ASTM_D_5603_-_01_2015.pdf

Designation:D560301(Reapproved 2015)Standard Classification forRubber Compounding MaterialsRecycled VulcanizateParticulate Rubber1This standard is issued under the fixed designation D5603;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.1.Scope1.1 This classification covers the compounding materialcommercially known as recycled vulcanizate particulate rub-ber.Recycled vulcanizate particulate rubber is the product thatresults when vulcanizate rubber has been processed by somemeans to obtain a desired particle size distribution.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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.2.Referenced Documents2.1 ASTM Standards:2D297 Test Methods for Rubber ProductsChemical Analy-sisD1418 PracticeforRubberandRubberLaticesNomenclatureD1509 Test Methods for Carbon BlackHeating LossD1566 Terminology Relating to RubberD1900 Practice for Carbon BlackSampling Bulk Ship-mentsD3182 Practice for RubberMaterials,Equipment,and Pro-cedures for Mixing Standard Compounds and PreparingStandard Vulcanized SheetsD4483 Practice for Evaluating Precision for Test MethodStandards in the Rubber and Carbon Black ManufacturingIndustriesD5644 Test Methods for Rubber Compounding MaterialsDetermination of Particle Size Distribution of RecycledVulcanizate Particulate RubberE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE105 Practice for Probability Sampling of MaterialsE122 Practice for Calculating Sample Size to Estimate,WithSpecified Precision,the Average for a Characteristic of aLot or Process3.Terminology3.1 Definitions:3.1.1 recycled vulcanizate particulate rubber,nrecyclablevulcanizate rubber that has been processed to give particulatesor other forms of different shapes,sizes,and size distributions.3.1.1.1 DiscussionThe words“vulcanizate”and“vulca-nized”are interchangeable.Additional terminology associatedwith this classification can be found in Terminology D1566.3.1.2 parent compound,noriginal compound used in theproduct.4.Significance and Use4.1 Recycled vulcanizate particulate rubber is important inrubber compounding.It allows the rubber compounder to adda certain percentage of rubber filler back into its parent orsimilar compounds or to use the material as substitute or standalone compound.Its use may lower compound costs orimprove performance characteristics,or both.4.2 Many types of recycled vulcanizate particulate rubberare available,with the number of types of vulcanizate particu-late rubber limited only by the number of parent compounds.4.3 Use of recycled rubber has a positive environmentalimpact.5.Classification of Recycled Vulcanizate ParticulateRubber5.1 Several grades of recycled vulcanizate particulate rub-ber exist.Their classification is based on two major character-istics:particle size distribution and the polymer type found inthe parent rubber from which the recycled vulcanizate particu-late rubber was derived.5.2 Particle Size Distributionmaximum particle size.(Forproduct mesh size designations,see 5.5.)1This classification is under the jurisdiction of Committee D11 on Rubber and isthe direct responsibility of Subcommittee D11.20 on Compounding Materials andProcedures.Current edition approved June 15,2015.Published October 2015.Originallyapproved in 1996.Last previous edition approved in 2008 as D5603 01(2008).DOI:10.1520/D5603-01R15.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.2.1 Coarse rubber powders are products with designationsof 425 m(40 mesh)or larger.These materials typically rangein particle sizes from 2000 m(10 mesh)to 425 m(40 mesh)regardless of polymer type or method of processing.5.2.2 Fine rubber powders are products with designationssmaller(finer)than 425 m(40 mesh).These materialstypically range in particle sizes from less than 300 m(50mesh)to less than 75 m(200 mesh)regardless of polymertype or method of processing.5.3 Classification by Parent Compounds:5.3.1 Based on polymer/compound type alone,the threemost common grades(Grades 1,2,and 3)used in rubbercompounding and three other grades are shown as follows:5.3.1.1 Grade 1Whole tire recycled vulcanizate particu-late rubber is prepared from passenger car,