1、Designation:D 5990 00Standard Classification System forPolyketone Injection Molding and Extrusion Materials(PK)1This standard is issued under the fixed designation D 5990;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of la
2、st revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This classification system covers polyketone materialssuitable for injection molding and extrusion.This classificationsyste
3、m does not address recycled polyketone materials.1.2 The properties included in this classification system arethose required to identify the compositions covered.There maybe other requirements necessary to identify particular charac-teristics important to specialized applications.These will beagreed
4、 upon between the user and the supplier.1.3 This classification system and subsequent line call out(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 should b
5、e made by those having expertise in theplastic field 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 cover
6、ed by this classification system.1.4 The following precautionary 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 its use.It is the responsibilityof the user of this stan
7、dard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.NOTE1There is no similar or equivalent ISO standard available.2.Referenced Documents2.1 ASTM Standards:D 256 Test Method for Determining the Pendulum ImpactResistance of Not
8、ched Specimens of Plastics2D 618 Practice for Conditioning Plastics and ElectricalInsulating Materials for Testing2D 638 Test Method for Tensile Properties of Plastics2D 648 Test Method for Deflection Temperature of PlasticsUnder Flexural Load2D 790 Test Methods for Flexural Properties of Unreinforc
9、edand Reinforced Plastics and Electrical Insulating Materi-als2D 792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by Displacement2D 883 Terminology Relating to Plastics2D 1238 Test Method for Flow Rates of Thermoplastics byExtrusion Plastometer2D 1600 Terminology for A
10、bbreviated Terms Relating toPlastics2D 3418 Test Method for Transition Temperatures of Poly-mers by Thermal Analysis3D 3641 Practice for Injection Molding Test Specimens ofThermoplastic Molding and Extrusion Materials3D 3892 Practice for Packaging/Packing of Plastics3D 4000 Classification System for
11、 Specifying Plastic Mate-rials3D 5630 Test Method for Ash Content in Thermoplastics4E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications53.Terminology3.1 Except for the term defined as follows,the terminologyused in this classification system is in acco
12、rdance with Termi-nologies D 883 and D 1600.3.2 Definition:3.2.1 polyketone(PK),na linear alternating polymer ofcarbon monoxide and at least one ethylenically unsaturatedhydrocarbon.4.Classification4.1 Unreinforced polyketone materials are classified intogroups according to their composition.These g
13、roups aresubdivided into classes and grades as shown in Table PK.NOTE2An example of this classification system is given as follows.The designation PK0112 indicates the following:PK=Polyketone as found in Terminology D 1600,01=Ethylene-propylene copolymer(group),1=General purpose(class),and2=Requirem
14、ents given in Table PK(grade).1This classification system is under the jurisdiction ofASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved July 10,2000.Published October 2000.Originallypublished as D 5990 96.Last pre
15、vious edition D 5990 99.2Annual Book of ASTM Standards,Vol 08.01.3Annual Book of ASTM Standards,Vol 08.02.4Annual Book of ASTM Standards,Vol 08.03.5Annual Book of ASTM Standards,Vol 14.02.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International,100 Barr Harbor
16、Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.4.1.1 To facilitate incorporation of future or special materi-als the“other”category for group(00),class(0),and grade(0)is shown in Table PK.The basic properties of these materialscan be obtained from Table A as they apply.4.2 Reinforced,filled,and lubricated versions of polyketonematerials that are not in Table PK are classified in accordancewith Tables PK andA.Table PK is used to specify the group ofpolyketone materials and Table