ASTM D6835-08(2014)
(Classification)Standard Classification System for Thermoplastic Elastomer-Ether-Ester Molding and Extrusion Materials (TEEE)
Standard Classification System for Thermoplastic Elastomer-Ether-Ester Molding and Extrusion Materials (TEEE)
SCOPE
1.1 This classification system covers segmented block copolyether-ester 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 that the requirements as stated in this classification system 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 properties included in this classification system are those required to identify the compositions covered. It is possible that there are other requirements necessary to identify particular characteristics important to specialized applications. One way of specifying 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 plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection is best made by those having expertise in the plastic field after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties 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 to the test methods portion, Section 11, of this classification system. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.Note 1—This standard, ISO 14910-1, and ISO 14910-2 address the same subject matter, but differ in technical content.
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Standards Content (Sample)
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Designation: D6835 −08 (Reapproved 2014)
Standard Classification System for
Thermoplastic Elastomer-Ether-Ester Molding and Extrusion
Materials (TEEE)
This standard is issued under the fixed designation D6835; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope health practices and determine the applicability of regulatory
limitations prior to use.
1.1 This classification system covers segmented block
copolyether-ester elastomers suitable for molding and extru-
NOTE 1—This standard, ISO 14910-1, and ISO 14910-2 address the
same subject matter, but differ in technical content.
sion.
1.2 This classification system allows for the use of seg-
2. Referenced Documents
mented block copolyether-ester elastomers that are recycled
2.1 ASTM Standards:
provided that the requirements as stated in this classification
D618 Practice for Conditioning Plastics for Testing
system are met. The proportions of recycled material used, as
D883 Terminology Relating to Plastics
well as the nature and amount of any contaminant, however,
D1600 TerminologyforAbbreviatedTermsRelatingtoPlas-
cannot be covered practically in this specification.
tics
1.3 The properties included in this classification system are
D2240 Test Method for Rubber Property—Durometer Hard-
those required to identify the compositions covered. It is
ness
possible that there are other requirements necessary to identify
D3418 Test Method for Transition Temperatures and En-
particular characteristics important to specialized applications.
thalpies of Fusion and Crystallization of Polymers by
One way of specifying them is by using the suffixes as given in
Differential Scanning Calorimetry
Section 5.
D3641 Practice for Injection Molding Test Specimens of
1.4 This classification system and subsequent line callout
Thermoplastic Molding and Extrusion Materials
(specification) are intended to provide a means of calling out
D3892 Practice for Packaging/Packing of Plastics
plastic materials used in the fabrication of end items or parts.
D4000 Classification System for Specifying Plastic Materi-
It is not intended for the selection of materials. Material
als
selection is best made by those having expertise in the plastic
E29 Practice for Using Significant Digits in Test Data to
field after careful consideration of the design and the perfor-
Determine Conformance with Specifications
mance required of the part, the environment to which it will be
2.2 ISO Standards:
exposed, the fabrication process to be employed, the costs
ISO 178 Plastics-Determination of Flexural Properties
involved, and the inherent properties of the material other than
ISO 294-1 Plastics-Injection Moulding ofTest Specimens of
those covered by this classification system.
Thermoplastic Materials-Part 1: General Principles and
1.5 The values stated in SI units are to be regarded as
Moulding of Multipurpose and Bar Test Specimens
standard. No other units of measurement are included in this ISO 527-1 Plastics-Determination of Tensile Properties-Part
standard.
1: General Principles
ISO 527-2 Plastics-Determination of Tensile Properties-Part
1.6 The following precautionary caveat pertains only to the
2: Test Conditions for Moulding and Extrusion Plastics
test methods portion, Section 11, of this classification system.
ISO 868 Plastics and Ebonite-Determination of Indentation
This standard does not purport to address all of the safety
Hardness by Means of a Durometer (Shore Hardness)
concerns, if any, associated with its use. It is the responsibility
ISO 1133 Plastics-Determination of the Melt Mass-Flow
of the user of this standard to establish appropriate safety and
1 2
ThisclassificationsystemisunderthejurisdictionofASTMCommitteeD20on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Materials. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved March 1, 2014. Published March 2014. Originally the ASTM website.
approved in 2002. Last previous edition approved in 2008 as D6835 - 08. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/D6835-08R14. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D6835 − 08 (2014)
Rate (MFR) and the Melt Volume–Flow Rate (MVR) of nominal quantity in percent by weight. Thus, a letter designa-
Thermoplastics tionGforglass-reinforcedand33for%ofreinforcement,G33,
ISO 11357-3 AMD 1 Plastics-Differential Scanning Calo- specifies a filled material with a nominal glass level of 33 %.
rimetry (DSC)-Part 3: Determination of Temperature and The reinforcement letter designations and associated tolerance
Enthalpy of Melting and Crystallization levels are shown in the following table:
ISO 14910-1 Plastics-Thermoplastic Polyester/ester and
Symbol Material Tolerance
C carbon and graphite fiber ±2 %
Polyether/ester Elastomers for Moulding and Extrusion-
G glass ±2 %
Part 1: Designation System and Basis for Specifications
L lubricants (for example, PTFE, depends upon material and
ISO 14910-2 Plastics-Thermoplastic Polyester/ester and
graphite, silicone, and process—to be specified
molybdenum disulfide)
Polyether/ester Elastomers for Moulding and Extrusion-
M mineral ±2 %
Part 2: Preparation of Test Specimens and Determination
R combination of reinforcements ±3 %
of Properties
or fillers, or both
NOTE 3—This part of the classification system uses the percent of
3. Terminology
reinforcements or additives, or both, in the control of the modified basic
material. The types and percentages of reinforcements and additives are
3.1 Definitions—The terminology used in this classification
sometimes shown on the supplier’s technical data sheet unless they are
system is in accordance with Terminologies D883 and D1600.
proprietary in nature. If necessary, additional callout of these reinforce-
ments and additives can be accomplished by the use of the suffix part of
4. Classification
the system (see Section 5).
4.1 Polyether-ester elastomers are classified into groups in
4.2.2 Specific requirements for reinforced, filled, or lubri-
accordance with flexural modulus. These groups are subdi-
cated polyether-ester materials shall be shown by a six-
vided into classes by viscosity range (flow rate) and are further
character designation. The designation will consist of the letter
subdivided into grades by tensile properties, as shown in the
“A” and the five digits comprising the cell numbers for the
basic property table (Table TEEE).
property requirements in the order as they appear in Table A.
4.2.2.1 Although the values listed are necessary to include
NOTE 2—AN EXAMPLE OF THIS CLASSIFICATION SYSTEM IS GIVEN AS FOLLOWS:
the range of properties available in existing materials, users
THE DESIGNATION TEEE0311 INDICATES THE FOLLOWING:
shallnotinferthateverypossiblecombinationoftheproperties
exists or can be obtained.
TEEE = polyether-ester elastomer
4.2.3 When the grade of the basic material is not known or
03 (group) = flexural modulus from 125 to 325 MPa
isnotimportant,theuseof“0”gradeclassificationwillbeused
1 (class) = flow rate from 2 to 12 g/10 min
for reinforced materials in this system.
1 (grade) = property requirements as given in Table TEEE
NOTE 4—An example of a reinforced polyether-ester elastomer of this
4.1.1 To facilitate the incorporation of future or special
classification system is as follows. The designation TEEE0310G-
materials, the other category for group (00), class (0), and
20A45630 would indicate the following material requirements fromTable
grade (0) is shown in Table TEEE.
A:
4.2 Reinforced, filled, and/or lubricated versions of the
polyether-ester materials that are not in Table TEEE are
TEEE0310 = polyether-ester elastomer from Table TEEE
classified in accordance with Tables TEEE andA. Table TEEE
G20 = glass reinforced at 20 % nominal (see 4.2.1)
is used to specify the group of polyester materials and TableA
A = Table A property requirements
4 = flexural modulus of 150 MPa, min
is used to specify the property requirements after the addition
5 = flexural modulus of 450 MPa, max
of reinforcements or lubricants at the nominal level indicated
6 = tensile strength of 60 MPa, min
(see 4.2.1).
3 = elongation at break of 20 %, min
4.2.1 Reinforced, filled, and/or lubricated versions of the
0 = unspecified
basicmaterialsareidentifiedbyasingleletterthatindicatesthe
If no properties are specified, the designation would be
reinforcement or filler used and two digits that indicate the TEEE0310G20A00000.
TABLE A Detail Requirements Polyether-Ester Elastom
...
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