1、Designation: D6203 17Standard Test Method forThermal Stability of Way Lubricants1This standard is issued under the fixed designation D6203; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pare
2、ntheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This test method covers the evaluation of the thermalstability of hydrocarbon-based way lubricants, although oxida-tion may occur during the test.1.
3、2 The values stated in SI units are to be regarded asstandard.1.2.1 ExceptionThe values given in parentheses are forinformation only.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to estab
4、lish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles
5、for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D4057 Practice for Manual Sampling of Petroleum andPetroleum Products2.2 Other Standards:UNS C11000
6、Electrolytic Tough Pitch Copper3AISI W1 1% Carbon Tool Steel43. Summary of Test Method3.1 A beaker containing test oil and copper and steel rods isplaced in a gravity convection electric oven for 24 h at a testtemperature of 100 C.At the completion of the test, the copperand steel rods are visually
7、rated for discoloration and thebeaker is visually evaluated for deposits.4. Significance and Use4.1 Thermal stability characterizes physical and chemicalproperty changes which may adversely affect an oils lubricat-ing performance. This test method evaluates the thermalstability of a way lubricant in
8、 the presence of copper and steelrods at 100 C. Deposits and rod colors are the evaluationcriteria. No correlation of the test to field service has beenmade.4.2 This test method is intended for use in qualifying a waylubricant, rather than for quality control or condition monitor-ing purposes.5. App
9、aratus5.1 Gravity Convection Electric Oven, capable of maintain-ing the samples at a test temperature of 100 C 6 2 C.5.2 Calibrated Temperature Indicator, suitable for measur-ing and controlling the oven temperature.5.3 Griffn Beakers, borosilicate glass, 100 mL.5.4 Copper Test Specimens, in accorda
10、nce withUNS C11000, 99.9 % pure electrolytic tough pitch copper,6.4 mm in diameter by 7.6 cm in length (0.25 in. by 3.0 in.).5.5 Steel Test Specimens, in accordance with AISI W1 1 %carbon steel, 6.4 mm in diameter by 7.6 cm in length (0.25 in.by 3.0 in.).5.6 Silicon Carbide Abrasive, 320 grit with c
11、loth backing.5.7 Crocus Cloth.5.8 Fives Cincinnati Color Chart.55.9 Facial Tissue.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility ofSubcommittee D02.L0.01 on Metal Removal Fluids and Lubricants.Curr
12、ent edition approved Dec. 1, 2017. Published March 2018. Originallyapproved in 1997. Last previous edition approved in 2012 as D6203 06 (2012).DOI: 10.1520/D6203-17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Bo
13、ok of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Copper Development Assoc., 2 Greenwich Office Park, Box1840, Greenwich, CT 06836.4Available from American Iron and Steel Institute (AISI), 1140 ConnecticutAve., NW, Suite 705, Wash
14、ington, DC 20036, http:/www.steel.org.5The sole source of supply of the apparatus known to the committee at this timeis Fives Cincinnati, Lubricants Laboratory, 2200 Litton Lane, Hebron, KY 41048;www.F or by e-mail at FMS.LubricantsLabFIVESGROUP.com. Ifyou are aware of alternative suppliers, please
15、provide this information to ASTMInternational Headquarters. Your comments will receive careful consideration at ameeting of the responsible technical committee,1which you may attend.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive,
16、PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued
17、 by the World Trade Organization Technical Barriers to Trade (TBT) Committee.16. Reagents6.1 Reagent Grade Acetone. (WarningFlammable, healthhazard.)6.2 Reagent Grade Heptane. (WarningFlammable,health hazard.)7. Preparation of Metal Rods7.1 Handle the rods at all times using forceps, facial tissue,o
18、r suitable gloves.7.2 Clean the iron and copper catalyst rods, whether new orpreviously used, prior to use. Clean the rods with the 320 gritsilicon carbide abrasive cloth while rotating the rods in a drillchuck at 1700 rev min to 1800 rev min. Clean the surface untilit has a bright copper or steel a
19、ppearance. Discard rods whendiameter is less than 6.2 mm.7.3 Prepare surfaces finally with a crocus cloth. Remove allgrind marks. Finish the rods to a lightly polished surface finish.7.4 Wash the rods individually with acetone and air dry oncompletion of the polishing operation.8. Test Procedure8.1
20、Place a representative 75 mL sample of test oil obtainedin accordance with Practice D4057 sampling procedure in aclean 100 mL Griffin beaker containing one each of the cleanedand polished iron and copper rods.8.2 Place the rods crossed in the beaker so that they are incontact at one point. The conta
21、ct point of the rods should bebelow the surface of the fluid.8.3 Place the beaker and its contents on a tray in the oven.Keep the beakers as far from the walls as possible.8.4 Maintain the temperature at the center of the oven at98 C to 102 C for 24.0 h to 24.5 h.8.5 Keep the oven doors closed durin
22、g the entire test period.8.6 At the completion of 24 h, remove the beakers from theoven and allow to cool to room temperature before proceeding.Continue within 2 h. Individually remove the rods from the oilsample. Inspect for deposits clinging to the rods. Wipe with apiece of facial tissue and inspe
23、ct for color and etching.8.7 Copper Rod InspectionWash the rod with heptane toremove all oil and allow to air dry. Visually evaluate the colorof the rod against the Fives Cincinnati color chart and record.Record any etching that is evident to the naked eye.8.8 Steel Rod AnalysisWash the rod with hep
24、tane toremove all oil and allow to air dry. Visually evaluate the colorof the rod against the Fives Cincinnati color chart and record.Record any etching that is evident to the naked eye.8.9 Beaker InspectionInvert the beaker and allow thesample to drain for at least 30 min. Rinse with two 50 mLporti
25、ons of heptane. Inspect the beaker and record any depositsthat are visible to the naked eye.9. Report9.1 Report the following information:9.1.1 Color of the copper and steel rods using the numericaldesignations on the chart.9.1.2 Any etching.9.1.3 Whether any deposits were found on the rods orbeaker
26、10. Precision and Bias10.1 PrecisionIt is not possible to specify the precision ofthe procedure in this test method for measuring the thermalstability of way lubricants, because the results are visualratings, not numerical values. Therefore, a statistical treatmentis inappropriate. The results of in
27、terlaboratory testing areshown in Table 1.10.2 BiasSince there is no accepted reference materialsuitable for determining the bias for the procedure, bias has notbeen determined.11. Keywords11.1 bed lubricants; Cincinnati Milacron; copper corrosion;deposits; heat test; oil sludging; slideway lubrican
28、ts; steelcorrosion; thermal stability; way lubricantsTABLE 1 Results of Interlaboratory TestingCopper Rod Rating Steel Rod Rating Deposits (Y/N)Cooperator: 3 4 5 6 3 4 5 6 3 4 5 6Waylube:A 12211111NNNNB 55351111NNNN545C 33421111YNNND 33521111NNNND6203 172SUMMARY OF CHANGESSubcommittee D02.L0.01 has
29、identified the location of selected changes to this standard since the last issue(D6203 06 (2012) that may impact the use of this standard. (Approved Dec. 1, 2017.)(1) Revised subsection 5.8 and related footnote.(2) Revised subsection 7.2.(3) Revised Section 8.ASTM International takes no position re
30、specting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This
31、 standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Inter
32、national Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown b
33、elow.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 173
