ASTM D6339-05

Standard Specification for Syndiotactic Polystyrene Molding and Extrusion (SPS)

ABSTRACT
This specification covers syndiotactic polystyrene materials including homopolymer, copolymers, blends, and impact modified, suitable for molding and extrusion. The materials are classified as follows: group 01 - homopolymer; group 02 - copolymer; group 03 - flame retardant; group 04 - blends; group 00 - others. These are further classified as class 1 - general purpose; class 2 - impact modified; and class - others. The reinforced and additive materials are as follows: carbon and graphite-reinforced, glass, mineral-reinforced, lubricants, combination of reinforcement, or fillers, or both. Materials shall be tested, test specimens shall be molded by an injection molding process, and the individual grades shall conform to specified values of tensile strength, flexural modulus, tensile modulus, deflection temperature, specific gravity, Izod impact, and ISO Charpy impact, Vicat softening point, melt flow rate.
SCOPE
1.1 This specification covers syndiotactic polystyrene materials including homopolymer, copolymers, blends, 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 .Note 1
There is no ISO equivalent.

General Information

• Status: Historical
• Publication Date: 28-Feb-2005
• ICS: 83.040.01 - Raw materials for rubber and plastics in general
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Relations

• Replaces: ASTM D6339-04 - Standard Specification for Syndiotactic Polystyrene Molding and Extrusion (SPS)
• Effective Date: 01-Mar-2005
• Replaced By: ASTM D6339-11 - Standard Classification System for and Basis for Specifications for Syndiotactic Polystyrene Molding and Extrusion (SPS)
• Effective Date: 01-Feb-2011
• Referred By: ASTM D4000-23 - Standard Classification System for Specifying Plastic Materials
• Effective Date: 01-Mar-2005

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: D6339 – 05
Standard Specification for
1
Syndiotactic Polystyrene Molding and Extrusion (SPS)
This standard is issued under the fixed designation D6339; 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* by Extrusion Plastometer
D1525 Test Method for Vicat Softening Temperature of
1.1 This specification covers syndiotactic polystyrene ma-
Plastics
terials including homopolymer, copolymers, blends, and im-
D1898 Practice for Sampling of Plastics
pact modified, suitable for molding and extrusion. Recycled
D3641 Practice for Injection Molding Test Specimens of
product will be addressed in a separate standard.
Thermoplastic Molding and Extrusion Materials
1.2 This specification is intended to be a means of calling
D3892 Practice for Packaging/Packing of Plastics
out plastic materials used in fabrication of end use items or
D4000 Classification System for Specifying Plastic Materi-
parts. Material selection should be made by those having
als
expertise in the plastics field after careful consideration of the
D5630 Test Method for Ash Content in Plastics
design and the performance required of the part, the environ-
3
2.2 Military Standard:
ment to which it will be exposed, the fabrication process to be
MIL-STD-105 Sampling Procedure and Tables for Inspec-
employed, the inherent properties of the material other than
tion by Attributes
those covered by this specification, and the economics.
4
2.3 ISO Standards:
1.3 The properties included in this specification are those
ISO 75–1 and 2 Plastics: Determination of Temperature of
required to identify the compositions covered. Other require-
Deflection Under Load
ments necessary to identify particular characteristics important
ISO 179–1 Determination of Charpy Impact Strength—Part
to specialized applications can be called out using the suffixes
1: Non-Instrumented Impact Test
given in Section 5.
ISO 306 Plastics: Thermoplastic Materials-Determination
NOTE 1—There is no ISO equivalent.
of Vicat Softening Temperature (VST)
ISO 527–2 Plastics: Determination of Tensile Properties-
2. Referenced Documents
Part 2: Test Conditions for Moulding and Extrusion
2
2.1 ASTM Standards:
Plastics
D256 Test Methods for Determining the Izod Pendulum
ISO 1133 Plastics—Determination of the Melt Mass-Flow
Impact Resistance of Plastics
Rate (MFR) and the Melt Volume-Flow Rate (MVR) of
D618 Practice for Conditioning Plastics for Testing
Thermoplastics
D638 Test Method for Tensile Properties of Plastics
ISO 1183 Plastics: Methods for Determining the Density
D648 Test Method for Deflection Temperature of Plastics
and Relative Density of Non-Cellular Plastics
Under Flexural Load in the Edgewise Position
ISO 3451 Plastics: Determination of Ash-Part 1 General
D790 Test Methods for Flexural Properties of Unreinforced
Methods
and Reinforced Plastics and Electrical Insulating Materials
D792 Test Methods for Density and Specific Gravity (Rela-
3. Terminology
tive Density) of Plastics by Displacement
3.1 Definitions—For definitions of technical terms pertain-
D883 Terminology Relating to Plastics
ing to plastics used in this specification, see Terminology
D1238 Test Method for Melt Flow Rates of Thermoplastics
D883.
4. Classification
1
This specification is under the jurisdiction of ASTM Committee D20 on
4.1 Syndiotactic polystyrene materials are classified into
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
groups according to classes and grades shown in the basic
Materials.
propertiestable,TableSPS.Injectionmoldedpropertiesarethe
Current edition approved March 1, 2005. Published March 2005. Originally
approved in 1998. Last previous edition approved in 2004 as D6339 - 04. DOI:
10.1520/D6339-05.
2 3
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 [e-mail]. For Annual Book of ASTM Philadelphia, PA, 199111-5094, Attn: PODS.
4
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 – 05
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
...