1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Ver 2 2008 05 14 N-STATUS Replaced by WSS-M99P25-B; Inserted 3.0; Deleted 4 A. Reaume 1988 12 14 Released NE01-E-10000474-033 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1 of 1 WATER QUALITY, INITIAL FILL
2、, ENGINE COOLANT ESE-M99P25-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The water defined by this specification is intended to provide a guideline for water purity used with engine coolants. 2. APPLICATION This specification was released originally for water which, when mixed with engine coolant, will
3、not cause precipitation of corrosion inhibitors used in engine coolant to occur. This specification is for both initial fill and service use. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements Fo
4、r Production Materials (WSS-M99P1111-A). All values are maximum ppm (mg/L) allowed except as indicated. Chloride 50 Sulfate 50 Total alkalinity 100 Total hardness (as Ca CO 3) 125 Total dissolved solids 200 Iron 1.0 Sulfide None pH (Electrometric Units) 5.0 - 9.0 Specific Conductivity 0 - 300 (micro ohms at 25 C) Particulate solids must be smaller than 100 microns Note: A 10% maximum variation is allowed due to local water variation.
