1、Designation:D596415aStandard Practice forRubber IRM 901,IRM 902,and IRM 903 Replacement Oils forASTM No.1,ASTM No.2,ASTM No.3 Oils,and IRM 905formerly ASTM No.5 Oil1This standard is issued under the fixed designation D5964;the number immediately following the designation indicates the year oforigina
2、l adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONTest Method D471 was revised in February 1995,establishing IRM 902 and I
3、RM 903 asreplacements for ASTM No.2 and No.3 immersion oils,respectively.Unlike ASTM No.2 and No.3 oils,the two IRM oils are severely hydrotreated,have a demonstrated negativeAmes test and do notrequire cancer warning labels under the OSHA Hazard Communication Standard published inNovember 1983.Alth
4、ough it was attempted to match the effect of theASTM oils on rubber propertiesin immersion testing as closely as possible,in general,neither of the IRM oils produces test resultsexactly identical to the ASTM oils it replaced.Test Method D471 was again revised in October 2006,establishing IRM 901 as
5、a replacement forASTM No.1 immersion oil.The replacement was necessitated by the sudden unavailability ofASTMNo.1 oil.Comprehensive research and development was conducted to establish a suitablereplacement.A Precision and Bias statement will be prepared in accordance with Practice D4483 atthe conclu
6、sion of a forthcoming interlaboratory test program and included in Test Method D471.Although an attempt was made to match the effect of the ASTM No.1 oil on rubber properties inimmersion testing as closely as possible,preliminary findings indicate that IRM 901 oil produces testresults that are not i
7、dentical to the ASTM oil it replaced.Please refer to Test Method D471,Table 1,for a description of the specific characteristics of IRM 901 and ASTM No.1 oils.The selections for replacement ASTM No.2 and No.3 oils were made on the basis of an objectivecomprehensive test program as described in this p
8、ractice and decisions on the data generated in thisprogram were made in open meetings of Subcommittee D11.15.The SAE Committee on AutomotiveRubber Specifications(CARS)made a recommendation on the replacement oils that was identical tothe decisions made by D11.15.This practice addresses the need for
9、establishing a correlation between test results obtained withIRM versusASTM oils,based on results of the described test program.Although the test program wasquite comprehensive,it cannot begin to address the numerous variations in compound recipes used inthe rubber industry.Correlations established
10、by this practice may therefore not always providesatisfactory results.In this case it is suggested that other approaches be used,such as a directcomparison of each specific rubber compound in the respective ASTM and IRM oils.All newspecifications,including oil immersion testing,shall be established
11、using IRM 901,IRM 902,andIRM 903 in place of ASTM No.1,ASTM No.2,and ASTM No.3 oils,respectively.1.Scope1.1 This practice covers three immersion oils to be used asreplacements forASTM No.1,No.2,and No.3 immersion oilsas called for in Test Method D471.The immersion oils will bedesignated as IRM 901 a
12、s a replacement for ASTM No.1 oil,IRM 902 as a replacement for ASTM No.2 oil,and IRM 903as a replacement for ASTM No.3 oil.The new reference oilshave been developed under a new Committee D11 policy onreference materials(see Practice D4678 for background on thenew policy and procedures).1.2 The oils,
13、IRM 901,IRM 902,and IRM 903,are similarbut not fully equivalent to ASTM No.1,ASTM No.2,and1This practice is under the jurisdiction ofASTM Committee D11 on Rubber andis the direct responsibility of Subcommittee D11.15 on Degradation Tests.Current edition approved Nov.1,2015.Published December 2015.Or
14、iginallyapproved in 1996.Last previous edition approved in 2015 as D5964 15.DOI:10.1520/D5964-15A.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 ASTM No.3 oil,respectively.Refer to Table 1 for a descrip-tion of the typical properties and
15、 specifications for these oils.1.3 ASTM No.5 Oil was accepted into Specification D5900as an industry reference material in 2010 and designated asIRM 905.The composition,and properties of this immersionoil were not changed and the data in Table 1 remains current.It was listed among the IRM immersion
16、oils in Test MethodD471 in 2010.1.4 This practice gives the necessary background and detailson the changeover from the previous oils to the new oils.SeeAnnex A1 for additional information on the commercial oilsselected to replace ASTM No.2 and No.3 oil and the testprogram conducted for this selection process.The changeoverfrom ASTM to IRM oils is proposed in two steps:1.4.1 Step 1A transition phase that makes use of theEquivalent Volume Swell(EVS)for each of the two replace-ment oils.EVS(902)is
