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ASTM D2581-09

(Specification)

Standard Specification for Polybutylene (PB) Plastics Molding and Extrusion Materials (Withdrawn 2018)

Standard Specification for Polybutylene (PB) Plastics Molding and Extrusion Materials (Withdrawn 2018)

ABSTRACT
This classification system covers polybutylene plastics materials suitable for molding and extrusion that allows the material to be recycled. This system recognizes that polybutylene plastics are identified on the basis of two characteristics which are density and flow rate. The former is the criterion for assignment as to type of material which are Type I, Type II, and Type II that is colored and filled. The latter for designation as to categories and classes which are class A for general purpose and dielectric and is unpigmented, Class B also for general purpose and dielectric in black and white and Class C which is weather resistant, color black and containing not less than a certain percentage of carbon black.. The properties in this classification system shall be determined in accordance to test methods specified regarding its density, flow rate, tensile properties and carbon black content. Tensile properties include tensile strength, yield strength, and elongation at break.
SCOPE
1.1 This classification system covers polybutylene plastics materials suitable for molding and extrusion.
1.2 This classification system is applicable to all butene homopolymers and to copolymers of butene with a maximum content of other 1-olefinic monomers of less than 50 % and with a content of non-olefinic monomers with functional groups up to a maximum of 1 %.
1.3 This classification system allows for the use of those polybutylene plastic materials that are to be recycled, reconstituted, and reground, provided the following conditions are met:
1.3.1 The requirements as stated in this classification system and other guideline pertaining to these materials are met, and
1.3.2 The material has not been modified in any way to alter its conformance to water contact regulations or other similar requirements.
1.4 The proportions of recycled, reconstituted, and regrind material used, as well as the nature and the amount of any contaminant, cannot be practically covered in this classification system. It is the responsibility of the supplier and buyer of recycled, reconstituted, and regrind materials to ensure compliance.
1.5 The properties included in this classification system are those required to characterize and classify the specific product. Other properties are necessary to identify particular characteristics important to specialized applications. These are specified by using suffixes as given in Section 5. Properties shall be selected in such a manner that consistency of different lots or shipments is assured. The tests involved in this classification system are intended to provide information for identifying materials in accordance with types and categories. It is not the function of this classification system to provide specific engineering data for design purposes.
1.6 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 is to 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 standard.
1.7 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
Note 1—This standard, ISO 8986-1, and ISO 8986-2 address the same subject matter, but differ in technical content.  
1.8 The following precautionary caveat pertains only to the test methods 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 an...

General Information

Status
Withdrawn
Publication Date
31-Jul-2009
Withdrawal Date
21-Jan-2018
ICS
83.140.99 - Other rubber and plastics products
Technical Committee
D20 - Plastics
Drafting Committee
D20.15 - Thermoplastic Materials
Current Stage
Ref Project

Relations

Replaces
ASTM D2581-02 - Standard Specification for Polybutylene (PB) Plastics Molding and Extrusion Materials
Effective Date
01-Aug-2009

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ASTM D2581-09 - Standard Specification for Polybutylene (PB) Plastics Molding and Extrusion Materials (Withdrawn 2018)ASTM D2581-09 - Standard Specification for Polybutylene (PB) Plastics Molding and Extrusion Materials (Withdrawn 2018)
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ASTM D2581-09 - Standard Specification for Polybutylene (PB) Plastics Molding and Extrusion Materials (Withdrawn 2018)
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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:D2581 −09
Standard Classification System for
1
Polybutylene (PB) Plastics Molding and Extrusion Materials
This standard is issued under the fixed designation D2581; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* plastic materials used in the fabrication of end items or parts.
It is not intended for the selection of materials. Material
1.1 This classification system covers polybutylene plastics
selection is to be made by those having expertise in the plastic
materials suitable for molding and extrusion.
field after careful consideration of the design and the perfor-
1.2 This classification system is applicable to all butene
mancerequiredofthepart,theenvironmenttowhichitwillbe
homopolymers and to copolymers of butene with a maximum
exposed, the fabrication process to be employed, the costs
content of other 1-olefinic monomers of less than 50% and
involved, and the inherent properties of the material other than
with a content of non-olefinic monomers with functional
those covered by this standard.
groups up to a maximum of 1%.
1.7 The values stated in SI units are to be regarded as the
1.3 This classification system allows for the use of those
standard. The values given in parentheses are for information
polybutylene plastic materials that are to be recycled,
only.
reconstituted, and reground, provided the following conditions
NOTE 1—This standard, ISO8986-1, and ISO8986-2 address the same
are met:
subject matter, but differ in technical content.
1.3.1 Therequirementsasstatedinthisclassificationsystem
1.8 The following precautionary caveat pertains only to the
and other guideline pertaining to these materials are met, and
test methods portion, Section 11, of this classification system:
1.3.2 Thematerialhasnotbeenmodifiedinanywaytoalter
This standard does not purport to address all of the safety
its conformance to water contact regulations or other similar
concerns, if any, associated with its use. It is the responsibility
requirements.
of the user of this standard to establish appropriate safety and
1.4 The proportions of recycled, reconstituted, and regrind
health practices and determine the applicability of regulatory
material used, as well as the nature and the amount of any
limitations prior to use.
contaminant,cannotbepracticallycoveredinthisclassification
system. It is the responsibility of the supplier and buyer of
2. Referenced Documents
recycled, reconstituted, and regrind materials to ensure com-
2
2.1 ASTM Standards:
pliance.
C177Test Method for Steady-State Heat Flux Measure-
1.5 The properties included in this classification system are
ments and Thermal Transmission Properties by Means of
thoserequiredtocharacterizeandclassifythespecificproduct.
the Guarded-Hot-Plate Apparatus
Other properties are necessary to identify particular character-
D149Test Method for Dielectric Breakdown Voltage and
isticsimportanttospecializedapplications.Thesearespecified
DielectricStrengthofSolidElectricalInsulatingMaterials
by using suffixes as given in Section 5. Properties shall be
at Commercial Power Frequencies
selected in such a manner that consistency of different lots or
D150Test Methods forAC Loss Characteristics and Permit-
shipments is assured. The tests involved in this classification
tivity (Dielectric Constant) of Solid Electrical Insulation
system are intended to provide information for identifying
D257Test Methods for DC Resistance or Conductance of
materials in accordance with types and categories. It is not the
Insulating Materials
function of this classification system to provide specific engi-
D495Test Method for High-Voltage, Low-Current, DryArc
neering data for design purposes.
Resistance of Solid Electrical Insulation
D543Practices for Evaluating the Resistance of Plastics to
1.6 This classification system and subsequent line callout
Chemical Reagents
(specification) are intended to provide a means of calling out
D570Test Method for Water Absorption of Plastics
1
ThisclassificationsystemisunderthejurisdictionofASTMCommitteeD20on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
2
Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Aug. 1, 2009. Published August 2009. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1967. Last previous edition approved in 2002 as D2581-02. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D2581-09. the ASTM website.
*A Summary of Changes section appears at the end of this standa
...

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ABSTRACT
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SCOPE
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Standard Specification for Polymeric Piles

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SCOPE
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1.1 This classification system covers polyphthalamide (PPA) materials suitable for injection molding.  
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Note 2: ASTM Standard D6779 on polyamide materials also includes PPA materials in its coverage of various polyamide chemistries. This standard gives additional information for classification and specification for PPA compositions classified as Group 10 (PA6T/66), Group 12 (PA6T/6I/66) and Group 13 (PA6T/6I) in ASTM Standard D6779 and includes provisions for other PPA compositions to utilize the classification presented.  
1.7 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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SCOPE
1.1 This specification establishes requirements and methods of test for the material, dimensions, and workmanship, and the physical and electrical properties of molded sheet in minimum thicknesses of 0.794 mm (1/32 in.) manufactured from PTFE resin molding materials defined in Specification D4894.  
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SCOPE
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1.2 The values stated in SI units are to be regarded as the standard.  
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Standard Specification for Extruded Polytetrafluoroethylene (PTFE) Rod, Heavy Walled Tubing and Basic Shapes

ABSTRACT
This specification covers the testing and requirements of extruded and compression molded polytetrafluoroethylene (PTFE) rods and heavy-walled tubing manufactured from virgin or reprocessed PTFE resin. Covered here are three types of PTFE fluorocarbon materials as follows: Type I (premium), materials having maximum physical and electrical properties to meet rigid requirements; Type II (general purpose), materials having properties required of general electrical, mechanical, and chemical applications; and Type III, materials for noncritical chemical, electrical, and mechanical applications. These types are further subdivided into two grades, and even further into four classes as appropriate. Sampled specimens shall be appropriately tested on the following: workmanship and appearance (color, finish, and internal defects); specific gravity; tensile strength and elongation; dielectric strength; dimensional stability; and melting point.
SCOPE
1.1 This specification covers extruded polytetrafluoroethylene (PTFE) rod, heavy-walled tubing, and basic shapes manufactured from the PTFE resin of Specification D4894 and reprocessed PTFE resin (as defined in Guide D7209).  
1.2 The specification covers all sizes of rod, tubing, and basic shapes with a wall thickness of 1.6 mm (1/16 in.) or greater. These materials must be made wholly from PTFE and produced in accordance with good commercial ram extrusion practices.
Note 1: This specification and ISO/DIS 13000-1 (1997) and ISO/DIS 13000-2 (1997) differ in approach, however, data obtained using either are technically equivalent.
Note 2: For compression molded PTFE materials, see Specification D3294. Material that can be certified to Specification D3294 may be substituted for Specification D1710, however the reverse in not true.  
1.3 The values stated in SI units, as detailed in IEEE/ASTM SI 10 are to be regarded as the standard. The inch-pound units given in parentheses are provided for information only.  
1.4 The following precautionary caveat pertains to the test methods portion, Section 12, only 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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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