ASTM D6339-04
(Specification)Standard Specification for Syndiotactic Polystyrene Molding and Extrusion (SPS)
Standard Specification for Syndiotactic Polystyrene Molding and Extrusion (SPS)
SCOPE
1.1 This specification covers syndiotactic polystyrene materials including homopolymer, copolymers and impact modified, suitable for molding and extrusion. Recycled product will be addressed in a separate standard.
1.2 This specification is intended to be a means of calling out plastic materials used in fabrication of end use items or parts. Material selection should be made by those having expertise in the plastics 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 inherent properties of the material other than those covered by this specification, and the economics.
1.3 The properties included in this specification are those required to identify the compositions covered. Other requirements necessary to identify particular characteristics important to specialized applications can be called out using the suffixes given in Section 5.
Note 1-There is no ISO equivalent
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Designation: D 6339 – 04
Standard Specification for
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Syndiotactic Polystyrene Molding and Extrusion (SPS)
This standard is issued under the fixed designation D 6339; 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.
1. Scope* D 1525 Test Method for Vicat Softening Temperature of
Plastics
1.1 This specification covers syndiotactic polystyrene ma-
D 1898 Practice for Sampling of Plastics
terials including homopolymer, copolymers, blends, and im-
D 3641 Practice for Injection Molding Test Specimens of
pact modified, suitable for molding and extrusion. Recycled
Thermoplastic Molding and Extrusion Materials
product will be addressed in a separate standard.
D 3892 Practice for Packaging/Packing of Plastic
1.2 This specification is intended to be a means of calling
D 4000 Classification System for Specifying Plastic Mate-
out plastic materials used in fabrication of end use items or
rials
parts. Material selection should be made by those having
D 5630 Test Method for Ash Content in Thermoplastics
expertise in the plastics field after careful consideration of the
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2.2 Military Standard:
design and the performance required of the part, the environ-
MIL-STD-105 Sampling Procedure and Tables for Inspec-
ment to which it will be exposed, the fabrication process to be
tion by Attributes
employed, the inherent properties of the material other than
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2.3 ISO Standards:
those covered by this specification, and the economics.
ISO 75–1 and 2 Plastics: Determination of Temperature of
1.3 The properties included in this specification are those
Deflection Under Load
required to identify the compositions covered. Other require-
ISO 178 Plastics: Determination of Flexural Properties
ments necessary to identify particular characteristics important
ISO 180 Plastics: Determination of Izod Impact Strength
to specialized applications can be called out using the suffixes
ISO 306 Plastics: Thermoplastic Materials-Determination
given in Section 5.
of Vicat Softening Temperature (VST)
NOTE 1—There is no ISO equivalent.
ISO 527–2 Plastics: Determination of Tensile Properties-
Part 2: Test Conditions for Moulding and Extrusion
2. Referenced Documents
Plastics
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2.1 ASTM Standards:
ISO 1133 Plastics—Determination of the Melt Mass-Flow
D 256 Test Methods for Impact Resistance of Plastics and
Rate (MFR) and the Melt Volume-Flow Rate (MVR) of
Electrical Insulating Materials
Thermoplastics
D 618 Practice for Conditioning Plastics for Testing
ISO 1183 Plastics: Methods for Determining the Density
D 638 Test Method for Tensile Properties of Plastics
and Relative Density of Non-Cellular Plastics
D 648 Test Method for Deflection Temperature of Plastics
ISO 3451 Plastics: Determination of Ash-Part 1 General
under Flexural Load
Methods
D 790 TestMethodsforFlexuralPropertiesofUnreinforced
and Reinforced Plastics and Electrical Insulating Materials
3. Terminology
D 792 Test Methods for Specific Gravity (Relative Density)
3.1 Definitions—For definitions of technical terms pertain-
of Plastic by Displacement
ing to plastics used in this specification, see Terminology
D 883 Terminology Relating to Plastics
D 883.
D 1238 Test Methods for Flow Rate of Thermoplastics by
Extrusion Plastometer
4. Classification
4.1 Syndiotactic polystyrene materials are classified into
groups according to classes and grades shown in the basic
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This specification is under the jurisdiction of ASTM Committee D20 on
propertiestable,TableSPS.Injectionmoldedpropertiesarethe
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
Materials.
Current edition approved February 1, 2004. Published March 2004. Originally
approved in 1998. Last previous edition approved in 1998 as D 6339 - 98.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Standardization Documents Order Desk, Bldg. 4 Section D,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Philadelphia, PA, 199111-5094, Attn: PODS.
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Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
*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.
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D6339–04
preferred standard and are used for the basis of call out
B = Cell Table B for properties requirements,
7 = Tensile strength, 70 MPa, minimum,
examples. Call outs can be m
...
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