1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 1 2013 06 04 Revised See Summary of Revisions A. Reaume, NA 2012 05 14 Activated A. Reaume/M. Ranger, FNA Controlled document at www.MATS Copyright 2013, Ford Global Technologies, LLC Page 1 of 5 INHIBITOR, ENGINE HOT TEST FLUID WSS-M97B
2、56-A1 1.0 SCOPE The material defined by this specification is an inhibitor concentrate containing corrosion inhibitors in an aqueous base at a ratio of around 30% inhibitors and 70% water in the as-received concentrate. The concentrated aqueous base inhibitor is used to make engine hot test fluid. C
3、oncentrated engine coolant can also be considered an inhibitor concentrate. Engine hot test fluids prepared by mixing the concentrated aqueous base inhibitor or concentrated engine coolant with water provide corrosion protection of all engine materials (iron, aluminum, copper and solder alloys). 2.0
4、 APPLICATION This specification is released for concentrated aqueous base inhibitor or engine coolant that when mixed with treated water shall provide corrosion protection and heat transfer for all engines during hot testing. After draining, the material will provide corrosion protection for up to t
5、hree months in transport / storage and is fully compatible with initial fill engine coolant formulations. 2.1 LIMITATIONS The aqueous base inhibitor mixed with water may not provide freeze protection. It should not be used for hot test and storage / transport when there is a possibility of freezing.
6、 The engine coolant concentrate mixed with water will provide freeze protection. It should be used for hot test and storage / transport when there is a possibility of freezing. 3.0 REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to t
7、he Companys Standard Requirements For Production Materials (WSS-M99P1111-A). Concentrated aqueous base inhibitor to be mixed with treated water, at 7.5% +/- 2.5% by volume and must be fully compatible with initial fill engine coolant formulations per WSS-M97B44-D/D2 and E1/E2. Concentrated engine co
8、olant to be mixed with treated water 50% by volume. The engine coolant must be an approved formulation meeting WSS-M97B44-D/D2 or E1/E2. Treated water to meet WSS-M99P25-C. After draining, the material will provide corrosion protection for up to three months in transport / storage (aqueous material
9、at 10% by volume and coolant at 50% by volume). In-vehicle, the hot test fluid mixed with water shall be stable so as not to change in form, quality or composition to adversely affect heat transfer or corrosion inhibition. ENGINEERING MATERIAL SPECIFICATION WSS-M97B56-A1 Copyright 2013, Ford Global
10、Technologies, LLC Page 2 of 5 3.2 HOT TEST FLUID COMPOSITION Hot test fluids supplied to this specification must adhere to the following: square4 Minimum of 30% inhibitor package with the balance water per ASTM D1123 OR Engine coolant concentrate meeting WSS-M97B44-D/E1. square4 ASTM D5827 Standard
11、Test Method for Analysis of Engine Coolant for Chloride and Other Anions by Ion Chromatography square4 Silicon, from silicates, at 10 ppm maximum. square4 Phosphorous, from phosphates, at 10 ppm maximum. square4 Boron, from borates, at 5 ppm maximum. square4 Chlorides at 25 ppm maximum square4 Sulfa
12、tes at 30 ppm maximum square4 Phosphates at 15 ppm max (measured by Ion Chromatography only) square4 Glycolate at 10 ppm max square4 Nitrite and nitrate at 5 ppm max square4 ASTM D6130 Standard Test Method for Determination of Silicon and Other Elements in Engine Coolant by Inductively Coupled Plasm
13、a-Atomic Emission Spectroscopy square4 Aluminum at 5 ppm maximum square4 Calcium at 5 ppm maximum square4 Copper at 5 ppm maximum square4 Iron at 5 ppm maximum square4 Lead at 5 ppm maximum square4 Magnesium at 5 ppm maximum 3.3 LABORATORY MATERIAL TESTING Requirements in sections 3.3.1 to 3.3.13 ar
14、e screening tests to determine if hot test fluids qualify for more intensive evaluations. Unless noted, testing is to be performed on a 5% dilution of the concentrated aqueous base inhibitor with de-ionized water or 50% dilution of the engine coolant concentrate with de-ionized water. 3.3.1 Specific
15、 Gravity Report range (ASTM D1122) 3.3.2 Water Content Report range (ASTM D1123) 3.3.3 pH Report range (ASTM D 1287) 3.3.4 Foaming Characteristics (ASTM D1881) Foam Volume Report Break Time Report 3.3.5 Color Report (Visual) ENGINEERING MATERIAL SPECIFICATION WSS-M97B56-A1 Copyright 2013, Ford Globa
16、l Technologies, LLC Page 3 of 5 3.3.6 Glassware Corrosion Test (ASTM D1384 with exception of 300 ppm chloride, Average of 3 weight loss determinations) 3.3.6.1 Cast iron, steel, brass and copper 10 mg max 3.3.6.2 Cast aluminum, low lead solder 10 mg max 3.3.6.3 High lead solder Report 3.3.7 Hot Surf
17、ace Corrosion Test (ASTM D4340) Measure and report weight loss after cleaning with both methods: 1) Clean with deionized water 2) Clean with acid per ASTM D4340 Report both readings and average after each cleaning method 0.5 mg/cm2/wk, max 3.3.8 Galvano-static pitting test -400 mV, min (FLTM BL 105-
18、01) 3.4 HOT TEST FLUID DURABILITY TESTING Note: For engine coolant concentrate, testing is to be performed on a 50% dilution of the engine coolant concentrate. 3.4.1 Storage Performance Test Method Prepare 8 samples in glass bottles with lids, of 100 ml volume, of 5% hot test fluid (samples 1 and 2)
19、, 7.5% hot test fluid (samples 3 and 4), 10% hot test fluid (samples 5 and 6) and no hot test fluid (samples 7 and 8) in deionized water (ASTM D1193, Type IV minimum, to simulate factory water usage). In samples 1, 3. 5 and 7, place a cast iron coupon per ASTM D1384 section 6. In samples 2, 4, 6 and
20、 8, place a cast aluminum coupon per ASTM D1384 section 6. Volume of fluid is to cover the entire coupon surface. Put all samples in 90C oven for 1 hour. Remove samples from the oven and drain 50% of the fluid volume from them such that that each coupon is 50% immersed and 50% in air. Evaluate coupo
21、n surfaces for darkening, rust, etc. Set the samples in a humidity chamber at 50% humidity and ambient temperature for 4 weeks with lids resting on top but not tightened. Remove samples. Evaluate the coupon surfaces for darkening, evidence of rust or aluminum corrosion is to be noted. Compare the sa
22、mples with hot test fluid against the sample with water alone; sample with hot test fluid is to have better corrosion performance than water alone. Photos are to be provided of each sample. 3.4.2 Storage Stability Hard water and temperature Supplier must report water quality conditions that may adve
23、rsely affect the quality of the hot test fluid (inhibitor depletion, lowered life, etc). The hot test fluid concentrate form, quality and chemical composition shall not be adversely affected, changed or impacted by storage in plant environments under conditions of normal distribution and storage. EN
24、GINEERING MATERIAL SPECIFICATION WSS-M97B56-A1 Copyright 2013, Ford Global Technologies, LLC Page 4 of 5 Hard water solution - Prepare hard water by adding 275mg of calcium chloride (CaCl2) to 1 liter synthetic corrosive water described in the test solution section of ASTM D1384. Prepare six 100 ml
25、hot test fluid and hard water samples using the test coolant and the hard water solution. Samples are to have hot test fluid concentrations of 5% (samples 1 and 2), 7.5% (samples 3 and 4) and 10% (samples 5 and 6). Put all samples in clean, glass bottles for testing. All samples must pass hot and co
26、ld storage stability testing for the coolant to pass. 3.4.2.1 Hot Storage Stability - Samples 1, 3 and 5 are heat storage tested in a circulating air oven at 90 +/- 2 C for 4 weeks. Allow to cool to room temperature. Check for precipitates, deposits, gelation and phase separation. “Fish eyes” on the
27、 top (from defoamer) is acceptable. If anything other than “fish eyes” is present, such as gel or material in solution or precipitate, terminate test and write as failure. Analyze mixture to determine effect to the hot test fluid. 3.4.2.2 Cold Storage Stability - Samples 2, 4 and 6 are cold storage
28、tested at -40C for 4 weeks. Allow to reach room temperature. Check for precipitates, deposits, gelation and phase separation. “Fish eyes” on the top (from defoamer) is acceptable. If anything other than “fish eyes” is present, such as gel or material in solution or precipitate, terminate test and co
29、nsider as a failure. Analyze mixture to determine effect to the hot test fluid. 3.4.3 Compatibility with Engine Coolants Aqueous hot test fluids only. List of coolants for compatibility testing to be supplied by Ford FCSD, Materials Engineering and/or Product Development PTI Cooling. Test Method Pre
30、pare 5 samples, of 500 ml volume, of 50% coolant concentrate and 50% deionized water (ASTM D 1193, Type IV minimum water to simulate factory fill usage). Label sample bottles 1, 2, 3, 4 and 5. Add 5%, 7%, 8% and 10% by volume of concentrated aqueous base inhibitor to samples 1, 2, 3 and 4, respectiv
31、ely; leave sample 5 as is. Allow samples to sit for a period of 4 weeks at ambient temperature then heat at 90C for a period of 2 weeks. Observe the samples weekly for any change in appearance, such as gelling, precipitation, phase separation. (French square-type bottle may aid visual check.) Analyz
32、e mixture to determine effect to the hot test fluid. Any changes, other than “fish eyes” deem the hot test fluid incompatible with the coolant. 3.4.4 Trial Evaluation of Engine Corrosion Protection - Simulated Shipping and Storage Test Method In an actual plant, perform a trial of 10-25 engines cont
33、aining both iron and aluminum. Engines are to be hot tested using 10% hot test fluid for aqueous fluid with 90% treated water (per above) or 50% coolant concentrate and 50% treated water (per above). Engines are then drained using current plant procedure. Engines are placed in storage for 3 4 months
34、. After storage, engine coolant passages should be examined visually (jury appraisal) for any sign of corrosion. This would include bore-scope inspection of water passage areas of block and cylinder head. Ancillary metal components, such as water pump, thermostat housings, thermostats, hose connecto
35、rs, etc. should also be examined for evidence of corrosion. Thermostats should also be examined for deposits and correct operation. Check for crevice corrosion that may occur at component joints or other crevices. Any areas that retain significant amounts of residual hot test fluid should be careful
36、ly examined. ENGINEERING MATERIAL SPECIFICATION WSS-M97B56-A1 Copyright 2013, Ford Global Technologies, LLC Page 5 of 5 If there is residual hot test fluid / coolant available, a sample is to be taken and analyzed. If corrosion inhibitors are depleted, there are metals in solution from corrosion, or
37、 there are visual effects from storage (color change, preciptates, floating material), this is to be considered failure and must be reported and investigated in conjunction with Materials Engineering and the hot test fluid / coolant supplier. Note: Each plant should determine suitability of hot test
38、 fluid corrosion protection. This can be accomplished by hot testing a sample of current engines (reference latest version of engine specific ES-BR3E-6007-XX). Engines should be hot tested and drained using current plant procedure and then placed in storage for a time representative of maximum curre
39、nt storage and shipping times. Fluid concentration used must be representative of that to be used by the plant. Any significant corrosion evidence is cause for failure and should be reported and investigated in conjunction with Materials Engineering and the relevant component engineers. 4. GENERAL I
40、NFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. This product should be stored above -5C and preferably at plant ambient temperatures. Periods
41、of exposure to temperatures above 35C should be minimized. It can be stored for a minimum of 5 years in unopened containers without any effect on the product quality or performance. As with any antifreeze coolant, the use of galvanized steel is not recommended for pipes or any other part of the storage/mixing installation. 5. SUMMARY OF REVISIONS 6/4/2013 Changed 3.3.4 Foam Characteristics Foam Volume from 150 ml max to report and Break Time from 5 sec max to report.
