1、Designation:D318506(Reapproved 2021)Standard Test Methods forRubberEvaluation of SBR(Styrene-Butadiene Rubber)Including Mixtures With Oil1This standard is issued under the fixed designation D3185;the number immediately following the designation indicates the year oforiginal adoption or,in the case o
2、f 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.1.Scope1.1 These test methods cover the standard materials,testformulas,mixing procedures,and test methods for
3、the evalu-ation of emulsion polybutadiene(EBR)and styrene-butadienerubbers(SBR)including the emulsion polybutadiene oil mas-terbatch rubbers,SBR oil masterbatches,and partially cross-linked and high Mooney rubbers.1.2 These test methods are also applicable to certain typesof solution SBR and solutio
4、n SBR oil masterbatches that areused in applications requiring vulcanization.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its
5、use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles
6、 on standard-ization established in the Decision on Principles 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:2D412 Test Methods for Vulcanized Rubber a
7、nd Thermoplas-tic ElastomersTensionD1646 TestMethodsforRubberViscosity,StressRelaxation,andPre-VulcanizationCharacteristics(Mooney Viscometer)D2084 Test Method for Rubber PropertyVulcanizationUsing Oscillating Disk Cure MeterD3182 Practice for RubberMaterials,Equipment,and Pro-cedures for Mixing Sta
8、ndard Compounds and PreparingStandard Vulcanized SheetsD3896 Practice for Rubber From Synthetic SourcesSamplingD4483 Practice for Evaluating Precision for Test MethodStandards in the Rubber and Carbon Black ManufacturingIndustriesD5289 Test Method for Rubber PropertyVulcanizationUsing Rotorless Cure
9、 MetersD6204 Test Method for RubberMeasurement of Unvulca-nized Rheological Properties Using Rotorless Shear Rhe-ometers2.2 ISO Standard:ISO 2322 Rubber,Styrene-Butadiene(SBR)Emulsion-Polymerized General-Purpose TypeTest Recipe andEvaluation of Vulcanization Characteristics33.Summary of Test Methods
10、3.1 These test methods include the standard test formulas,mixing procedures,and test methods for evaluating the follow-ing types of synthetic rubbers:3.1.1 Non-Oil-Extended Types,mill and Miniature InternalMixer(MIM)mixing procedures.3.1.2 Oil Masterbatch Types,mill and Miniature InternalMixer(MIM)m
11、ixing procedures.3.2 No correlation between results for mill and MIM mixingprocedures is implied.4.Significance and Use4.1 These test methods are mainly intended for refereepurposes but may be used for quality control of syntheticrubber production.They may also be used in research anddevelopment wor
12、k and for comparison of different rubbersamples in a standard formula.4.2 These test methods may also be used to obtain values forcustomer acceptance of rubber.1These test methods are under the jurisdiction of ASTM Committee D11 onRubber and Rubber-like Materials and are the direct responsibility of
13、 SubcommitteeD11.23 on Synthetic Rubbers.Current edition approved Nov.1,2021.Published November 2021.Originallyapproved in 1973.Last previous edition approved in 2016 as D3185 06(2016).DOI:10.1520/D3185-06R21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer
14、Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036.Copyright ASTM International,100 Barr Harbor Drive,PO B
15、ox 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 by the
16、World Trade Organization Technical Barriers to Trade(TBT)Committee.1?5.Standard Test Formulas5.1 Standard Formulas for Non-Oil-Extended TypesSeeTable 1.5.1.1 For the MIM procedure it is recommended that a blendof compounding materials,excluding carbon black,be pre-pared to improve accuracy in the weighing of these materials.The compounding material blend is prepared by blending aproportional mass of each material in a dry powder blendersuch as a biconical blender or vee blender.A mortar and pest
