ASTM_D_3851_-_07_2012.pdf

Designation:D385107(Reapproved 2012)Standard Specification forUrethane Microcellular Shoe Soling Materials1This standard is issued under the fixed designation D3851;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 specification covers urethane microcellular materi-als for shoe soling applications.It provides physical propertyrequirements and identifies test methods for determining thosespecific properties.1.2 SI units are to be regarded as the preferred units ofmeasurements for values.The inch-pound values in parenthe-ses can be used if there is an agreement between the contractualparties.NOTE1There is no known ISO equivalent to this standard.2.Referenced Documents2.1 ASTM Standards:2D412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD624 Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD1052 Test Method for Measuring Rubber DeteriorationCut Growth Using Ross Flexing ApparatusD1622 Test Method for Apparent Density of Rigid CellularPlasticsD1938 Test Method for Tear-Propagation Resistance(Trou-ser Tear)of Plastic Film and Thin Sheeting by a Single-Tear MethodD2240 Test Method for Rubber PropertyDurometer Hard-nessD3489 Test Methods for Microcellular Urethane Materials3.Classification3.1 This specification covers three grades of microcellularurethane materials that may be selected for use according toabrasion resistance,cut-growth resistance,and other physicalproperties.The grades are classified as Grade 1,Grade 2,andGrade 3.4.Ordering Information4.1 Any product represented as complying with this speci-fication shall meet all the requirements listed herein for itsparticular classification.5.Physical Requirements5.1 The material shall conform to requirements for physicalproperties prescribed in Table 1.6.Test Methods6.1 The physical tests shall be in accordance with TestMethod D3489.7.Inspection7.1 Inspection of the material shall be agreed upon inwriting between the purchaser and the supplier as part of thepurchase contract.7.2 Testing for conformance to requirements shall be donein accordance with this specification and Test Methods D3489.8.Retest and Rejection8.1 If any failure occurs,the materials may be retested toestablish conformity in accordance with agreement betweenthe purchaser and the seller.9.Packaging,Marking,and Labeling9.1 PackagingThe material shall be packed in standardcommercial containers,so constructed as to ensure acceptanceby common or other carriers for safe transportation at thelowest rate to the point of delivery,unless otherwise specifiedin the contract or order.9.2 MarkingThe shipping container shall be marked withthe name,type,and quality of material in accordance with thecontract or order under which the shipment is made.Theshipping container shall also be marked with the name of themanufacturer and the contract or order number.9.3 LabelingIn order that purchasers may identify prod-ucts complying with all requirements of this specification,producers choosing to produce such products in conformance1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.22 on CellularMaterials-Plastics and Elastomers.Current edition approved Aug.1,2012.Published October 2012.Originallyapproved in 1980.Last previous edition approved in 2007 as D3851 07.DOI:10.1520/D3851-07R12.2For 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 with this voluntary specification may include a statement inconjunction with their name and address on labels,invoices,sales literature,and the like.The following statement issuggested.9.3.1“This product conforms to all the requirements forGrade _ established in ASTM Standard SpecificationD3851.Full responsibility for conformance of this productwith the standard is assumed by(name and address ofconverter or distributor).10.Keywords10.1 footwear;microcellular;polyurethane;shoe;shoe sol-ing;sole;urethaneAPPENDIX(Nonmandatory Information)X1.METHODS FOR DETERMINING MATERIAL SHRINKAGEX1.1 RationaleX1.1.1 Any material shrinkage has the potential to affectprocessing(such as ease of removal of parts from molds)andthe finished parts dimensions.Minimum and maximum re-quirements for shrinkage shall be agreed on between thepurchaser and the supplie