ASTM_D_3182_-_16.pdf

Designation:D318216Standard Practice forRubberMaterials,Equipment,and Procedures for MixingStandard Compounds and Preparing Standard VulcanizedSheets1This standard is issued under the fixed designation D3182;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 parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This practice provides a listing of reference compound-ing materials required to prepare the rubber test compoundslisted in succeeding methods and contains procedures forweighing.It also specifies the mixing equipment,generalmixing procedures,vulcanization equipment and procedures.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.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 establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.For a specificwarning statement,see 5.5.2.Referenced Documents2.1 ASTM Standards:2D88 Test Method for Saybolt ViscosityD1646 TestMethodsforRubberViscosity,StressRelaxation,andPre-VulcanizationCharacteristics(Mooney Viscometer)D2084 Test Method for Rubber PropertyVulcanizationUsing Oscillating Disk Cure MeterD2161 Practice for Conversion of Kinematic Viscosity toSaybolt Universal Viscosity or to Saybolt Furol ViscosityD2226 Classification for Various Types of Petroleum Oilsfor Rubber Compounding UseD2501 Test Method for Calculation of Viscosity-GravityConstant(VGC)of Petroleum OilsD4678 PracticeforRubberPreparation,Testing,Acceptance,Documentation,and Use of Reference Mate-rialsD5289 Test Method for Rubber PropertyVulcanizationUsing Rotorless Cure MetersD6204 Test Method for RubberMeasurement of Unvulca-nized Rheological Properties Using Rotorless Shear Rhe-ometersE145 Specification for Gravity-Convection and Forced-Ventilation Ovens3.Significance and Use3.1 This practice shall be used for specific procedures usedin preparing rubber compounds for quality control ofproduction,for research and development purposes,and forcomparison of different materials.4.Standard Materials4.1 Standard Reference Materials:4.1.1 The materials required for standard rubber test formu-las shall be National Institute of Standards and Technology(NIST)Reference Materials or materials that are known tohave properties similar to these standard materials.However,in case of dispute,the following actual standard materials fromthe NIST of the United States shall be used:4.1.2 An Industry Reference Material(IRM)is a standardreference from a designated supplier and has been certified inaccordance with Practice D4678.3,41This practice is under the jurisdiction ofASTM Committee D11 on Rubber andis the direct responsibility of Subcommittee D11.20 on Compounding Materials andProcedures.Current edition approved Jan.1,2016.Published January 2016.Originallyapproved in 1973.Last previous edition approved in 2015 as D3182 15a.DOI:10.1520/D3182-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3NIST has discontinued supply of SRM 373,374,and 385.A substitute materialis available as IRM 2,1,and 201.The sole source of supply of IRM 1 and 2 knownto the committee at this time is Forcoven Products,Inc.,P.O.Box 1556,Humble,TX77338.The sole source of supply of IRM 201 known to the committee at this timeis Akron Chemical Co.,255 Fountain St.,Akron,OH 44304.If you are aware ofalternative suppliers,please provide this information to ASTM InternationalHeadquarters.Your comments will receive careful consideration at a meeting of theresponsible technical committee,1which you may attend.Supporting data have beenfiled at ASTM International Headquarters and may be obtained by requestingResearch Report RR:D11-1034.4Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:D11-1026.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 StandardIndustryReference ReferenceNIST Standard ReferenceMaterialMaterialMaterial or IRMNo.No.Zinc oxide370Sulfur371Stearic acid372Benzothiazyl disulfide2Tetramethylthiuram disulfide1Magnesium oxide376Oil furnace carbon blackHAF378Gas furnace carbon blackSRF382Mercaptobenzothiazole383N-tert-butyl-2-benzothiazolesulfenamide384SBR-1500386Natural rubber2014.2 Other standard or industry reference materials are asfollows:Industry Reference Black Current Lot in use at time oftesting A