Standard Specification for Thermoplastic Polyester (TPES) Injection and Extrusion Materials Based on ISO Test Methods

ABSTRACT
This specification is intended to provide a callout system for thermoplastic polyester (TPES) injection and extrusion materials, both virgin and recycled, based on ISO test methods. However, the proportions of recycled material used, and the nature and amount of any contaminant, as well as the selection of materials cannot be covered practically in this specification. Materials are classified into groups according to their composition, and are further subdivided into classes and grades as specified. Individual groups shall be identified in accordance to performance properties as to tensile strength, tensile modulus, Charpy impact strength, deflection temperature, melt flow rate, and density.
SCOPE
1.1 This specification covers thermoplastic polyester materials suitable for molding or extrusion.
1.2 This specification allows for the use of recycled thermoplastic polyester materials provided that the requirements as stated in this specification 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 specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specialized applications. These may be specified 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 should be made by those having expertise in the plastic 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 used, the costs involved, and the inherent properties of the material other than those covered by this specification.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 The following hazards caveat pertains only to the test methods portion, Section 11, of this specification:  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 specification is similar to ISO 7792-1:1995 and ISO 7792-2:1988, although the technical content is significantly different.

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ASTM D5927-03 - Standard Specification for Thermoplastic Polyester (TPES) Injection and Extrusion Materials Based on ISO Test Methods
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D 5927 – 03
Standard Specification for
Thermoplastic Polyester (TPES) Injection and Extrusion
1
Materials Based on ISO Test Methods
This standard is issued under the fixed designation D 5927; 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 material specification is intended to provide a callout system for thermoplastic polyester
materials based on ISO test methods.
1. Scope* of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita-
1.1 This specification covers thermoplastic polyester mate-
tions prior to use.
rials suitable for molding or extrusion.
1.2 This specification allows for the use of recycled ther-
NOTE 1—This specification is similar to ISO 7792-1:1995 and ISO
moplasticpolyestermaterialsprovidedthattherequirementsas 7792-2:1988, although the technical content is significantly different.
stated in this specification are met.The proportions of recycled
2. Referenced Documents
material used, as well as the nature and amount of any
2.1 ASTM Standards:
contaminant, however, cannot be covered practically in this
2
specification. D 883 Terminology Relating to Plastics
D 1600 Terminology for Abbreviated Terms Relating to
1.3 The properties included in this specification are those
2
required to identify the compositions covered. There may be Plastics
3
D 3892 Practice for Packaging/Packing of Plastics
other requirements necessary to identify particular character-
istics important to specialized applications. These may be D 4000 Classification System for Specifying Plastic Mate-
3
rials
specified by using the suffixes as given in Section 5.
1.4 This classification system and subsequent line callout E 29 Practice for Using Significant Digits in Test Data to
4
Determine Conformance with Specifications
(specification) are intended to provide a means of calling out
5
plastic materials used in the fabrication of end items or parts. 2.2 IEC and ISO Standards:
IEC 112 Recommended Method for Determining the Com-
It is not intended for the selection of materials. Material
selection should be made by those having expertise in the parative Tracking Index of Solid Insulation Materials
IEC 243 Recommended Methods of Test for Electrical
plastic field after careful consideration of the design and
performance required of the part, the environment to which it Strength of Solid Insulating Materials at Power Frequen-
cies
will be exposed, the fabrication process to be used, the costs
involved, and the inherent properties of the material other than ISO 62 Plastics—Determination of Water Absorption
ISO 75-1:1993 Plastics—Determination of Temperature of
those covered by this specification.
Deflection Under Load—Part 1: General Test Methods
1.5 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information ISO 75-2:1993 Plastics—Determination of Temperature of
Deflection Under Load—Part 2: Plastics and Ebonite
only.
1.6 The following hazards caveat pertains only to the test ISO 179-1:1993 Plastics—Determination of Charpy Impact
Strength
methods portion, Section 11, of this specification: This stan-
dard does not purport to address all of the safety concerns, if ISO 291:1997 Plastics—Standard Atmospheres for Condi-
tioning and Testing
any, associated with its use. It is the responsibility of the user
1 2
This specification is under the jurisdiction of ASTM Committee D20 on Annual Book of ASTM Standards, Vol 08.01.
3
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Annual Book of ASTM Standards, Vol 08.02.
4
Materials. Annual Book of ASTM Standards, Vol 14.02.
5
Current edition approved March 10, 2003. Published April 2003. Originally Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
approved in 1996. Last previous edition approved in 2000 as D 5927 – 00. 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.
1

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D5927–03
ISO 294-1:1996 Plastics—Injection Moulding of Test
Symbol Material Tolerance
Specimens of Thermoplastic Materials—Part 1: General
C carbon- and graphite-fiber- 62%
Principles, Multipurpose-Test Specimens (ISO Mould
reinforced
Type A) and Bars (ISO Mould Type B) G glass-reinforced 62%
L lubricants (such as PTFE, depends on material and pro-
ISO 527-1:1993 Plastics—Determination of Tensile
graphite, silicone
...

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