1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 1 2014 02 21 Editorial See Summary of Revisions G. Xu, APA 11 25 2013 Released G. Xu, APAControlled document at www.MATS Copyright 2014, Ford Global Technologies, LLC Page 1 of 5 WINDSHIELD WASHER FLUID, ETHANOL, CONCENTRATE WSS-M8B18-A2
2、 WINDSHIELD WASHER FLUID, ETHANOL, PRE-DILUTED, INITIAL FILL WSS-M8B18-A3 1. SCOPE A2 The material defined by this specification is an ethanol based solution containing surfactants and other additives for improved cleaning efficiency and freeze point depression. The material defined by this specific
3、ation is a concentrated product; and is diluted with water at the assembly plant. Deionized water is preferred. A3 The material defined by this specification is an ethanol based solution containing surfactants and other additives for improved cleaning efficiency and freeze point depression. The mate
4、rial defined by this specification is a water dilution of the material defined in A2. See Table 1 for freezing point temperature by region. 2. APPLICATION The concentrated material, A2, must be diluted with water prior to use in vehicle wiper/washer systems. The diluted material, A3, is intended for
5、 locations that lack equipment to dilute the concentrate, have poor water quality, or chose to avoid mixing altogether. The dilution ratio is established to meet the freeze point requirement for the market where the vehicle is sold. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS
6、Material suppliers and part producers must conform to the Companys Standard Requirements for Production Materials (WSS-M99P1111-A). 3.1.1 In addition to the control plan, the supplier and affected Material Engineering activity shall establish mutually agreed upon frequency of testing for the ongoing
7、 product verification plan and include in Supplement A. 3.2 APPROVAL INFORMATION This specification was released to allow this material to be purchased by Ford Purchasing for use in a Ford facility. The specification number is also the part number in WERS. The directions to dilute the concentrate wi
8、th water to achieve the specified freezing point must be clearly marked on all deliveries to the Ford facility. The freezing point of pre-diluted initial fill must be clearly marked on all deliveries. ENGINEERING MATERIAL SPECIFICATION WSS-M8B18-A2/A3 Copyright 2014, Ford Global Technologies, LLC Pa
9、ge 2 of 5 3.3 REQUIREMENTS 3.3.1 Color Clear blue Visual or as agreed to by Ford facility 3.3.2 Specific Gravity at 15.6 C Report (ASTM D891) Specific Gravity is dependent on temperature and suppliers concentration/composition. Since multiple suppliers will be approved to this specification, refer t
10、o the Ford Approved Source List or Suppliers MSDS or Certificate of Analysis. Typical specific gravity is 0.80 for the concentrate and 0.94 for the pre-diluted. 3.3.3 Freeze Point of diluted WWF (ASTM D1177) Less than North America Market (FNA) -30C South America Market (FSAO) 0C Europe (FoE) -20C A
11、sia Pacific and Africa Market (APA) 0C China Market -40C 3.4 PERFORMANCE REQUIREMENTS Materials being evaluated for initial approval must meet WSS-M14P19-A/latest revision. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of
12、these specifications. Contact for questions concerning Engineering Material Specifications. Windshield washer fluid (WWF) has the following typical properties. 4.1 WSS-M8B18-A2 4.1.1 Non-Volatiles, 50mg/100mL (ASTM D1353) 4.1.2 Viscosity (ASTM D445) 4.1.2.1 At 25 C 0.90 2.90 mm2/s 4.1.2.2 At - 17.8
13、 C 2.50 18.3 mm2/s 4.1.3 Suspended Solids 1.0 mg (ASTM D5907, 1 micron polycarbonate filter, 1 gallon of fluid, except drying temperature of 65 - 70 C) ENGINEERING MATERIAL SPECIFICATION WSS-M8B18-A2/A3 Copyright 2014, Ford Global Technologies, LLC Page 3 of 5 4.2 WSS-M8B18-A3 4.2.1 pH 6.5 10.0 (AST
14、M E70) 4.2.2 Surface Tension at 25 C, 35 mN/m (ASTM D1331) 4.2.3 Viscosity (ASTM D445) 4.2.3.1 At 25 C 1.60 - 1.68 mm2/s 4.2.3.2 At -17.8 C 8.54 - 10.14 mm2/s 4.3 CHEMICAL COMPOSITION, WSS-M8B18-A2 Composition of washer fluid varies by supplier. General Composition % by Weight Ethanol 55 - 100 Deter
15、gent/Surfactants 5 Alkalinity Source 2 Rust Preventative Source 2 Water 45 Glycol 12 Stable, Identifying Dye Trace ENGINEERING MATERIAL SPECIFICATION WSS-M8B18-A2/A3 Copyright 2014, Ford Global Technologies, LLC Page 4 of 5 TABLE 1 Note: Graph is based on mean experimental values. 5. SUMMARY OF REVI
16、SIONS 2014 02 21 Changed prefix throughout document from WSK to WSS. ENGINEERING MATERIAL SPECIFICATION WSS-M8B18-A2/A3 Copyright 2014, Ford Global Technologies, LLC Page 5 of 5 SUPPLEMENT A Supplier_Date_ Product Name_ Product Code_Batch No._ Manufacturing Plant Location_ Physical/Chemical/Performa
17、nce Properties ASTM Manufacturing Limits Test Results WSS-M8B18-A2 Non-volatiles, % D1353 _ _ Specific Gravity D891 _ _ Viscosity, mm2/s D445 At 22 C _ _ At - 17.8 C _ _ Suspended Solids D5907 _ _ WSS-M8B18-A3 dilution ratio (concentrate/water) _ _ pH E70 _ _ Specific Gravity D891 _ _ Surface Tension, N/m D1331 _ _ Viscosity, mm2/s D445 At 22 C _ _ At - 17.8 C _ _Freeze Point, C D1177 _ _ Supplier Signature_ Title_ Material Engineering Concurrence_
