ASTM D4474-00
(Classification)Standard Classification System for Styrenic Thermoplastic Elastomer Injection Molding and Extrusion Materials (TES) (Withdrawn 2008)
Standard Classification System for Styrenic Thermoplastic Elastomer Injection Molding and Extrusion Materials (TES) (Withdrawn 2008)
SCOPE
1.1 This classification and subsequent line callout (specification) cover styrenic block copolymer thermoplastic elastomer materials for injection molding and extrusion. Copolymers consist of polystyrene segments bound to rubbery segments. The rubbery segments may be saturated or unsaturated. Compounding ingredients may be present as necessary for the application. The compounding ingredients may consist of reinforcements, resins, plasticizers, fillers, stabilizers, and colorants. Recycled styrenic thermoplastic elastomers are not covered in this classification.
1.2 The properties included in this classification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics that are important to specialized applications. These may be described by using the suffixes specified in Section 5.
1.3 The values stated in SI units, as detailed in IEEE/ASTM SI 10, are to be regarded as the standard.
Note 1--There is no equivalent ISO standard.
WITHDRAWN RATIONALE
Formerly under the jurisdiction of Committee D20 on Plastics, this classification was withdrawn in April 2008 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D 4474 – 00
Standard Classification System for
Styrenic Thermoplastic Elastomer Injection Molding and
Extrusion Materials (TES)
This standard is issued under the fixed designation D 4474; 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 (e) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This classification system is intended to be a means of calling out materials used in the fabrication
of end items or parts. It is not intended for the selection of materials. Material selection should be
made by those having expertise in the plastics field after careful consideration of the design and
performance required of the part, the environment to which it will be exposed, the fabrication process
to be employed, the inherent properties of the material other than those covered by this classification
system, and the economics.
1. Scope* D 624 Test Method for Tear Strength of Conventional
Vulcanized Rubber and Thermoplastic Elastomers
1.1 This classification and subsequent line callout (specifi-
D 790 TestMethodsforFlexuralPropertiesofUnreinforced
cation) cover styrenic block copolymer thermoplastic elas-
and Reinforced Plastics and Electrical Insulating Materials
tomer materials for injection molding and extrusion. Copoly-
D 792 TestMethodsforDensityandSpecificGravity(Rela-
mers consist of polystyrene segments bound to rubbery
tive Density) of Plastics by Displacement
segments. The rubbery segments may be saturated or unsatur-
D 883 Terminology Relating to Plastics
ated. Compounding ingredients may be present as necessary
D 1600 Terminology for Abbreviated Terms Relating to
for the application. The compounding ingredients may consist
Plastics
of reinforcements, resins, plasticizers, fillers, stabilizers, and
D 1898 Practice for Sampling of Plastics
colorants. Recycled styrenic thermoplastic elastomers are not
D 2240 Test Method for Rubber Property—Durometer
covered in this classification.
Hardness
1.2 The properties included in this classification are those
D 3892 Practice for Packaging/Packing of Plastics
required to identify the compositions covered. There may be
D 4000 Classification System for Specifying Plastic Mate-
other requirements necessary to identify particular character-
rials
istics that are important to specialized applications. These may
D 5740 Guide for Writing Material Standards in the Clas-
be described by using the suffixes specified in Section 5.
sification D 4000 Format
1.3 The values stated in SI units, as detailed in IEEE/
E 29 Practice for Using Significant Digits in Test Data to
ASTM SI 10, are to be regarded as the standard.
Determine Conformance with Specification
NOTE 1—There is no equivalent ISO standard.
IEEE/ASTM SI 10 Standard for Use of the International
System of Units (SI): The Modern Metric System
2. Referenced Documents
2.1 ASTM Standards:
3. Terminology
D 412 Test Methods for Vulcanized Rubber and Thermo-
3.1 Definitions:
plastic Elastomers—Tension
3.1.1 Fordefinitionsoftechnicaltermspertainingtoplastics
D 618 Practice for Conditioning Plastics for Testing
used in this classification, see Terminology D 883.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 styrenic thermoplastic elastomer (TES)—acopolymer
ThisclassificationsystemisunderthejurisdictionofASTMCommitteeD20on
material comprising styrenic end-block segments which are
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
Materials. bound to a rubbery segment that may be saturated or unsatur-
Current edition approved Nov. 10, 2000. Published February 2001. Originally
ated and which normally contain substantial amounts of added
published as D 4474 – 85. Last previous edition D 4474 – 96.
materials such as other polymers, oils, fillers, and colorants.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Withdrawn.
*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.
D4474–00
3.2.2 unsaturated styrenic thermoplastic elastomer proprietary nature. Consequently, there is no distinction be-
(TESU)—a copolymer material comprising styrenic end- tween reinforced and unreinforced versions. This part of the
blocks which are bound to an unsaturated rubbery segment. callout is omitted.
3.2.3 saturated styrenic thermoplastic elastomer (TESS)—a 4.3 Specific requirements shall be shown by a six character
copolymer material comprising styrenic end-blocks which are designation.The designation will consist of the letterAand the
bound to a saturated rubbery segment. five digits comprising the cell numbers for the property
3.2.4 thermoplastic elastomers (TPE)—a diverse family of requirements in the order as they appear in Table A.
rubber-like materials that, unlike conventional vulcanized rub- 4.3.1 Although the values listed are necessary to include the
bers, can be processed and recycled like thermoplastic mate- range of properties available in existing materials, users should
rials. not infer that every possible combination of the properties
exists or can be obtained.
4. Classification 4.3.2 An example of this classification system is as follows:
The designation TES 0110A22240 would indicate the follow-
4.1 Styrenic thermoplastic elastomer materials are classified
ing, with the material requirements from Table A:
into groups according to their basic composition.These groups
TES 0110 = Styrenic saturated thermoplastic elastomer hav-
are subdivided into classes and grades as shown in Table TES.
ing low hardness from Table TES.
4.1.1 An example of this classification system is as follows:
ThedesignationTES0112wouldindicateTES = thermoplastic
elastomerstyrenic, as found in Terminology D 1600, 01
A = Table A property requirements,
(group) = saturated rubber, 1 (class) = low hardness, and 2
2 = 50 Durometer A hardness, min,
(grade) with requirements given in Table TES.
2 = 50 MPa flexural modulus, min,
4.1.2 To facilitate the incorporation of future or special
2 = 5.0 MPa tensile strength, min,
materials, the “other/unspecified” category (0) for group, class,
4 = 500 % elongation, min, and
and grade is shown in Table TES. The basic properties can be 0 = Unspecified.
obtained from Table A. If no properties are specified, the designation would be TES
4.2 Styrenic thermoplastic elastomers suitable for injection 0110 A00000.
molding and extrusion are fully compounded materials of a
TABLE TES Detail Requirements for Styrenic Thermoplastic Elastomers
Tear Re-
Hardness,
Flexural Tensile Elongation, sistance,
ASTM Specific Grav-
Modulus, Strength, (Ultimate) ASTM
Group Description Class Description Grade Description D 2240, A/D ity, ASTM
ASTM D 790, ASTM D 412, ASTM D 412, D 624, Die
Durometer D 792, 6 0.02,
min, MPa min, MPa min, % C, min,
Typical
KN/m
01 Saturated 1 Low hardness 1 47A <10 3.0 500 13 1.19
rubber 2 55A <10 9.0 600 15 0.92
segment 3 59A 11 4.0 500 16 1.20
0 Other
2 Medium 1 82A 52 7.8 450 47 1.01
hardness 2 89A 130 3.9 300 21 1.86
3 91A 125 9.0 450 36 1.14
0 Other
3 High 1 45D 480 11 400 50 1.20
hardness 2 44D 310 12 400 70 1.14
3 49D 360 4.1 200 26 1.83
4 57D 450 15 500 85 1.02
5 60D 520 13 350 98 0.91
6 64D 1480 15 350 76 1.29
0 Other
0 Other 0 Other
02 Unsaturated 1 Low hardness 0 Other
rubber 2 Medium 0 Other
segment hardness 0 Other
3 High 1 47D 250 6.7 300 52 1.05
hardness
0 Other
0 Other 0 Other
00 Other 0 Other 0 Other
D4474–00
TABLE A Detail Requirements Styrenic Thermoplastic Elastomers
Desig-
nation
Property
Order
0 1 2345678 9
Number
1 Hardness, Unspeci- 40A 50A 60A 70A 80A 40D 50D 60D Specify
ASTM fied value
D 2240, A/D
Durometer,
min
2 Flexural Unspeci- 10 50 100 200 300 500 700 900 Specify
modulus fied value
ASTM D 790,
MPa, min
3 Tensile Unspeci- 3.0 5.0 7.0 9.0 11.0 13.0 15.0 17.0 Specify
Strength, fied value
ASTM D 412,
MPa, min
4 Elongation, Unspeci- 200 300 400 500 600 700 800 900 Specify
ASTM fied value
D 412, %, min
5Tobe
determined
5. Suffixes statistical sampling shall be considered an acceptable alterna-
tive.Alot of resin shall be considered as a unit of manufacture
5.1 Whenrequirementsareneededthatsupersedeorsupple-
as prepa
...
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