1、Designation: D 5927 09Standard Classification System forThermoplastic Polyester (TPES) Injection and ExtrusionMaterials Based on ISO Test Methods1This standard is issued under the fixed designation D 5927; the number immediately following the designation indicates the year oforiginal adoption or, in
2、 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 specification is intended to provide a callout system for thermoplast
3、ic polyestermaterials based on ISO test methods.1. Scope*1.1 This specification covers thermoplastic polyester mate-rials suitable for molding or extrusion.1.2 This specification allows for the use of recycled ther-moplastic polyester materials provided that the requirements asstated in this specifi
4、cation 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 included in this specification are thoserequired to identify the compositions covered. There may beother requir
5、ements necessary to identify particular character-istics important to specialized applications. These may bespecified by using the suffixes as given in Section 5.1.4 This classification system and subsequent line callout(specification) are intended to provide a means of calling outplastic materials
6、used in the fabrication of end items or parts.It is not intended for the selection of materials. Materialselection should be made by those having expertise in theplastic field after careful consideration of the design andperformance required of the part, the environment to which itwill be exposed, t
7、he fabrication process to be used, the costsinvolved, and the inherent properties of the material other thanthose covered by this specification.1.5 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.6 The following hazards cavea
8、t 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 userof this standard to establish appropriate safety and healthpractices and determine
9、 the applicability of regulatory limita-tions prior to use.NOTE 1This specification is similar to ISO 7792-1:1995 andISO 7792-2:1988, although the technical content is significantly different.2. Referenced Documents2.1 ASTM Standards:2D 883 Terminology Relating to PlasticsD 1600 Terminology for Abbr
10、eviated Terms Relating toPlasticsD 3892 Practice for Packaging/Packing of PlasticsD 4000 Classification System for Specifying Plastic Mate-rialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 IEC and ISO Standards:3IEC 112 Recommended Method for
11、Determining the Com-parative Tracking Index of Solid Insulation MaterialsIEC 243 Recommended Methods of Test for ElectricalStrength of Solid Insulating Materials at Power Frequen-ciesISO 62 PlasticsDetermination of Water AbsorptionISO 75-1:1993 PlasticsDetermination of Temperature ofDeflection Under
12、 LoadPart 1: General Test MethodsISO 75-2:1993 PlasticsDetermination of Temperature ofDeflection Under LoadPart 2: Plastics and EboniteISO 179-1:1993 PlasticsDetermination of Charpy ImpactStrengthISO 291:1997 PlasticsStandard Atmospheres for Condi-tioning and Testing1This specification is under the
13、jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Feb. 1, 2009. Published February 2009. Originallyapproved in 1996. Last previous edition approved in 2003 as D 5927 03.2For referenced ASTM standar
14、ds, 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, N
15、ew York, NY 10036, http:/www.ansi.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ISO 294-1:1996 PlasticsInjection Moulding of TestSpecimens of Thermoplastic Mater
16、ialsPart 1: GeneralPrinciples, Multipurpose-Test Specimens (ISO MouldType A) and Bars (ISO Mould Type B)ISO 527-1:1993 PlasticsDetermination of TensilePropertiesPart 1: General PrinciplesISO 527-2:1993 PlasticsDetermination of TensilePropertiesPart 2: Testing ConditionsISO 604 PlasticsDetermination
17、of Compressive Proper-tiesISO 1133:1997 PlasticsDetermination of the Melt Mass-Flow Rate (MFR) and the Melt Volume-Flow Rate (MVR)of ThermoplasticsISO 1183:1987 PlasticsMethods for Determining theDensity and Relative Density of Non-Cellular PlasticsISO 3451-4 PlasticsDetermination of AshPart 2: Poly
18、-alkylene TerephthalatesISO 7792-1:1995 PlasticsSaturated Polyester (SP) Moul-ding and Extrusion MaterialsPart 1: Designation Sys-tem and Basis for SpecificationISO 7792-2:1988 PlasticsPolyalkylene TerephthalatesPart 2: Preparation of Test Specimens and Determinationof Properties2.3 Underwriters Lab
19、oratories (UL):4UL 94 Test for Flammability of Plastic Materials for Partsin Devices 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
20、 in this specificationis in accordance with Terminologies D 883 and D 1600.4. 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 2A
21、n example of this classification system is as follows. Thedesignation TPES 0113 would indicate:TPES = thermoplastic polyester as found in Terminology D 1600,01 (group) = PBT,1 (class) = general purpose, and3 (grade) = requirements given in Table TPES.4.1.1 Grades of reinforced or filled versions, or
22、 both, of thebasic materials are identified 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, specif
23、ies a material with a nominal glasslevel of 35 %. The reinforcement letter designations andassociated tolerance levels are shown as tabulated as follows:Symbol Material ToleranceC carbon- and graphite-fiber-reinforced62%G glass-reinforced 62%L lubricants (such as PTFE,graphite, silicone, and mo-lybd
24、enum disulfide)depends on material and pro-cessto be specifiedM mineral-reinforced 62%R combinations of reinforce-ments or fillers, or both63%NOTE 3An example of this classification system for reinforcedthermoplastic polyester is given as follows. The designation TPES021G30 indicates the following:T
25、PES = thermoplastic polyester as found in TerminologyD 1600,02 (group) = 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
26、modified basematerial. The types and percentages of reinforcements and fillers shouldbe shown on the suppliers technical data sheet unless they are proprietaryin nature. If necessary, additional callout of these reinforcements andadditives can be accomplished by use of the suffix part of the system
27、(seeSection 5).NOTE 5Materials containing reinforcements or fillers, or both, atnominal levels not in multiples 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 ma
28、terials may bedetermined using ISO 3451-4.4.2 Variations of thermoplastic polyester materials that arenot included 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 propert
29、y requirements.4.2.1 Specific requirements for variations of thermoplasticpolyester materials shall be indicated by a six-character desig-nator. The designation will consist of the letter “A” or “B” andthe five digits comprising the cell numbers for the propertyrequirements in the order as they appe
30、ar in Table A or B.4.2.1.1 Although the values listed are necessary to includethe range of properties available in existing material, usersshould not infer that every possible combination of theproperties exists or can be obtained.4.2.2 When the grade of the basic material is not known oris not impo
31、rtant, 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 follows. The designation TPES0310G30A22450 would indicate the following material requirementsfrom Table A:TPES
32、0310 = 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, min,4 = Charpy impact, 6.0 kJ/m2, min,5 = deflection temperature, 185C, at 1.8 MPa, min,and0 = unspecified
33、.If no properties are specified, the designation would be TPES0310G30A00000.4Available from Underwriters Laboratories (UL), 333 Pfingsten Rd., North-brook, IL 60062-2096, http:/.5Available from National Technical Information Service (NTIS), 5285 PortRoyal Rd., Springfield, VA 22161, http:/www.ntis.g
34、ov.D5927092TABLE A Detailed Requirements:AReinforced or Filled Thermoplastic PolyestersDesignationOrderNumberPropertyCell Limits0 123456 7 8 91 Tensile strength, ISO527-1:1993 and ISO527-2:1993, min, MPaBunspecified 35 50 70 95 115 140 175 210 specify valueC2 Tensile modulus, ISO 527-1:1993and ISO 5
35、27-2:1993,min, MPaDunspecified 1 400 2 700 4 100 5 500 6 900 8 000 10 000 12 500 specify valueC3 Charpy impact, ISO 179:1993,min, kJ/m2Eunspecified 1.5 3.0 4.5 6.0 8.5 11.0 13.5 17.5 specify valueC4 Deflection temperature underload at 1.8 MPa, ISO75-1:1993 and ISO75-2:1993, min, CFunspecified 50 100
36、 120 150 185 205 220 235 specify valueC5 To be determined . . . . . . . . . .AIt is recognized that detailed test values, particularly Charpy impact, may not predict nor even correlate with the performance of parts molded of these materials.BTensile strength shall be determined using a Type 1A tensi
37、le specimen as described in ISO 527-2:1993. Crosshead speed shall be 5 mm/min6 20 %.CIf a specific value is required, it must appear on the drawing or contract, or both.DTensile modulus shall be determined using a Type 1A tensile specimen as described in ISO 527-2:1993 at a test speed of 1 mm/min 6
38、20 %.EThe test specimen shall be 80 6 2by106 0.2by46 0.2 mm, cut from the center of the Type 1A tensile specimen and tested as described in ISO 179:1993, Method1eA.FThe test specimen size shall be 80 6 2by106 0.2by46 0.2 mm, cut from the center of the Type 1A tensile specimen. The requirements are b
39、ased on unannealedtest specimens.TABLE B Detailed Requirements:ASpecial Thermoplastic PolyestersDesignationOrderNumberPropertyCell Limits0 12345678 91 Tensile strength, ISO 527-1:1993 and ISO527-2:1993, min, MPaBunspecified 10 30 35 40 45 50 60 80 specify valueC2 Tensile modulus, ISO 527-1:1993 and
40、ISO527-2:1993, min, MPaDunspecified 100 350 1000 1500 2000 2500 3000 4000 specify valueC3 Charpy impact, ISO 179:1993, min, kJ/m2Eunspecified 2.0 3.5 5.0 8.0 13.0 18.0 25.0 50.0 specify valueC4 Deflection temperature under load at 1.8 MPa,ISO 75-1:1993 and ISO 75-2:1993, min, CFunspecified 30 45 60
41、70 80 90 100 115 specify valueC5 To be determined . . . . . . . . . .AIt is recognized that detailed test values, particularly Charpy impact, may not predict nor even correlate with the performance of parts molded of these materials.BTensile strength shall be determined using a Type 1A tensile speci
42、men as described in ISO 527-2:1993. Crosshead speed shall be 50 mm/min6 10 %.CIf a specific value is required, it must appear on the drawing or contract, or both.DTensile modulus shall be determined using a Type 1A tensile specimen as described in ISO 527-2:1993 at a test speed of 1 mm/min 6 20 %.ET
43、he test specimen shall be 80 6 2by106 0.2by46 0.2 mm, cut from the center of the Type 1A tensile specimen and tested as described in ISO 179:1993, Method1eA.FThe test specimen size shall be 80 6 2by106 0.2by46 0.2 mm, cut from the center of the Type 1A tensile specimen. The requirements are based on
44、 unannealedtest specimens.TABLE 1 Recommended Processing ConditionsMaterialMelt Temperature,CMold Temperature,CAverage Injection Veloc-ity, mm/sHold Pressure Time,sTotal Cycle Time,sPBT, unfilled semicrystalline 260 6 3806 5 200 6 100 20 6 5406 5PBT, filled semicrystalline 260 6 6 5 200 6 100 20 6 6
45、 5PET, unfilled amorphous 285 6 326 5 200 6 100 20 6 6 5PET, unfilled semicrystalline 275 6 3 135 6 5 2006 100 20 6 5406 5PET, filled semicrystalline 285 6 3 135 6 5 2006 100 20 6 6 5PET, filled semicrystalline, nucleated 285 6 31106 5 2006 100 20 6 6 5PET, filled semicrystalline, flame-retarded 275
46、6 3 135 6 5 2006 100 20 6 5406 5PET, filled semicrystalline, flame-retarded,nucleated275 6 6 5 2006 100 20 6 6 5PCT, unfilled amorphous 300 6 3206 3 200 6 100 20 6 5406 5PCT, unfilled semicrystalline 300 6 3 120 6 5 2006 100 20 6 6 5PCT, filled semicrystalline 300 6 3 120 6 5 2006 100 20 6 6 5PEN, u
47、nfilled amorphous 300 6 3206 3 200 6 100 20 6 5406 5D59270934.3 Table B has been incorporated into this specification tofacilitate the classification of special materials for which TableTPES or Table A do not reflect the required properties. Table Bshall be used in the same manner as Table A.NOTE 8T
48、he mechanical properties of pigmented or colored thermo-plastic polyester materials can differ from the mechanical properties ofnatural thermoplastic polyester material, depending on the choice ofcolorants and the concentration. The main property affected is ductility, asillustrated by a reduction i
49、n Izod impact strength and tensile elongationvalues. If specific properties of pigmented thermoplastic polyester mate-rials are necessary, prior testing between the materials supplier and enduser should be initiated. Once these agreements are reached, a classifica-tion using Table B should be used to ensure proper property compliance.NOTE 9An example of a special material using this classificationsystem is as follows. The designation TPES0210B54220 would indicatethe following material requirements from Table B:TPES0210 = PET, unmod
