. Remove and rinse with DI water. The glass plates should be water break free of droplets when held vertically. 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
9、 tongs, fully immerse each plate from item c. in 1 liter of 40% fresh WWS concentrate and 60% DI water. Move 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 ar
10、ea which is water repellant. Use an appropriate grid as a guide to calculate percentage. Acceptance Criteria: 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 exte
11、rior surfaces that may come into contact with the fluid. Interaction between the WWS and the windshield system 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 pr
12、oduction parts. Body enamels should be prepared per FLTM BI 103-02. Other panels should be prepared simulating 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 w
13、ith approximately 5% mild detergent solution (for example, mild dishwashing soap). Rinse thoroughly with DI 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 w
14、hen compared to the unspotted areas of the same specimen. AATCC gray scale rating of 4 - 5 or 5. ENGINEERING MATERIAL SPECIFICATION WSS-M14P19-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 3 of 6 3.7 METAL CORROSIVENESS Perform test on production representative
15、 metals in the windshield washer system. Metals to be included are, but not limited to, aluminum alloys, brass, stainless steel, galvanized 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
16、 clean of foreign coatings or contaminants. b. Weigh, then totally immerse each test coupon in individually sealed glass jars containing initial 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
17、 surface imperfections. Acceptance Criteria There shall be no surface imperfections such as pitting or surface corrosion. Weight change shall 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
18、specimens shall be representative of vehicle production rubber and must be identified by the manufacturers material codes. Test Method a. Determine 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 W
19、WS 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 stickiness, exfoliation, swelling or cracking. d. Measure IRHD and weight. Acceptance Criteria There shall be no evidence of surface stickiness, exfoliation, or cra
20、cking. Hardness shall be within 3 IRHD of the original hardness. Weight shall be within 3% of the original weight. Volume shall be within 3% 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 o
21、f 25 mm x 50 mm x 2 mm. All plastic specimens and nozzles shall be representative of vehicle production parts. ENGINEERING MATERIAL SPECIFICATION WSS-M14P19-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 4 of 6 Test Method a. Weigh each specimen to be tested. b.
22、 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 an oven to dry for 24 hours at 50 C. d. Inspect each specimen for any changes in surface appearance and weigh. Acceptance Criter
23、ia Weight change shall be within 3% of the original weight. There shall be no significant discoloration, deformation, cracking, warping, or softening. AATCC gray scale rating of 4 - 5 or 5. 3.9.2 Effect of WWS on Plastic Stress Cracking (FLTM BO 127-03) Acceptance Criteria There shall be no cracking
24、 or crazing. 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, connectors and adhesives, should be evaluated based on their potential to stain. 3.10.1 Apparatus an
25、d 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 fasteners to seal the ends of the tubing to prevent evaporation of fluid. d. Distilled water. e. AATC
26、C 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 C. 3.10.2 Hose and Blade Preparation a. Cut washer tubing samples in axial lengths of 33 +/- 0.5 c
27、m from all materials utilized by the washer system including nylon, EPDM rubber, TPE (Santoprene), vinyl, etc. b. Cut wiper blade in axial lengths of 5 +/- 1 mm and 200 +/- 1 mm cut into 0.5 cm length ENGINEERING MATERIAL SPECIFICATION WSS-M14P19-A Printed copies are uncontrolled Copyright 2008, For
28、d Global Technologies, LLC Page 5 of 6 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 full) to allow for expansion. b. Plug the ends of the specimens an
29、d 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 at 85 C for 30 minutes. f. Remove panels from oven and immediatel
30、y 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 min at 85 C taking care not to tip panels or disturb the fluid drop
31、lets. 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. Record rinse time. j. Lightly blot control spot dry with a paper towel.
32、 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 surface discoloration or distortion. Acceptance Criteria The spotted ar
33、eas 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 Method for Wiper Blades Perform test on surfaces that could come
34、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 panels be coated with an acrylic enamel. ENGINEERING MATERIAL SPEC
35、IFICATION WSS-M14P19-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 6 of 6 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 at 50 C. b. Heat panels at 85 C for
36、 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 spots should be approximately 7mm in d
37、iameter. 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 area under cool running tap water
38、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 paper towel. Do not rub extract spo
39、t 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 area of the same panel. AATCC gray
40、scale rating of 4 - 5 or 5. TABLE 1 Specification Reqt 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 Surface Appearance and Weight 3 X 3.9.2 Effect on Plastic Stress Cracking 3 X 3.10 Stain Reistance of Exterior Surfaces to Hose and Wiper Blade System 3 X
