1、Designation: D5927 14Standard Classification System for andBasis for Specifications forThermoplastic Polyester (TPES) Injection and ExtrusionMaterials Based on ISO Test Methods1This standard is issued under the fixed designation D5927; the number immediately following the designation indicates the y
2、ear 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 material classification system is intended to pr
3、ovide a callout system for thermoplasticpolyester materials based on ISO test methods.1. Scope*1.1 This classification system covers thermoplastic polyes-ter materials suitable for molding or extrusion.1.2 This classification system allows for the use of recycledthermoplastic polyester materials pro
4、vided that the require-ments as stated in this classification system and subsequent linecallout (specification) are met. The proportions of recycledmaterial used, as well as the nature and amount of anycontaminant, however, cannot be covered practically in thisspecification.1.3 The properties includ
5、ed 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 by using thesuffixes as given in Section 5.1.4 This classification system and subsequent line call
6、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 can be made by those having expertise in the plasticfield only after careful consideration of the desi
7、gn and perfor-mance required of the part, the environment to which it will beexposed, the fabrication process to be used, the costs involved,and the inherent properties of the material other than thosecovered by this specification.1.5 The values stated in SI units are to be regarded as thestandard.
8、The values given in parentheses are for informationonly.1.6 The following hazards caveat pertains only to the testmethods portion, Section 11, of this specification: This stan-dard does not purport to address all of the safety concerns, ifany, associated with its use. It is the responsibility of the
9、 userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.NOTE 1This standard and ISO 7792-1:2012 and ISO 7792-2:2012address the same subject matter, but differ in technical content.2. Referenced Documents2.1 AST
10、M Standards:2D883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic Materi-alsD7209 Guide for Waste Reduction, Resource Recovery, andUse of Recycled Polymeric
11、Materials and ProductsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 IEC and ISO Standards:3IEC 112 Recommended Method for Determining the Com-parative Tracking Index of Solid Insulation MaterialsIEC 243 Recommended Methods of Test for Electrica
12、lStrength of Solid Insulating Materials at Power Frequen-ciesISO 62 PlasticsDetermination of Water Absorption1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Dec.
13、1, 2014. Published December 2014. Originallyapproved in 1996. Last previous edition approved in 2009 as D5927 09. DOI:10.1520/D5927-14.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume inf
14、ormation, 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
15、Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1ISO 75-1:2013 PlasticsDetermination of Temperature ofDeflection Under LoadPart 1: General Test MethodsISO 75-2:2013 PlasticsDetermination of Temperature ofDeflection Under LoadPart 2: Plastics and EboniteISO 179-1:2010 P
16、lasticsDetermination of Charpy ImpactStrengthISO 291:2008 PlasticsStandard Atmospheres for Condi-tioning and TestingISO 294-1:1996 PlasticsInjection Moulding of Test Speci-mens of Thermoplastic MaterialsPart 1: GeneralPrinciples, Multipurpose-Test Specimens (ISO MouldType A) and Bars (ISO Mould Type
17、 B)ISO 527-1:2012 PlasticsDetermination of TensilePropertiesPart 1: General PrinciplesISO 527-2:2012 PlasticsDetermination of TensilePropertiesPart 2: Testing ConditionsISO 604 PlasticsDetermination of Compressive PropertiesISO 1133-2:2011 PlasticsDetermination of the Melt Mass-Flow Rate (MFR) and t
18、he Melt Volume-Flow Rate (MVR)of ThermoplasticsPart 2: Method for Materials Sensi-tive to Time-Temperature History and/or MoistureISO 1183-1:2012 PlasticsMethods for Determining theDensity of Non-Cellular PlasticsPart 1: ImmersionMethod, Liquid Pyknometer Method, and TitrationMethodISO 1183-2:2012 P
19、lasticsMethods for Determining theDensity of Non-Cellular PlasticsPart 2: Density Gradi-ent Column MethodISO 1183-3:2012 PlasticsMethods for Determining theDensity of Non-Cellular PlasticsPart 3: Gas Pyknom-eter MethodISO 3451-2 PlasticsDetermination of AshPart 2: Poly-alkylene TerephthalatesISO 779
20、2-1:2012 PlasticsSaturated Polyester (SP) Mould-ing and Extrusion MaterialsPart 1: Designation Systemand Basis for SpecificationISO 7792-2:2012 PlasticsPolyalkylene TerephthalatesPart 2: Preparation of Test Specimens and Determinationof Properties2.3 Underwriters Laboratories (UL):4UL 94 Test for Fl
21、ammability of Plastic Materials for Parts inDevices and Appliances2.4 National Technical Information Service (NTIS):5AD297457 Procedure and Analytical Method for Determin-ing Toxic Gases Produced by Synthetic Compounds3. Terminology3.1 DefinitionsThe terminology used in this specificationis in accor
22、dance with Terminologies D883 and D1600.4. Classification4.1 Thermoplastic polyester materials are classified intogroups according to their composition. These groups aresubdivided into classes and grades, as indicated in the basicproperty table (Table TPES).NOTE 2An example of this classification sy
23、stem is as follows. Thedesignation TPES 0113 would indicate:TPES = thermoplastic polyester as found in TerminologyD1600,01 (group) = PBT,1 (class) = general purpose, and3 (grade) = requirements given in Table TPES.4.1.1 Grades of reinforced or filled versions, or both, of thebasic materials are iden
24、tified by a single letter that indicates thereinforcement or filler used and two digits, in multiples of five,that indicate the nominal quantity in percent by weight. Thus,a letter designation G for glass reinforced and 35 for percent orreinforcement, G35, specifies a material with a nominal glassle
25、vel of 35 %. The reinforcement letter designations andassociated tolerance levels are shown as tabulated as follows:TABLE Reinforcement-FillerASymbolsBand TolerancesSymbol Material ToleranceC Carbon and graphite 2 %EClay 2%G Glass 2 %K Calcium carbonate 2 %L Lubricants (such as PTFE,graphite, silico
26、ne, andmolybdenum disulfide)depends on material andprocessto be specifiedM Mineral 2 %PMica 2%R Combinations of reinforcementsand/or fillers3 %S Synthetic organic 2 %T Talcum 2 %X Not specified To be specifiedAAsh content of filled and/or reinforced materials can be determined using ISO3451-2 where
27、applicable.BAdditional symbols can be added to this table as required.NOTE 3An example of this classification system for reinforcedthermoplastic polyester is given as follows. The designation TPES021G30 indicates the following:TPES = thermoplastic polyester as found in TerminologyD1600,02 (group) =
28、PET,1 (class) = unmodified, andG30 (grade) = nominal 30 % glass with the requirements given inTable TPES.NOTE 4This part of the classification system uses the percent ofreinforcements or fillers, or both, in the callout of the modified basematerial. The types and percentages of reinforcements and fi
29、llers aresometimes shown on the suppliers technical data sheet. If necessary,additional callout of these reinforcements and additives can be accom-plished by use of the suffix part of the system (see Section 5).NOTE 5Materials containing reinforcements or fillers, or both, atnominal levels not in mu
30、ltiples of five are included in the nearest TPESdesignation. For example, a material with a nominal glass content of 28 %is included with Grade G30.NOTE 6The ash content of filled or reinforced materials is determinedusing ISO 3451-4.4.2 Variations of thermoplastic polyester materials that arenot in
31、cluded in Table TPES are classified in accordance withTable TPES and Table A or B. Table TPES is used to specifythe group of thermoplastic polyester, and Table A or B is usedto specify property requirements.4.2.1 Specific requirements for variations of thermoplasticpolyester materials shall be indic
32、ated by a six-character desig-nator. The designation will consist of the letter “A” or “B” and4Available from Underwriters Laboratories (UL), 333 Pfingsten Rd.,Northbrook, IL 60062-2096, http:/.5Available from National Technical Information Service (NTIS), 5285 PortRoyal Rd., Springfield, VA 22161,
33、http:/www.ntis.gov.D5927 142the five digits comprising the cell numbers for the propertyrequirements in the order as they appear in Table A or B.4.2.1.1 Although the values listed are necessary to includethe range of properties available in existing material, not everypossible combination of the pro
34、perties exists or can be ob-tained.4.2.2 When the grade of the basic material is not known oris not important, the use of “0” grade classification shall beused for materials in this system (see Note 7).NOTE 7An example of a reinforced thermoplastic polyester of thisclassification system is as follow
35、s. The designation TPES0310G30A22450 would indicate the following material requirementsfrom Table A:TABLE A Detailed Requirements:AReinforced or Filled Thermoplastic PolyestersDesignationOrderNumberPropertyCell Limits0 12345678 91 Tensile strength, ISO 527-1:2012and ISO527-2:2012, min, MPaBunspecifi
36、ed 35 50 70 95 115 140 175 210 specify valueC2 Tensile modulus, ISO 527-1:2012and ISO 527-2:2012,min, MPaDunspecified 1 400 2 700 4 100 5 500 6 900 8 000 10 000 12 500 specify valueC3 Charpy impact, ISO 179-1:2010,min, kJ/m2Eunspecified 1.5 3.0 4.5 6.0 8.5 11.0 13.5 17.5 specify valueC4 Deflection t
37、emperature underload at 1.8 MPa, ISO75-1:2013 and ISO75-2:2013, min, CFunspecified 50 100 120 150 185 205 220 235 specify valueC5 To be determined . . . . . . . . . .AIt is recognized that detailed test values, particularly Charpy impact, do not necessarily predict nor even correlate with the perfor
38、mance of parts molded of these materials.BTensile strength shall be determined using a Type 1A tensile specimen as described in ISO 527-2:2012. Crosshead speed shall be 5 mm/min 20 %.CIf a specific value is required, it must appear on the drawing or contract, or both.DTensile modulus shall be determ
39、ined using a Type 1A tensile specimen as described in ISO 527-2:2012 at a test speed of 1 mm/min 20 %.EThe test specimen shall be 80 2 by 10 0.2 by 4 0.2 mm, cut from the center of the Type 1A tensile specimen and tested as described in ISO 179:2010, Method1eA.FThe test specimen size shall be 802by1
40、00.2by40.2mm,cutfromthecenter of the Type 1A tensile specimen. The requirements are based on unannealedtest specimens.TABLE B Detailed Requirements:ASpecial Thermoplastic PolyestersDesignationOrderNumberPropertyCell Limits0 12345678 91 Tensile strength, ISO 527-1:2012 and ISO527-2:2012, min, MPaBuns
41、pecified 10 30 35 40 45 50 60 80 specify valueC2 Tensile modulus, ISO 527-1:2012 and ISO527-2:2012, min, MPaDunspecified 100 350 1000 1500 2000 2500 3000 4000 specify valueC3 Charpy impact, ISO 179:2010, min, kJ/m2Eunspecified 2.0 3.5 5.0 8.0 13.0 18.0 25.0 50.0 specify valueC4 Deflection temperatur
42、e under load at 1.8MPa,ISO 75-1:2013 and ISO 75-2:2013, min,CFunspecified 30 45 60 70 80 90 100 115 specify valueC5 To be determined . . . . . . . . . .AIt is recognized that detailed test values, particularly Charpy impact, do not necessarily predict nor even correlate with the performance of parts
43、 molded of these materials.BTensile strength shall be determined using a Type 1A tensile specimen as described in ISO 527-2:2012. Crosshead speed shall be 50 mm/min 10 %.CIf a specific value is required, it must appear on the drawing or contract, or both.DTensile modulus shall be determined using a
44、Type 1A tensile specimen as described in ISO 527-2:2012 at a test speed of 1 mm/min 20 %.EThe test specimen shall be 802by100.2by40.2mm,cutfromthecenter of the Type 1A tensile specimen and tested as described in ISO 179:2010, Method1eA.FThe test specimen size shall be 802by100.2by40.2mm,cutfromthece
45、nter of the Type 1A tensile specimen. The requirements are based on unannealed testspecimens.D5927 143TPES0310 = PET copolymer, from Table TPES,G30 = glass-reinforced at 30 % nominal glass content,A = Table A for property requirements,2 = tensile strength, 50 MPa, min,2 = tensile modulus, 2700 MPa,
46、min,4 = Charpy impact, 6.0 kJ/m2, min,5 = deflection temperature, 185C, at 1.8 MPa, min,and0 = unspecified.If no properties are specified, the designation would be TPES0310G30A00000.4.3 Table B has been incorporated into this specification tofacilitate the classification of special materials for whi
47、ch TableTPES or Table A do not reflect the required properties. Table Bshall be used in the same manner as Table A.NOTE 8The mechanical properties of pigmented or colored thermo-plastic polyester materials can differ from the mechanical properties ofnatural thermoplastic polyester material, dependin
48、g on the choice ofcolorants and the concentration, thus requiring the use of Table A or B asappropriate to specify the material.NOTE 9An example of a special material using this classificationsystem is as follows. The designation TPES0210B54220 would indicatethe following material requirements from
49、Table B:TPES0210 = PET, unmodified, from Table TPES,B = Table B for property requirements,5 = tensile strength, 45 MPa, min,4 = tensile modulus, 1500 MPa, min,2 = Charpy impact, 3.5 kJ/m2, min,2 = deflection temperature, 45C, at 1.8 MPa, min,and0 = unspecified.TABLE TPES Detail Requirements for Thermoplastic PolyestersAGroup Description Class Description Grade DescriptionBFlow Rate,ISO1133-2:2011,g/10 minDensity,ISO1183-1/-2/-3:2012,g/cm3TensileStrength, ISO527-1:2012and ISO527-2:2012,Cmin,MPaTe
