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TM_D_5204_
_13
Designation:D520413Standard Classification System forPolyamide-Imide(PAI)Molding and Extrusion Materials1This standard is issued under the fixed designation D5204;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 classification system covers polyamide-imide ma-terials suitable for injection molding and extrusion.1.2 The properties included in this classification system arethose required to identify the compositions covered.It ispossible that other requirements are necessary to identifyparticular characteristics important to specialized applications.The use of suffixes as shown in Section 5 is one way ofspecifying these requirements.1.3 This standard allows for the use of recycled materialsprovided that specification requirements based upon this clas-sification system are met.1.4 This classification system and subsequent line call-out(specification)is intended to be a means of calling out plasticsmaterials used in the fabrication of end items or parts.It is notintended for the selection of materials.Material selection needsto be made by those having expertise in the plastics field aftercareful consideration of the design and the performancerequired of the part,the environment to which it will beexposed,the fabrication process to be employed,the inherentproperties of the material other than those covered by thisclassification,and the economics.1.5 The values stated in SI units are to be regarded as thestandard.(Reporting in inch-pound units is acceptable.)1.6 The following precautionary caveat pertains only to thetest methods portion,Section 11,of this classification system:This standard does not purport to address all of the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.NOTE1There is no known ISO equivalent to this standard.2.Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD150 Test Methods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical InsulationD256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD618 Practice for Conditioning Plastics for TestingD790 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 PlasticsD1525 Test Method for Vicat Softening Temperature ofPlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1708 Test Method for Tensile Properties of Plastics by Useof Microtensile SpecimensD2863 Test Method for Measuring the Minimum OxygenConcentration to Support Candle-Like Combustion ofPlastics(Oxygen Index)D3641 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 SpecificationsIEEE/ASTM SI-10 Standard for Use of the InternationalSystem of Units(SI):The Modern Metric System1This classification system is under the jurisdiction ofASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Sept.1,2013.Published September 2013.Originallyapproved in 1991.Last previous edition approved in 2011 as D5204-11.DOI:10.1520/D5204-13.2For 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 2.2 Military and Federal Specifications and Standards:3MIL-P-46179A Plastic Molding and Extrusion Materials,Polyamide-Imide(PAI)NOTE2MIL-P-46179A property requirements are the basis of Clas-sification System D5204.The Department of Defense adopted Classifica-tion System D5204 on July 27,1994,and canceled MIL-P-46179A.2.3 SAE Specifications:4AMS 3670B Polyamide-Imide Bar,Rod,and ShapesMolded or ExtrudedAMS 3670/1B Unfilled Polyamide-Imide Bar,Rod andShapesAMS 3670/2B Polyamide-Imide Bar,Rod and Shapes 20-G