1、Designation:D639421aStandard Classification System for and Basis for SpecificationforSulfone Plastics(SP)1This standard is issued under the fixed designation D6394;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revi
2、sion.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This classification system covers sulfone plastics suit-able for injection molding and extrusion.Sulfone polymers,being thermoplast
3、ic,are reprocessable and recyclable.Thisclassification system allows for the use of reprocessed orrecycled sulfone polymer materials.1.2 The properties included in this standard are thoserequired to identify the compositions covered.Other require-ments necessary to identify particular characteristic
4、s importantto specialized applications are to be specified by using thesuffixes in Section 5.See Guide D5740.1.3 This classification system and subsequent line callout(specification)are intended to provide a means of calling outsulfone plastics used in the fabrication of end items or parts.Itis not
5、intended for the selection of materials.Material selectioncan be made by those having expertise in the plastics field onlyafter careful consideration of the design and the performancerequired of the part,the environment to which it will beexposed,the fabrication process to be employed,the costsinvol
6、ved,and the inherent properties of the material other thanthose covered by this standard.1.4 The following safety hazards caveat pertains only to thetest method portion,Section 11,of this classification system:This standard does not purport to address all of the safetyconcerns,if any,associated with
7、 its use.It is the responsibilityof the user of this standard to establish appropriate safety,health,and environmental practices and determine the appli-cability of regulatory limitations prior to use.NOTE1Reference Guide D7209 for information and definitionsrelated to recycled plastics.NOTE2ISO 240
8、25 is similar in subject matter but not equivalent tothis standard.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mend
9、ations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.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
10、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 P
11、lastics by DisplacementD883 Terminology Relating to PlasticsD1238 Test Method for Melt Flow Rates of Thermoplasticsby Extrusion PlastometerD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD3641 Practice for Injection Molding Test Specimens ofThermoplastic Molding and Extrusion MaterialsD3
12、801 Test Method for Measuring the Comparative BurningCharacteristics of Solid Plastics in a Vertical PositionD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic Materi-alsD5630 Test Method for Ash Content in PlasticsD5740 Guide for Writing Material Stan
13、dards in the Classi-fication Format1This classification system is under the jurisdiction ofASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved May 1,2021.Published May 2021.Originallyapproved in 1999.Last previous e
14、dition approved in 2021 as D6394-21.DOI:10.1520/D6394-21A.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 Summa
15、ry 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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in th
16、e Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1D6869 Test Method for Coulometric and Volumetric Deter-mination of Moisture in Plastics Using the Karl FischerReaction(the Reaction of Iodine with Water)D7209 Guide for Waste Reduction,Resource Recovery,andUse of Recycled Polymeric Materials and Products(With-drawn 2015)3E29 Practice for Using Significant Digits in Tes
