1、Designation: D6835 08 (Reapproved 2014)D6835 17Standard Classification System forThermoplastic Elastomer-Ether-Ester Molding and ExtrusionMaterials (TEEE)1This standard is issued under the fixed designation D6835; the number immediately following the designation indicates the year oforiginal adoptio
2、n 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.1. Scope Scope*1.1 This classification system covers segmented block copolyether-ester
3、elastomers suitable for molding and extrusion.1.2 This classification system allows for the use of segmented block copolyether-ester elastomers that are recycled provided thatthe requirements as stated in this classification system are met. The proportions of recycled material used, as well as the n
4、atureand amount of any contaminant, however, cannot be covered practically in this specification.1.3 The properties included in this classification system are those required to identify the compositions covered. It is possiblethat there are other requirements necessary to identify particular charact
5、eristics important to specialized applications. One way ofspecifying them is 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 out plasticmaterials used in the fabrication of end items or
6、parts. It is not intended for the selection of materials. Material selection is bestmade by those having expertise in the plastic field after careful consideration of the design and the performance required of thepart, the environment to which it will be exposed, the fabrication process to be employ
7、ed, the costs involved, and the inherentproperties of the material other than those covered by this classification system.1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.6 The following precautionary caveat pertains only
8、 to the test methods portion, Section 11, of this classification system. Thisstandard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and health practices and determine the a
9、pplicability of regulatory limitations priorto use.NOTE 1This standard, ISO 14910-1, and ISO 14910-2 address the same subject matter, but differ in technical content.1.7 This international standard was developed in accordance with internationally recognized principles on standardizationestablished i
10、n the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD883 Terminology Rel
11、ating to PlasticsD1600 Terminology for Abbreviated Terms Relating to PlasticsD2240 Test Method for Rubber PropertyDurometer HardnessD3418 Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by DifferentialScanning CalorimetryD3641 Practice for Injection M
12、olding Test Specimens of Thermoplastic Molding and Extrusion MaterialsD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications1 This classification s
13、ystem is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved March 1, 2014Aug. 1, 2017. Published March 2014August 2017. Originally approved in 2002. Last previous edition approved in 2008
14、2014 asD6835 - 08.D6835 - 08 (2014). DOI: 10.1520/D6835-08R14.10.1520/D6835-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on
15、 the ASTM website.This document is not an ASTM standard and 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
16、 consult prior editions as appropriate. In all cases only 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 Conshoho
17、cken, PA 19428-2959. United States12.2 ISO Standards:3ISO 178 Plastics-DeterminationPlasticsDetermination of Flexural PropertiesISO 294-1 Plastics-InjectionPlasticsInjection Moulding of Test Specimens of Thermoplastic Materials-Part 1: GeneralPrinciples and Moulding of Multipurpose and Bar Test Spec
18、imensISO 527-1 Plastics-DeterminationPlasticsDetermination of Tensile Properties-Part 1: General PrinciplesISO 527-2 Plastics-DeterminationPlasticsDetermination of Tensile Properties-Part 2: Test Conditions for Moulding andExtrusion PlasticsISO 868 Plastics and Ebonite-DeterminationEboniteDeterminat
19、ion of Indentation Hardness by Means of a Durometer (ShoreHardness)ISO 1133 Plastics-DeterminationPlasticsDetermination of the Melt Mass-Flow Rate (MFR) and the Melt VolumeFlow Rate(MVR) of ThermoplasticsISO 11357-3 AMD 1 Plastics-DifferentialPlasticsDifferential Scanning Calorimetry (DSC)-Part 3: D
20、etermination of Tem-perature and Enthalpy of Melting and CrystallizationISO 14910-1 Plastics-ThermoplasticPlasticsThermoplastic Polyester/ester and Polyether/ester Elastomers for Moulding andExtrusion-Part 1: Designation System and Basis for SpecificationsISO 14910-2 Plastics-ThermoplasticPlasticsTh
21、ermoplastic Polyester/ester and Polyether/ester Elastomers for Moulding andExtrusion-Part 2: Preparation of Test Specimens and Determination of PropertiesISO 20753 PlasticsTest Specimens3. Terminology3.1 DefinitionsThe terminology used in this classification system is in accordance with Terminologie
22、s D883 and D1600.4. Classification4.1 Polyether-ester elastomers are classified into groups in accordance with flexural modulus. These groups are subdivided intoclasses by viscosity range (flow rate) and are further subdivided into grades by tensile properties, as shown in the basic propertytable (T
23、able TEEE).NOTE 2AN EXAMPLE OF THIS CLASSIFICATION SYSTEM IS GIVEN AS FOLLOWS: THE DESIGNATION TEEE0311 INDICATES THE FOLLOWING:TEEE = polyether-ester elastomer03 (group) = flexural modulus from 125 to 325 MPa1 (class) = flow rate from 2 to 12 g/10 min1 (grade) = property requirements as given in Ta
24、ble TEEE4.1.1 To facilitate the incorporation of future or special materials, the other category for group (00), class (0), and grade (0) isshown in Table TEEE.4.2 Reinforced, filled, and/or lubricated versions of the polyether-ester materials that are not in Table TEEE are classified inaccordance w
25、ith Tables TEEE andA. Table TEEE is used to specify the group of polyester materials and TableAis used to specifythe property requirements after the addition of reinforcements or lubricants at the nominal level indicated (see 4.2.1).4.2.1 Reinforced, filled, and/or lubricated versions of the basic m
26、aterials are identified by a single letter that indicates thereinforcement or filler used and two digits that indicate the nominal quantity in percent by weight. Thus, a letter designation G forglass-reinforced and 33 for % of reinforcement, G33, specifies a filled material with a nominal glass leve
27、l of 33 %. Thereinforcement letter designations and associated tolerance levels are shown in the following table:Symbol Material ToleranceC carbon and graphite fiber 2 %G glass 2 %L lubricants (for example, PTFE,graphite, silicone, andmolybdenum disulfide)depends upon material andprocessto be specif
28、iedM mineral 2 %R combination of reinforcementsor fillers, or both3 %NOTE 3This part of the classification system uses the percent of reinforcements or additives, or both, in the control of the modified basic material.The types and percentages of reinforcements and additives are sometimes shown on t
29、he suppliers technical data sheet unless they are proprietary innature. If necessary, additional callout of these reinforcements and additives can be accomplished by the use of the suffix part of the system (see Section5).4.2.2 Specific requirements for reinforced, filled, or lubricated polyether-es
30、ter materials shall be shown by a six-characterdesignation. The designation will consist of the letter “A” and the five digits comprising the cell numbers for the propertyrequirements in the order as they appear in Table A.3 Available from American National Standards Institute (ANSI), 25 W. 43rd St.
31、, 4th Floor, New York, NY 10036, http:/www.ansi.org.D6835 1724.2.2.1 Although the values listed are necessary to include the range of properties available in existing materials, users shall notinfer that every possible combination of the properties exists or can be obtained.4.2.3 When the grade of t
32、he basic material is not known or is not important, the use of “0” grade classification will be used forreinforced materials in this system.NOTE 4An example of a reinforced polyether-ester elastomer of this classification system is as follows. The designation TEEE0310G-20A45630would indicate the fol
33、lowing material requirements from Table A:TEEE0310 = polyether-ester elastomer from Table TEEEG20 = glass reinforced at 20 % nominal (see 4.2.1)A = Table A property requirements4 = flexural modulus of 150 MPa, min5 = flexural modulus of 450 MPa, max6 = tensile strength of 60 MPa, min3 = elongation a
34、t break of 20 %, min0 = unspecifiedIf no properties are specified, the designation would be TEEE0310G20A00000.TABLE A Detail Requirements Polyether-Ester ElastomersDesignation Order No. Property Cell Limits0 1 2 3 4 5 6 7 8 91 Flexural modulus, ISO 178, MPa, minA unspecified 10 25 75 150 250 450 100
35、0 2000 specify value2 Flexural modulus, ISO 178, MPa, maxA unspecified 25 75 150 250 450 1000 2000 4000 specify value3 Tensile strength, ISO 527-1, 2m MPa,minBunspecified 10 20 30 40 50 60 70 80 specify value3 Tensile strength, ISO 527-1, 2 MPa,minBunspecified 10 20 30 40 50 60 70 80 specify value4
36、Elongation at break, ISO 527-1, 2, %,minBunspecified 5 10 20 100 200 300 400 500 specify value5 To be determined unspecified . . . . . . . . .ATest specimen80 10 4 mm. Test Speed2 mm/min.BISO 5271-2, Type 1BA specimen. Tensile strength shall be determined using a Type A12 test speciemen as described
37、 in ISO 20753. Test Speed50 mm/minD6835 173TABLE TEEE Requirements for Polyether-Ester ElastomersGroup Class Grade DescriptionA FlexuralModulusBISO 178MPaFlowRateCISO 1133g/10 minFlowRateConditionC/kgTensileStrengthDISO 527-1, 2MPa, minElongationatBreakDISO 527-1, 2,% min01 1 1 Blow Molding 25 to 15
38、0 0.5 to 5 230/2.16 20 1500 Other 25 to 150 0.5 to 5 . . .2 1 25 to 150 2 to 12 220/2.16 5 3002 25 to 150 2 to 12 220/2.16 15 3003 25 to 150 2 to 12 190/2.16 15 2500 Other 25 to 150 2 to 12 . . .3 1 25 to 150 160 #50 2 40 B 200 100160 50 2 50 B 200 100. . 4 20 B 200 100AHardness determined by ISO 86
39、8 or Test Method D2240.B30C above melting temperature as determined by ISO 11357-3 (except the heating rate shall be 10C/min) or Test Method D3418.5. Suffixes5.1 When additional requirements are needed that are not covered by the basic requirements or cell-table requirements, theyshall be indicated
40、through the use of suffixes.5.2 A list of suffixes can be found in Classification D4000 (Table 3) and can be used to indicate additional requirements asappropriate. Additional suffixes will be added to that classification system as test methods and requirements are developed andrequested.6. General
41、Requirements6.1 Basic requirements from the property or cell tables are always in effect unless superseded by specific suffix requirements,which always take precedence.6.2 The plastics composition shall be uniform and shall conform to the requirements specified herein.7. Detail Requirements7.1 The m
42、aterials shall conform to the requirements in Tables TEEE and A, and suffix requirements as they apply.7.2 For the purpose of determining conformance, all specified limits for a specification (line callout) based on this classificationsystem are absolute limits, as defined in Practice E29.7.3 With t
43、he absolute method, an observed value or a calculated value is not rounded off, but is to be compared directly to thespecified limiting value. Conformance or nonconformance is based on this comparison.8. Sampling8.1 Sampling shall be statistically adequate to satisfy the requirements of 12.4.8.2 A b
44、atch or lot shall be constituted as a unit of manufacture as prepared for shipment and can consist of a blend of two ormore “production runs.”9. Specimen Preparation9.1 The test specimens shall be molded in accordance with ISO 294 and Practice D3641. Recommended processing conditionsare shown in Tab
45、le 1.10. Conditioning10.1 Test specimens shall be conditioned in the standard laboratory atmosphere in accordance with Procedure A of PracticeD618 before performing the required tests.10.2 Conduct tests in the standard laboratory atmosphere of 23 6 2C and 50 6 10 % 23C and 50 % relative humidity.11.
46、 Test Methods11.1 Determine the properties enumerated in this classification system by means of the test methods referenced in Section 2.11.1.1 The number of tests shall be consistent with the requirements of Section 8 and 12.4.12. Inspection and Certification12.1 Inspection and certification of the
47、 material supplied with reference to a specification based on this classification systemshall be for conformance to the requirements specified herein.12.2 Lot-acceptance inspection shall be the basis on which acceptance or rejection of the “lot” is made. The lot-acceptanceinspection shall consist of
48、 the tests listed as they apply:12.2.1 Flow rate.12.2.2 Reinforcement content.12.3 Periodic-check inspection with reference to a specification based upon this classification system shall consist of the testsspecified for all requirements of the material under the specification. Inspection frequency
49、shall be adequate to assure the materialis certifiable in accordance with 12.4.D6835 17512.4 Certification shall be that the material was manufactured, sampled, tested and inspected in accordance with thisclassification system and that the average values for the lot meet the requirements of the specification line callout.12.5 Reports of the test results shall be furnished when requested. The report shall consist of results of the lot-acceptanceinspection for the shipment and results of the most recent periodic-check inspection.13. P
