1、Designation: D5927 14D5927 17Standard 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 indicat
2、es 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.INTRODUCTIONThis material classification system is intend
3、ed to provide a callout system for thermoplasticpolyester materials based on ISO test methods.1. Scope*1.1 This classification system covers thermoplastic polyester materials suitable for molding or extrusion.1.2 This classification system allows for the use of recycled thermoplastic polyester mater
4、ials provided that the requirementsas stated in this classification system and subsequent line callout (specification) are met. The proportions of recycled material used,as well as the nature and amount of any contaminant, however, cannot be covered practically in this specification.1.3 The properti
5、es included in this standard are those required to identify the compositions covered. Other requirementsnecessary to identify particular characteristics important to specialized applications are to be specified by using the suffixes as givenin Section 5.1.4 This classification system and subsequent
6、line callout (specification) are intended to provide a means of calling out plasticmaterials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection can bemade by those having expertise in the plastic field only after careful consideration
7、 of the design and performance required of thepart, the environment to which it will be exposed, the fabrication process to be used, the costs involved, and the inherent propertiesof the material other than those covered by this specification.1.5 The values stated in SI units are to be regarded as t
8、he standard. The values given in parentheses are for information only.1.6 The following hazards caveat pertains only to the test methods portion, Section 11, of this specification: This standard doesnot purport to address all of the safety concerns, if any, associated with its use. It is the respons
9、ibility of the user of this standardto establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.NOTE 1This standard and ISO 7792-1:2012 and ISO 7792-2:2012 address the same subject matter, but differ in technical content.2. Referenced D
10、ocuments2.1 ASTM Standards:2D883 Terminology Relating to PlasticsD1600 Terminology for Abbreviated Terms Relating to PlasticsD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic MaterialsD7209 Guide for Waste Reduction, Resource Recovery, and Use of Recy
11、cled Polymeric Materials and Products (Withdrawn2015)3E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications1 This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermop
12、lastic Materials.Current edition approved Dec. 1, 2014March 1, 2017. Published December 2014March 2017. Originally approved in 1996. Last previous edition approved in 20092014as D5927 09.D5927 14. DOI: 10.1520/D5927-14.10.1520/D5927-17.2 For referencedASTM standards, visit theASTM website, www.astm.
13、org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard a
14、nd is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only
15、 the current versionof the standard as published by ASTM is to be considered the official document.*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 States12.2 IEC and ISO Standa
16、rds:4IEC 112 Recommended Method for Determining the Comparative Tracking Index of Solid Insulation MaterialsIEC 243 Recommended Methods of Test for Electrical Strength of Solid Insulating Materials at Power FrequenciesISO 62 PlasticsDetermination of Water AbsorptionISO 75-1:2013 PlasticsDeterminatio
17、n of Temperature of Deflection Under LoadPart 1: General Test MethodsISO 75-2:2013 PlasticsDetermination of Temperature of Deflection Under LoadPart 2: Plastics and EboniteISO 179-1:2010 PlasticsDetermination of Charpy Impact StrengthISO 291:2008 PlasticsStandard Atmospheres for Conditioning and Tes
18、tingISO 294-1:1996 PlasticsInjection Moulding of Test Specimens of Thermoplastic MaterialsPart 1: General Principles,Multipurpose-Test Specimens (ISO Mould Type A) and Bars (ISO Mould Type B)ISO 527-1:2012 PlasticsDetermination of Tensile PropertiesPart 1: General PrinciplesISO 527-2:2012 PlasticsDe
19、termination of Tensile PropertiesPart 2: Testing ConditionsISO 604 PlasticsDetermination of Compressive PropertiesISO 1133-2:2011 PlasticsDetermination of the Melt Mass-Flow Rate (MFR) and the Melt Volume-Flow Rate (MVR) ofThermoplasticsPart 2: Method for Materials Sensitive to Time-Temperature Hist
20、ory and/or MoistureISO 1183-1:2012 PlasticsMethods for Determining the Density of Non-Cellular PlasticsPart 1: Immersion Method, LiquidPyknometer Method, and Titration MethodISO 1183-2:2012 PlasticsMethods for Determining the Density of Non-Cellular PlasticsPart 2: Density Gradient ColumnMethodISO 1
21、183-3:2012 PlasticsMethods for Determining the Density of Non-Cellular PlasticsPart 3: Gas Pyknometer MethodISO 3451-2 PlasticsDetermination of AshPart 2: Polyalkylene TerephthalatesISO 7792-1:2012 PlasticsSaturated Polyester (SP) Moulding and Extrusion MaterialsPart 1: Designation System and Basisf
22、or SpecificationISO 7792-2:2012 PlasticsPolyalkylene TerephthalatesPart 2: Preparation of Test Specimens and Determination of Proper-ties2.3 Underwriters Laboratories (UL):5UL 94 Test for Flammability of Plastic Materials for Parts in Devices and Appliances2.4 National Technical Information Service
23、(NTIS):6AD297457 Procedure and Analytical Method for Determining Toxic Gases Produced by Synthetic Compounds3. Terminology3.1 DefinitionsThe terminology used in this specification is in accordance with Terminologies D883 and D1600.4. Classification4.1 Thermoplastic polyester materials are classified
24、 into groups according to their composition. These groups are subdividedinto classes and grades, as indicated in the basic property table (Table TPES).NOTE 2An example of this classification system is as follows. The designation TPES 0113 would indicate:TPES = thermoplastic polyester as found in Ter
25、minologyD1600,01 (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 the basic materials are identified by a single letter that indicates thereinforcement or filler used and two digits, in multiples of
26、five, that indicate the nominal quantity in percent by weight. Thus, aletter designation G for glass reinforced and 35 for percent or reinforcement, G35, specifies a material with a nominal glass levelof 35 %. The reinforcement letter designations and associated tolerance levels are shown as tabulat
27、ed as follows:TABLE Reinforcement-FillerA SymbolsB and TolerancesSymbol Material ToleranceC Carbon and graphite 2 %E Clay 2 %G Glass 2 %K Calcium carbonate 2 %L Lubricants (such as PTFE,graphite, silicone, andmolybdenum disulfide)depends on material andprocessto be specifiedM Mineral 2 %4 Available
28、from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.5 Available from Underwriters Laboratories (UL), 333 Pfingsten Rd., Northbrook, IL 60062-2096, http:/.6 Available from National Technical Information Service (NTIS), 5285 Port Royal R
29、d., Springfield, VA 22161, http:/www.ntis.gov.D5927 172P Mica 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 ISO 3451-2 where applicable.BAdditional symbo
30、ls can be added to this table as required.NOTE 3An example of this classification system for reinforced thermoplastic polyester is given as follows. The designation TPES 021G30 indicatesthe following:TPES = thermoplastic polyester as found in TerminologyD1600,02 (group) = PET,1 (class) = unmodified,
31、 andG30 (grade) = nominal 30 % glass with the requirements given inTable TPES.NOTE 4This part of the classification system uses the percent of reinforcements or fillers, or both, in the callout of the modified base material. Thetypes and percentages of reinforcements and fillers are sometimes shown
32、on the suppliers technical data sheet. If necessary, additional callout of thesereinforcements and additives can be accomplished by use of the suffix part of the system (see Section 5).NOTE 5Materials containing reinforcements or fillers, or both, at nominal levels not in multiples of five are inclu
33、ded in the nearest TPES designation.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 determined using ISO 3451-4.4.2 Variations of thermoplastic polyester materials that are not included in Table TPES a
34、re classified in accordance with TableTPES and Table A or B. Table TPES is used to specify the group of thermoplastic polyester, and Table A or B is used to specifyproperty requirements.4.2.1 Specific requirements for variations of thermoplastic polyester materials shall be indicated by a six-charac
35、ter designator.The designation will consist of the letter “A” or “B” and the five digits comprising the cell numbers for the property requirementsin the order as they appear in Table A or B.4.2.1.1 Although the values listed are necessary to include the range of properties available in existing mate
36、rial, not everypossible combination of the properties exists or can be obtained.4.2.2 When the grade of the basic material is not known or is not important, the use of “0” grade classification shall be usedfor materials in this system (see Note 7).TABLE A Detailed Requirements:A Reinforced or Filled
37、 Thermoplastic PolyestersDesignationOrderNumberPropertyCell Limits0 1 2 3 4 5 6 7 8 91 Tensile strength, ISO 527-1:2012and ISO527-2:2012, min, MPaBunspecified 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
38、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 temperature 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 determin
39、ed . . . . . . . . . .A It is recognized that detailed test values, particularly Charpy impact, do not necessarily predict nor even correlate with the performance of parts molded of these materials.B Tensile strength shall be determined using a Type 1AA1 tensile specimen as described in ISO 527-2:20
40、12. Crosshead speed shall be 5 mm/min 20 %.C If a specific value is required, it must appear on the drawing or contract, or both.D Tensile modulus shall be determined using a Type 1AA1 tensile specimen as described in ISO 527-2:2012 at a test speed of 1 mm/min 20 %.E The test specimen shall be 80 2
41、by 10 0.2 by 4 0.2 mm, cut from the center of the Type 1AA1 tensile specimen and tested as described in ISO 179:2010, Method1eA.F The test specimen size shall be 80 2 by 10 0.2 by 4 0.2 mm, cut from the center of the Type 1AA1 tensile specimen. The requirements are based on unannealedtest specimens.
42、D5927 173NOTE 7An example of a reinforced thermoplastic polyester of this classification system is as follows. The designation TPES 0310G30A22450 wouldindicate the following material requirements from Table A:TPES0310 = PET copolymer, from Table TPES,G30 = glass-reinforced at 30 % nominal glass cont
43、ent,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.If no properties are specified, the designation would be TPES 0310G30A00000.4.3 Table
44、B has been incorporated into this specification to facilitate the classification of special materials for which Table TPESor Table A do not reflect the required properties. Table B shall be used in the same manner as Table A.NOTE 8The mechanical properties of pigmented or colored thermoplastic polye
45、ster materials can differ from the mechanical properties of naturalthermoplastic polyester material, depending on the choice of colorants and the concentration, thus requiring the use of Table A or B as appropriate tospecify the material.NOTE 9An example of a special material using this classificati
46、on system is as follows. The designation TPES0210B54220 would indicate thefollowing material requirements from Table B:TABLE B Detailed Requirements:A Special Thermoplastic PolyestersDesignationOrderNumberPropertyCell Limits0 1 2 3 4 5 6 7 8 91 Tensile strength, ISO 527-1:2012 and ISO527-2:2012, min
47、, MPaBunspecified 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/m2E unspecified 2.0 3.5 5.0 8.0 13.0 18.0 25.0 50.0 specify valueC4 Deflection
48、temperature 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 performanc
49、e of parts molded of these materials.BTensile strength shall be determined using a Type 1AA1 tensile specimen as described in ISO 527-2:2012. Crosshead speed shall be 50 mm/min 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 Type 1AA1 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
