1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 3 2012 09 19 N Status Replaced by WSS-M97B44-E1 A. Reaume, NA 2010 09 20 Revised Paragraph 2, Applications updated for dilution A. Reaume, NA 2008 12 10 Activated A. Reaume, NA Controlled document at www.MATS Copyright 2012, Ford Global
2、Technologies, LLC Page 1 of 15 COOLANT CONCENTRATE, PHOSPHATED ORGANIC ACID (POAT) WSS-M97B55-A SILICATE, BORATE AND TRIETHANOLAMINE FREE NOT TO BE USED FOR NEW DESIGN 1. SCOPE When mixed 50/50 with water it shall be a satisfactory fluid for vehicle cooling systems that contain aluminum engine compo
3、nents, radiators and heater cores, ferrous metals and copper brass. These materials are for initial fill and service fill. 2. APPLICATION WSS-M97B55-A was originally released for passenger vehicle applications. Products listed on the Ford Approved source list meet this specification. Some materials
4、were intended to be used at a 30/70 mix ratio, therefore, will contain a higher inhibitor level when diluted to 50/50. Other materials are intended to be used at a 50/50 mix ratio and therefore, contain less inhibitors. Refer to the details on the approved source list for relative inhibitor levels.
5、3. REQUIREMENTS Ford Motor Company reserves the right to subject candidate coolants to any investigation they may consider necessary and use the data derived for approval qualification. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Compa
6、nys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 DOCUMENTATION 3.2.1 Approval of a new formulation Supplier must furnish to the affected Materials Engineering activity a completed and certified copy of the attached supplement A and test reports demonstrating full compliance w
7、ith all the requirements of this specification along with full formulation and manufacturing limits that apply to the material upon which approval is requested. Suppliers must provide full disclosure of their material formulation to, and be approved by, Materials Engineering. All tests must be certi
8、fied by a qualified and authorized representative of the test facility. 3.2.2 Approval of a new supplier to an approved formulation Supplier must furnish to the affected Materials Engineering activity a completed and certified copy of the attached supplement A and test reports demonstrating full com
9、pliance with paragraphs 3.1, 3.3, 3.4, 3.5.1-3.5.4, 3.6, 3.8-3.11 of this specification (or as directed by Materials Engineering). All tests must be certified by a qualified and authorized representative of the test facility. ENGINEERING MATERIAL SPECIFICATION WSS-M97B55-A Copyright 2012, Ford Globa
10、l Technologies, LLC Page 2 of 15 3.2.3 Supplying an approved formulation from concentrate Supplier must furnish to the affected Materials Engineering activity a completed and certified copy of the attached supplement A and test reports demonstrating full compliance with paragraphs 3.1, 3.3, 3.4, 3.5
11、.1, 3.6 (Aluminum water pump cavitation and MTU cavitation chamber tests only), 3.8-3.11 of this specification (or as directed by Materials Engineering). All tests must be certified by a qualified and authorized representative of the test facility. 3.3 COOLANT COMPOSITION Coolants supplied to this s
12、pecification must adhere to the following: . Minimum of 85% monoethylene glycol (75% virgin). . Anions ASTM D 5927 Chlorides at 25 ppm max Sulfates at 30 ppm max Glycolate at 10 ppm max . Metals, 5 ppm max, each metal ASTM D 6130 Aluminum Calcium Copper Iron Lead Magnesium 3.4 RECYCLED CONTENT Any r
13、edistilled (recycled) coolant, up to 10%, supplied to this specification must be preapproved by Materials Engineering and include full documentation of the process including feedstock of used coolant, control plans, FMEA, and compositional limits. Suppliers must certify full compliance with all the
14、requirements of this specification. 3.5 LABORATORY MATERIAL PERFORMANCE 3.5.1 The chemical and physical properties of coolant candidates shall meet the requirements of the tests listed below. Table 1 requirements are screening tests to determine if candidate coolants qualify for the more intensive e
15、valuations in para 3.7 (Fleet Test). ENGINEERING MATERIAL SPECIFICATION WSS-M97B55-A Copyright 2012, Ford Global Technologies, LLC Page 3 of 15 TABLE 1 TEST DESCRIPTION TEST METHOD TEST DESCRIPTION TEST LIMITS Color Visual Green Suspended Matter Visual None Density ASTM D 1122/ D 5931 at 20 C 1.112
16、min Water ASTM D 1123 5% max Freezing point ASTM D 1177/ D 3321/ D 6660 at 50% by vol Factory Fill: Service Fill: -34C (-29F) max -37C (-34F) max pH ASTM D 1287 at 50% by vol 7-11 Reserve Alkalinity ASTM D 1121 6.2 10.2 Foaming Characteristics ASTM D 1881 Foam height Break time 150 mL max 5 seconds
17、max Effect on automotive finish FLTM BI 113-01 Use 30% coolant/water in place of liquid soap. No effect greater than DI water. Viscosity ASTM D445 at 20 C Information only Electrical Conductivity ASTM D 1125 at 20 C, 50% by vol, Information only Thermal Conductivity ASTM D 2717 or Report at 20 C, at
18、 50% by vol Information only Glassware Corrosion Test ASTM D 1384 Cast iron, steel, brass and copper weight loss per coupon Cast aluminum, low lead solder weight loss per coupon High lead solder weight loss per coupon Average of 3 determinations 10 mg, max 10 mg, max Report Hot surface corrosion tes
19、t ASTM D 4340 . Initial qualification - Average of 2 determinations . After FLTM 102-02 - Average of 2 determinations 1.0 mg/cm2/week, max 1.0 mg/cm2 /week, max Phosphate ASTM D 5827 0.1 0.4 wt % Galvano-static pitting test FLTM BL 105-01 Pitting potential, mV vs. SCR -400 mv ENGINEERING MATERIAL SP
20、ECIFICATION WSS-M97B55-A Copyright 2012, Ford Global Technologies, LLC Page 4 of 15 3.5.2 Compatibility with Other Coolants Prepare samples of containing 10%/90%, 30%/70%, 50%/50%, 70%/30% and 90%/10% of test coolant and each coolant currently supplied to the market in which the coolant is to be use
21、d for both initial fill and after market applications. Samples are then tested to the following tests. Glassware Corrosion Test (ASTM D1384) - Same test limits as in Table 1. Hot Surface Corrosion Test (ASTM D4340) - Same test limits as in Table 1. 3.5.3 Storage Stability Prepare hard water by addin
22、g 275mg of calcium chloride (CaCl2) to 1 liter synthetic corrosive water described in ASTM D1384 (Test Solutions section). Prepare six coolant samples of around 100ml using the test coolant and the hard water solution. Samples are to have coolant concentrations of 100% (samples 1 and 2), 75% (sample
23、s 3 and 4) and 50% (samples 5 and 6). Put all samples in clean, labeled polymethylpentene (PMP) bottles for testing. (French square-type bottle may aid visual check.) All samples must pass hot and cold storage stability testing for the coolant to pass. Hot Storage Stability - Samples 1, 3 and 5 are
24、heat storage tested in a circulating air oven at 65 +/- 2 C for 14 days. Remove samples on days 2, 4, 7, 10 and 14. Allow to cool to room temperature. Check for precipitates, deposits, gelation and phase separation. “Fish eyes” on the top (from defoamer) is acceptable. If anything other than “fish e
25、yes” is present, terminate test and write as failure. Cold Storage Stability - Samples 2, 4 and 6 are cold storage tested at -40C for 14 days. Remove the samples on days 2, 4, 7, 10 and 14. Allow to go to room temperature. Check for precipitates, deposits, gelation and phase separation. “Fish eyes”
26、on the top (from defoamer) is acceptable. If anything other than “fish eyes” is present, terminate test and write as failure. 3.5.4 Compatibility with Polymeric Materials Testing shall be performed using currently approved coolant and proposed coolant. A comparison shall be made between the results
27、for both coolants. Results of the testing must be reported to the responsible Materials Engineer. Testing will be completed by the polymer supplier under the direction of Materials Engineering. Elastomer Testing For currently approved materials for hoses (tube materials only), o-rings, and gaskets c
28、ontact the responsible Materials Engineer. Immersion in Engine Coolant (FLTM BO 130-01, 1000 h at 125 +/- 2 C) Hardness change Rate and Report Tensile Strength Change, max Rate and Report Elongation at Break Change, max Rate and Report Volume Change Rate and Report ENGINEERING MATERIAL SPECIFICATION
29、 WSS-M97B55-A Copyright 2012, Ford Global Technologies, LLC Page 5 of 15 Compression Stress Relaxation (o-rings and seals only) (ASTM D 6147, 25% compression) Test Method: Measure the initial back-force (Fo) after 30 minutes at 23 +/- 2 C. Age at 125 +/- 2 C and take back-force (Ft) measurements at
30、23 +/- 2 C after 24, 48, 96, 168 h and thereafter every 168 h until a total elapsed test time of 1000 h has been completed. Plot Ft against log 10 time in hours Fo Heat Aged (Test Method per para 3.6) F1000/Fo, min Rate and Report Immersion in Engine Coolant (Test Method per para 3.7) F1000/Fo, min
31、Rate and Report Plastics Testing (FLTM BO 130-01, 1000 h at 125 +/- 2 C, 50/50% coolant/water, 10 test specimens minimum, Unaged property values shall be determined at the time of the aged properties determination) Tensile Strength at Max Load, min Rate and Report (ISO 527, 5mm/minute test speed) Im
32、pact Strength, Izod, min Rate and Report (ISO 180, Test specimens to be notched before immersion, 23 +/- 2 C) Heat Aging 24 hours at 80 C, Nylon materials only (after 100h at 125 C in 50/50 coolant/water, 24 hours at 80 C and 24 hours at 23 C). Tensile Strength at Max Load, min Rate and Report (ISO
33、527, 5mm/minute test speed) Impact Strength, Izod, min Rate and Report (ISO 180, Test specimens to be notched before immersion, 23 +/- 2 C) ENGINEERING MATERIAL SPECIFICATION WSS-M97B55-A Copyright 2012, Ford Global Technologies, LLC Page 6 of 15 3.6 DURABILITY TESTING TABLE 2 TEST DESCRIPTION TEST
34、METHOD TEST DESCRIPTION TEST LIMITS Aluminum water pump cavitation ASTM D 2809, sample size n=3 minimum 100 h 300 h 8 min 8 min FVV Ultrasonic Cavitation Test Test both aluminum and cast iron heads. Weight loss in cavitation chamber 40% coolant 20% coolant Weight loss in the coupon 40% coolant 20% c
35、oolant Scale Form 30 mg/coupon, max 50 mg/coupon, max 15 mg/coupon, max 25 mg/coupon, max None Engine Dynamometer Test FLTM BL 102-02 using 4.6L engine and running for 1728 hours to simulate 100k long life. Radiator Heat Rejection Test (QCBTU Method) Heater Core Deposit Weight 85% of original, min 1
36、.0 mg/cm2, max Visual analysis of aluminum water pump. Use ASTM D2809 to rate the pump. Leak test in dunk tank. Examine bleed hole. Check for build-up at hole that traveled past the hole. Rating 9, min. No leakage. Report results. Coupon Change Interval A test bundle shall be tested every 96 hours (
37、minimum of 17 sets during test) and one bundle for the duration of the test. Test Coupon Weight Loss Determine weight loss for all similar metal coupons on test for each 96 hour period. Determine and report the weight loss for each coupon that was in for the duration of the test. Ave. of all 96-hour
38、 coupons (each type)-10 mg, max. Any individual coupon (each type)-30 mg, max. Except copper, report copper loss Coupons in the system for the duration, report results only. Aluminum cylinder head internal surfaces Visual analysis for pitting per the following. 1. Section the head parallel to the he
39、ad deck (or flame surface where spark No excessive deposits allowed. No pitting in excess of 1 mm diameter. ENGINEERING MATERIAL SPECIFICATION WSS-M97B55-A Copyright 2012, Ford Global Technologies, LLC Page 7 of 15 plugs fire) about 4 cm into the casting. 2. Look at the cylinder head surface with st
40、ereomacroscope. 3. Pay particular attention to the areas upstream and downstream of the spark plug hole and in the exhaust port siamese (between the two exhaust ports) on the water jacket side. 4. Using 10-40X magnification, look for darkened/damage appearing areas, which are indicative of cavitatio
41、n. Radiator Internal corrosion test Modified ASTM D2570 Exceptions to D2570: 1. Coolant Concentration: 45% 2 Aggressive Ion Concentration: 100 ppm of chloride, sulfate and bicarbonate (use sodium salts) in the final mixture. 3. Coolant Flow Rate: 49 +/- 1 L/min/radiator, maximum of 1 core per test s
42、tand. 4. Time/Temperature Cycle: 16 hr, circulating at 107 C; 8 hr, non-circulating at room temp. Total time 60 days (1440 hrs). 5. System pressure: No externally applied pressure. System pressure not to exceed 110 Kpa (16 PSIG). 6. Metal coupons: No metal test coupons. 7. Radiator position: Tested
43、in vehicle position. 8. Product Engineering Office approval of the test system is required prior to test initiation at a new facility. 9. Report rating per Appendix I. Leak test: The radiator shall not exceed a total leak rate of 5.0 cc/min when pressurized to 21 psig and tested submerged in water a
44、t 22 +/- 1C. Internal Corrosion Damage: Cut apart core and examine susceptible areas with a microscope for evidence of crevice attack, pitting attack and erosion-corrosion. Corrosion pits, d crevices, etc. depths are to be established with metallographic cross-sections. No corrosion site on the core
45、 tubes or headers shall exceed 10% of the material thickness. Heater Core Internal Erosion-Corrosion Test Modified ASTM D2570 Exceptions to D2570: 1. Coolant Concentration: 15% 2. Aggressive Ion Concentration: None 3. Test Component: Current model heater core tube. 4. Coolant Flow Rate: 35.7 L/min.
46、5. Time/Temperature Cycle: 16 hr, circulating at 107 C; 8 hr, non-circulating at room temp. Total time 8 weeks (1344 hrs). 6. System pressure: No externally applied pressure. 7. Metal coupons: No metal test coupons. 8. Heater core position: Tested in vehicle position. 9. Product Engineering Office a
47、pproval of the test system is required prior to Leak test: The heater core assembly shall not exceed a total leak rate of 1.0 cc/min when pressurized to 241 kPa (35 psig) at 21 +/- 3 C. Conditions shall be met in air and submerged in water for 20 sec. Internal Corrosion Damage: Cut apart core and ex
48、amine susceptible areas with a microscope for evidence of crevice attack, pitting attack and erosion-corrosion. Pit and crevice depths are to ENGINEERING MATERIAL SPECIFICATION WSS-M97B55-A Copyright 2012, Ford Global Technologies, LLC Page 8 of 15 test initiation at a new facility. 10. Report ratin
49、g per Appendix I. be established with metallographic cross-sections. No corrosion site on the core tubes, tanks, headers or connector tubes shall exceed 15% of the material thickness. Note: Ends of the core tubes and connectors may exhibit “knife edge” attack. The depth measurement should be made at least 3mm away from the tube end. Heater Core Internal corrosion test Modified ASTM D2570 Exceptions to D2570: 1. Coolant concentration: 45% 2. Aggressive Ion Concentration: 100 ppm of chloride, sulfate
