ASTM_D_4203_-_12.pdf

Designation:D420312Standard Specification for and Basis for Specifications forStyrene-Acrylonitrile(SAN)Injection and ExtrusionMaterials1This standard is issued under the fixed designation D4203;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 Department of Defense.1.Scope*1.1 This specification covers unfilled,filled,and reinforcedstyrene acrylonitrile(SAN)materials suitable for injectionmolding and extrusion.1.2 This classification system and subsequent line callout(specification)are intended to provide a means of calling outplastic materials used in the fabrication of end items or parts.It is not intended for the selection of materials.Materialselection can be made by those having expertise in the plasticfield only after careful consideration of the design and theperformance required of the part,the environment to which itwill be exposed,the fabrication process to be employed,thecosts involved,and the inherent properties of the material otherthan those covered by this standard.1.3 The properties included in this standard are thoserequired to identify the compositions covered.Other require-ments necessary to identify particular characteristics importantto specialized applications are to be specified using the suffixesspecified in Section 5.1.4 The values stated in SI units are to be regarded as thestandard.The values in parentheses are given for informationonly.1.5 The following precautionary caveat pertains only to thetest methods portion,Section 11,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.NOTE1This standard and ISO 4894-1 and ISO 4894-2 address thesame subject matter,but differ in technical content.Although this standardand ISO 4894-1 and ISO 4894-2 differ in approach or detail,data obtainedusing either are technically equivalent.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 PlasticsD648 Test Method for Deflection Temperature of PlasticsUnder Flexural Load in the Edgewise PositionD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-alsD792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to PlasticsD1238 Test Method for Melt Flow Rates of Thermoplasticsby Extrusion PlastometerD1525 Test Method for Vicat Softening Temperature ofPlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2584 Test Method for Ignition Loss of Cured ReinforcedResinsD3641 Practice for Injection Molding Test Specimens ofThermoplastic Molding and Extrusion MaterialsD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic Materi-alsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE105 Practice for Probability Sampling of MaterialsIEEE/ASTM SI-10 Standard for Use of the InternationalSystem of Units(SI):The Modern Metric System2.2 ISO Standards:3ISO 75 PlasticsDetermination of Temperature of Deflec-tion Under Load1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.15.03).Current edition approved Nov.15,2012.Published November 2012.Originallyapproved in 1989.Last previous edition approved in 2007 as D4203-07.DOI:10.1520/D4203-12.2For 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 ISO 178 PlasticsDetermination of Flexural PropertiesISO 180/1A PlasticsDetermination of Izod ImpactStrengthISO 294 PlasticsInjection Moulding Test Specimens ofThermoplastic MaterialsISO 306 PlasticsThermoplastic materialsDeterminationof Vicat Softening Temperature(VST)ISO 527 PlasticsDetermination of Tensile PropertiesISO 1133 PlasticsDetermination of the Melt Mass-FlowRate(MFR)and Melt Volume-Flow Rate(MVR)ofThermoplasticsISO 1183 Plastic