1、 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 Navistar, Inc. AUGUST 2016 Page 1 of 6 NAVISTAR, INC. Material, Parts, and Process Specifications (
2、MPAPS) NUMBER: MPAPS BT-10 Former Designation: CEMS BT-10 TITLE: Oxidation Corrosion Test CURRENT REV No.: 1608 DATE: Aug. 2016 WRITTEN/EDITED BY: W. Cook APPROVED BY: R. Goluch SUPERSEDES: Rev. August 2009 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may
3、involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicability of regulatory limits prior to use. 1.
4、0 SCOPE This is a method for determining oxidation stability of fluids and their corrosive attack on metals. 2.0 APPARATUS 2.1 Test cell - Pyrex glass test tube, 38 x 300 millimeters, with a 34/45 standard taper ground glass joint 2.2 Condenser - Allihn type, Pyrex glass, 300 millimeter jacket and a
5、 34/45 standard taper ground glass joint to fit the test cell. 2.3 Air tube - Pyrex (see Figures 1 and 3, pages 3 and 5, respectively) 2.4 Ring rod - (see Figure 2, page 4) 2.5 Bath capable of maintaining a test temperature 2F (1C) 2.6 Analytical balance with a sensitivity of 0.1 milligram 2.7 Nylon
6、 or stainless steel forceps 2.8 Flowmeter capable of measuring 50 5 milliliters per minute of clean dry air 2.9 Four ounce (120 ml) bottle 3.0 MATERIAL The metal corrosion specimens will be as shown in Figure 4, page 5, and will meet the following specifications: 3.1 Aluminum, cold rolled sheet: 202
7、4-0 per ASTM B 209 (AA2024-0 per SAE J457) 3.2 Copper, cold rolled annealed sheet: Alloy 110 per ASTM B 152 (CA110 per SAE J463), or Type C11000 per MPAPS C-3 3.3 Steel, SAE 1010 cold rolled sheet 3.4 Cartridge brass, annealed: Alloy 260 per ASTM B 36 (CA260 per SAE J463), or Type C26000 per MPAPS C
8、-3. 3.5 Test fluid Other required test fluids/materials are: 3.5.1 Mild wetting agent, Alconox or equivalent: 3.5.2 Potassium cyanide, reagent grade: 3.5.3 Toluene, reagent grade 3.5.4 Alundum, 90 mesh, RR Crystalline, Blue Label NUMBER: MPAPS BT-10 TITLE Oxidation Corrosion Test CURRENT ISSUE DATE:
9、 August 2016 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 Navistar, Inc. AUGUST 2016 Page 2 of 6 3.5.5 Isopropyl alcohol, reagent grade 3.5.6 Tri
10、chloroethylene, technical grade 3.5.7 Cleansing tissue, Kleenex or equivalent 3.5.8 Acetone, reagent grade 3.5.9 No. 212 Eberhard Faber Eraser or equivalent 3.5.10 Cotton, clean 3.5.11 Rubber or plastic gloves 4.0 PROCEDURE 4.1 Prepare the metal specimens as follows: Clean the metal specimens by was
11、hing with hot toluene followed by rinsing with isopropyl alcohol. Rub the surface with cotton dipped in toluene and alundum using enough pressure to remove all surface imperfections. The edges of the specimens and hole should also be polished. Rewash the specimens as before and wipe with a cleansing
12、 tissue. For the final rinse wash with alcohol, handling the specimens with stainless steel or nylon forceps, and allow to dry on glass or stainless steel hooks. CAUTION: Do not use the same alundum for cleaning different metals as this may transfer metal. 4.2 Assemble ring rod on the air tube. Weig
13、h each specimen to 0.1 milligram and place on the ring rod ready for immediate use. Record as Weight No. 1. 4.3 Place test specimens, ring rod and air tube assembly into the test cell. Add sufficient test fluid to cover specimens. The height of the test fluid should be 0.25 to 0.50 inch (6 to 12 mm)
14、 above the specimens. Install the condenser and then place the assembly in the bath maintained at the specified temperature such that the assembly is immersed above the level of the fluid in the test cell. Start clean, dry air through the cell and adjust the flow rate to 50 + 5 milliliters per minut
15、e. Start flow of cooling water through condenser. If foam rises to bottom tip of condenser, discontinue the test and restart with clean glassware. If foaming persists, valid test results are not possible. 4.4 At the end of the specified time period, shut off the air, and water, and remove the test a
16、ssembly from the bath. Remove condenser from the assembly. Raise the ring rod air tube assembly to permit the test fluid to drain from the specimens. Remove the test specimens, vapor degrease with trichloroethylene and allow specimens to cool to 70 to 80F (21 to 27C). Weigh each specimen to the near
17、est 0.1 milligram, record as Weight No. 2. Transfer test fluid and solids, if any, into a 40 ounce (120 milliliter) bottle and retain as Weight No. 2. Transfer test fluid and solids, if any, into a 4 ounce (120 milliliter) bottle and retain for determination of precipitation number. Retain test cell
18、 for glassware rating as per ”Procedure, 4.8”. 4.5 Clean the metal specimens as follows: 4.5.1 Wash aluminum and steel specimens using cotton and a solution of wetting agent in hot water. 4.5.2 Dip copper and brass specimens in a 10% potassium cyanide solution until the film loosens (usually about a
19、 minute). Rinse with hot water, and wash as in step 4.5.1. 4.5.3 After hot water rinse, dry all specimens with acetone. 4.5.4 Lightly rub all the specimens with the eraser to remove any visible dried water or wetting agent film. 4.5.5 Rinse the specimens with acetone and allow to dry. 4.6 Weigh each
20、 specimen and record as Weight No. 3. 4.7 Within one hour of stopping test determine precipitation number of the test fluid recovered from the test cell in step 4.4. Use ASTM D 91 modified with a test tube per D 2273. NUMBER: MPAPS BT-10 TITLE Oxidation Corrosion Test CURRENT ISSUE DATE: August 2016
21、 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 Navistar, Inc. AUGUST 2016 Page 3 of 6 4.8 Rate the visual condition of the glassware after the tes
22、t as follows: Rating A B C D Amount of Deposit or Film None Very Light Light to Medium Medium to heavy 5.0 CALCULATIONS 5.1 For each metal, determine the weight loss in milligrams: Weight loss = Weight No. 1 - Weight No. 3 5.2 For each metal, determine the weight of the residue deposited on the test
23、 specimens in milligrams: Weight of deposit = Weight No. 2 - Weight No. 3 6.0 REPORT Report the following information: 6.1 Weight loss for each metal 6.2 Weight of residue deposited on each metal specimen 6.3 Precipitation number of the test fluid after oxidation-corrosion test 6.4 Glassware rating
24、6.5 The percent change of the Kinematic Viscosity at 100C prior to and after the Oxidation-Corrosion Test per ASTM D 445. 6.6 The infrared scan of fresh oil and of the oil used in the Oxidation-Corrosion Test as per ASTM E1252. NUMBER: MPAPS BT-10 TITLE Oxidation Corrosion Test CURRENT ISSUE DATE: A
25、ugust 2016 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 Navistar, Inc. AUGUST 2016 Page 4 of 6 NUMBER: MPAPS BT-10 TITLE Oxidation Corrosion Test
26、 CURRENT ISSUE DATE: August 2016 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 Navistar, Inc. AUGUST 2016 Page 5 of 6 NUMBER: MPAPS BT-10 TITLE Ox
27、idation Corrosion Test CURRENT ISSUE DATE: August 2016 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 Navistar, Inc. AUGUST 2016 Page 6 of 6 REVISION HISTORY Revision Level Change Approved by Date Approved 1608 Converted to MPAPS R. Goluch 8/3/2016
