ASTM_D_7293_-_12.pdf

Designation:D729312Standard Specification forExtruded and Compression-Molded Shapes Made fromPolyetherimide(PEI)1This standard is issued under the fixed designation D7293;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.INTRODUCTIONThis specification is intended to be a means of calling out plastic shapes used in the fabrication ofend items or parts.1.Scope*1.1 This specification covers requirements and test methodsfor the dimensions,workmanship,and the properties of ex-truded and compression-molded sheet,plate,rod and tubularbar manufactured from polyetherimide(PEI)resins.1.2 The properties included in this specification are thoserequired for the compositions covered.It is possible that otherrequirements will be necessary to identify particular character-istics important to specialized applications.These shall bespecified by using the suffixes as given in Section 5.1.3 This specification does not allow for the use of recycledplastics(as defined in Guide D7209).1.4 The values stated in English units are regarded asstandard in all property and dimensional tables.For referencepurposes,SI units are also included in Table 1 and Table S-PEI.1.5 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.NOTE1There is no known ISO equivalent to this standard.2.Referenced Documents2.1 ASTM Standards:2D256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-alsD883 Terminology Relating to PlasticsD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic Materi-alsD7209 Guide for Waste Reduction,Resource Recovery,andUse of Recycled Polymeric Materials and ProductsD5205 Classification System and Basis for Specification forPolyetherimide(PEI)MaterialsIEEE/ASTM SI-10 American National Standard for Use ofthe International System of Units(SI):The Modern MetricSystem2.2 ANSI Standard:3Z1.4-1993 Sampling Procedures and Tables for Inspectionby Attributes3.Terminology3.1 DefinitionsFor definitions of other technical termspertaining to plastics used in this specification,see Terminol-ogy D883.3.2 Definitions of Terms Specific to This Standard:3.2.1 rod,nextruded solid cylindrical shape with a mini-mum diameter of116in.(1.6 mm).3.2.2 sheet,nflat stock with thickness greater than14-in.(6.4-mm).3.2.3 tubular bar,nextruded annular shapes with mini-mum inside diameter of38in.(0.5 mm)and minimum wallthickness of116in.(1.6 mm).1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Aug.1,2012.Published October 2012.Originallyapproved in 2006.Last previous edition approved in 2006 as D7293 06.DOI:10.1520/D7293-06.2For 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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.*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 4.Classification4.1 This specification covers shapes extruded and compres-sion molded from polyetherimide(PEI)resins as listed in TableS-PEI.The PEI resin is included in the designation usingSpecification D5205 callout.4.1.1 The type of PEI extruded shape shall be categorizedby composition.4.1.2 There shall be only one class of PEI shape,for virginproducts.4.1.2.1 Class 1General purpose product made using100%virgin resin.4.2 The type and class shall be further differentiated basedon dimensional tolerances and dimensional stability(based onelevated temperature excursion testing).Grades 1 and 2 shapesare produced with the closest commercial tolerances andlowest stress levels for machined parts as delineated in TableAand Table B.Any additional or custom tolerance requirementsare to be specified.Custom tolerances shall be noted followingthe grade designation.TABLE S-PEI Requirements for PEI Shapes,Dry-as-Manufactured(0.2%Moisture)TypeDescriptionClassDescriptionGradeApplicableD5205CalloutADescriptionUltimateTensileStrength,min,psi(MPa)TensileElongation,%a