Standard Classification System and Basis for Polyketone Injection Molding and Extrusion Materials (PK)

SCOPE
1.1 This classification system covers polyketone materials suitable for injection molding and extrusion. This classification system does not address recycled polyketone materials.  
1.2 The properties included in this classification system are those required to identify the compositions covered. Other requirements necessary to identify particular characteristics important to specialized applications are to be specified by using suffixes as given in Section 5.  
1.3 This classification system and subsequent line call out (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 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.  
1.4  The following precautionary caveat pertains only to the test method 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 1: This classification system and ISO 21970-1 and ISO 21970-2 address the same subject matter, but differ in technical content.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Publication Date
31-Jan-2020
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ASTM D5990-20 - Standard Classification System and Basis for Polyketone Injection Molding and Extrusion Materials (PK)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D5990 −20
Standard Classification System and Basis for
1
Polyketone Injection Molding and Extrusion Materials (PK)
This standard is issued under the fixed designation D5990; 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* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This classification system covers polyketone materials
D256 Test Methods for Determining the Izod Pendulum
suitable for injection molding and extrusion.This classification
Impact Resistance of Plastics
system does not address recycled polyketone materials.
D618 Practice for Conditioning Plastics for Testing
1.2 The properties included in this classification system are
D638 Test Method for Tensile Properties of Plastics
those required to identify the compositions covered. Other
D648 Test Method for Deflection Temperature of Plastics
requirements necessary to identify particular characteristics
Under Flexural Load in the Edgewise Position
important to specialized applications are to be specified by
D792 Test Methods for Density and Specific Gravity (Rela-
using suffixes as given in Section 5.
tive Density) of Plastics by Displacement
1.3 This classification system and subsequent line call out D883 Terminology Relating to Plastics
(specification) are intended to provide a means of calling out D1238 Test Method for Melt Flow Rates of Thermoplastics
plastic materials used in the fabrication of end items or parts. by Extrusion Plastometer
It is not intended for the selection of materials. Material D1600 Terminology forAbbreviatedTerms Relating to Plas-
selection should be made by those having expertise in the tics
plastic field after careful consideration of the design and the D3418 Test Method for Transition Temperatures and En-
performance required of the part, the environment to which it thalpies of Fusion and Crystallization of Polymers by
will be exposed, the fabrication process to be employed, the Differential Scanning Calorimetry
costsinvolved,andtheinherentpropertiesofthematerialother
D3641 Practice for Injection Molding Test Specimens of
than those covered by this classification system. Thermoplastic Molding and Extrusion Materials
D3892 Practice for Packaging/Packing of Plastics
1.4 The following precautionary caveat pertains only to the
D4000 Classification System for Specifying Plastic Materi-
test method portion, Section 11, of this classification system:
als
This standard does not purport to address all of the safety
D5630 Test Method for Ash Content in Plastics
concerns, if any, associated with its use. It is the responsibility
E29 Practice for Using Significant Digits in Test Data to
of the user of this standard to establish appropriate safety,
Determine Conformance with Specifications
health, and environmental practices and determine the appli-
3
2.2 ISO Standards:
cability of regulatory limitations prior to use.
ISO 21970-1 Plastics—Polyketone (PK) moulding and ex-
NOTE 1—This classification system and ISO 21970-1 and ISO 21970-2
trusion materials—Part 1: Designation system and basis
address the same subject matter, but differ in technical content.
for specifications
1.5 This international standard was developed in accor-
ISO 21970-2 Plastics—Polyketone (PK) moulding and ex-
dance with internationally recognized principles on standard-
trusion materials—Part 2: Preparation of test specimens
ization established in the Decision on Principles for the
and determination of properties
Development of International Standards, Guides and Recom-
3. Terminology
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
3.1 Except for the term defined as follows, the terminology
used in this classification system is in accordance with Termi-
nologies D883 and D1600.
1
These test methods are under the jurisdiction of ASTM Committee D20 on
2
Plastics and are the direct responsibility of Subcommittee D20.15 on Thermoplastic For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Materials. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Feb. 1, 2020. Published March 2020. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1996. Last previous edition approved in 2000 as D5990 – 00, which the ASTM website.
3
was withdrawn September 2007 and reinstated in February 2020. DOI: 10.1520/ Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
D5990-20. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standa
...

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