1、FORD LABORATORY TEST METHOD EU-BJ 010-01 2001 0724 FORD MODIFIED OXIDATION TEST Revised Editorial - no technical change A. Cockman Application This method is used to determine the stability of lubricating oils. Evaluation of the lubricant consists in determining the tendency of oil to thicken and/or
2、 to form insolubles, varnish and strong acids. Description of Test A covered beaker containing the sample is maintained at test temperature in a temperature controlled heating device. The sample is agitated by means of a steel paddle. Aluminum, steel and copper strips are immersed in the lubricant t
3、hroughout the test. Periodic oil sampling and aluminum strip inspection permit continuous test monitoring. Apparatus Required Heating Device For temperatures of 80 - 175 OC in the range of +/- 1. Glass Beaker Tall form, 400 mL, without spout. Stirring Rod Stainless steel (Sketch No. 3 shows suitable
4、 design). Cover Suitable metal (Sketch No. 1 shows suitable design). Strip Holder For dimension (see Sketch No. 2). Test Strips Steel body skin panels, aluminum, copper (see Figure 3). Filter Apparatus Millipore XXIO 047 O0 I Date I Action I Revisions I Copyright 02001, Fad Global Technologies, Inc
5、FORD LABORATORY TEST METHOD EU-BJ 010-01 Filter Millipore type HA, Catalogue No. WP 047 O0 (0.45 microns). Balance Accuracy +/- 0.1 mg. Viscometer Suitable for this test. Timing Device For viscosity determination. Sanding Paper 220 grit. Standard CRC Varnish Manual No. 8 Source : Coordinating Resear
6、ch Council, Inc. Thirty Rockefeller Plaza New York 20. New York USA Potentiograph (suitable) Stirring Device 1 O00 +/- 50 rpm Thermometer Set of thermometers for the temperature ranges as required in the relevant Material Specification. So Ive n t (a) Normal Pentane, commercial grade (b) Petroleum N
7、aphtha U-MC004-8004-01 Conditioning and Test Conditions All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 “C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specifie
8、d. Page 2 of 7 Copynght 02001, Ford Global Technologies, Inc FORD LABORATORY TEST METHOD EU-BJ 010-01 1. 2. 3. 4. 5. 6. 7. 8. 9. 1 o. 11. Procedure Set the temperature at the specified test temperature. Polish the aluminum (5), steel (I), and copper (1) strips using 220 grit paper for each lubricant
9、 to be tested. Rinse test strip in naphtha and dry. Clean a 400 mL beaker and add 275 mL of the oil to be tested. Using laboratory tongs place 1 steel, 1 copper and 5 aluminum test strips in the beaker strip holder. Place the beaker and contents in the heating device, insert the stirring rod through
10、 the opening of the cover and fit the strip holder and strips into the beaker. Ensure that the end of the stirring rod is 20 +/- 1 mm above the bottom of the glass beaker. Start the test, being careful not to overheat the sample, and run continuously (24 h per day) until completion of the specified
11、number of test hours. A 15 mL sample of test oil and an aluminum strip is removed from each beaker at 24 h intervals. The aluminum test strip is washed in petroleum naphtha and rated for varnish deposits using standard CRC varnish rating. Viscosity at 37.78 OC and 98.89 OC are determined using the A
12、STM D 445 method. The pentane insolubles are determined by diluting 1 gram of sample with 100 mL pentane and filtering through a 0.3 micron millipore filter, or as specified in the relevant specification. At the conclusion of the test, the additional data to be obtained is strong acid number, infrar
13、ed spectra from new and aged oil and viscosity increase. ASTM procedures are to be used when applicable. Page 3 of 7 Copynght 02001, Ford Global Technologies, Inc FORD LABORATORY TEST METHOD EU-BJ 010-01 Evaluation The following data is reported at the conclusion of the test: Test Number Oil Identif
14、ication Test Temperature Test Hours Type of Strips Viscosity of New Oil at 37.78 OC and 98.89 OC Viscosity Index, New Oil Acid Number of New Oil Viscosity of used oil at 37.78 OC and 98.89 OC Each 24 Hours Percent Viscosity Increased at 37.78 OC and 98.89 OC Each 24 Hours Pentane Insolubles Each 24
15、Hours Aluminum Strip Rating Each 24 Hours Strong Acid Number Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities. Page 4 of 7 Copynght 02001, Ford Global Technolo
16、gies, Inc FORD LABORATORY TEST METHOD EU-BJ 010-01 Condenser Sketch I Page 5 of 7 Copynght 02001, Ford Global Technologies, Inc FORD LABORATORY TEST METHOD EU-BJ 010-01 FORD MODIFIED OXIDATION TEST Strip Holder I. 100 92 1- I l I- Sketch 2 Page 6 of 7 Copynght 02001, Ford Global Technologies, Inc FORD LABORATORY TEST METHOD EU-BJ 010-01 FORD MODIFIED OXIDATION TEST U .- I 4 - 2o -I I Fasten with 3 mm screw Steel Test Strip 130x1 1x1 mm i SKETCH 3 Page 7 of 7 Copynght 02001, Ford Global Technologies, Inc
