• There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

ASTM D 6338 : 2017

Current

Current

The latest, up-to-date edition.

Standard Classification System for Highly Crosslinked Thermoplastic Vulcanizates (HCTPV) Based on ASTM Standard Test Methods

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-08-2017

1.1This classification system covers highly crosslinked thermoplastic vulcanizates (HCTPV) for extrusion, molding and other fabrication methods. Highly crosslinked thermoplastic vulcanizates (HCTPV) are thermoplastic elastomers (TPE) consisting of two or more polymer systems at least one of which is rubbery and highly (>95 %) crosslinked and at least one of which is thermoplastic, with each system having its own phase. The thermoplastic phase will tend to be continuous and the rubbery phase discontinuous. The high level of crosslinking and ultrafine particle size (ca 1 μm diameter) of the rubbery phase give rise to properties more closely approaching those of conventional thermoset rubber, when compared to the same thermoplastic/rubbery polymer composition with a lower level (95 %) of crosslinking. The HCTPV polymer compositions may contain fillers, reinforcing agents, plasticizers, resins, antidegradants, colorants and other beneficial constituents. Recycled HCTPV are not covered in this classification system.

1.2The properties included in this standard 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.

1.3This 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 can be made by those having expertise in the plastic field only 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.

1.4As given in IEEE/ASTM SI-10, values in SI units are to be regarded as standard.

Note 1:There is no known ISO equivalent to this standard.

1.5This standard is based on testing completed in accordance with ASTM standard test methods.

1.6The following safety hazards 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, health and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7This 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.

Committee
D 20
DocumentType
Standard
Pages
6
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM D 6924 : 2003 : R2017 Standard Specification for Preformed Thermoplastic Vulcanizate Elastomeric Joint Seals for Bridges
ASTM D 4000 : 2016 Standard Classification System for Specifying Plastic Materials

ASTM D 1566 : 2004 : REV A Standard Terminology Relating to Rubber
ASTM D 2240 : 2000 Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 3182 : 2015 Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 471 : 2016 : REV A Standard Test Method for Rubber Property—Effect of Liquids
ASTM D 1566 : 2009 Standard Terminology Relating to Rubber
ASTM D 883 : 2023 Standard Terminology Relating to Plastics
ASTM D 1566 : 2006 Standard Terminology Relating to Rubber
ASTM D 1566 : 2008 : REV A Standard Terminology Relating to Rubber
ASTM D 1566 : 2021 : REV A Standard Terminology Relating to Rubber
ASTM D 4000 : 2013 Standard Classification System for Specifying Plastic Materials
ASTM E 29 : 2013 : R2019 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM D 3892 : 2015 : R2020 Standard Practice for Packaging/Packing of Plastics
ASTM D 1434 : 1982 : R2003 Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting
ASTM D 3182 : 2007 : R2012 Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 1566 : 2005 Standard Terminology Relating to Rubber
ASTM D 4000 : 2003 : REV A Standard Classification System for Specifying Plastic Materials
ASTM D 4000 : 2000 : REV A Standard Classification System for Specifying Plastic Materials
ASTM D 883 : 2024 Standard Terminology Relating to Plastics
ASTM D 4000 : 2012 Standard Classification System for Specifying Plastic Materials
ASTM D 1566 : 2002 : REV A Standard Terminology Relating to Rubber
ASTM D 4000 : 2009 Standard Classification System for Specifying Plastic Materials
ASTM E 29 : 2002 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM D 3892 : 1993 : R2003 Standard Practice for Packaging/Packing of Plastics
ASTM D 3892 : 2015 Standard Practice for Packaging/Packing of Plastics
ASTM D 1566 : 2007 Standard Terminology Relating to Rubber
ASTM D 3182 : 1989 : R2006 Standard Practice for Rubber-Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 1566 : 2019 Standard Terminology Relating to Rubber
ASTM D 2240 : 2004 Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 1566 : 2015 Standard Terminology Relating to Rubber
ASTM D 4000 : 2011 Standard Classification System for Specifying Plastic Materials
ASTM D 883 : 2022 Standard Terminology Relating to Plastics
ASTM D 883 : 2020 : REV B Standard Terminology Relating to Plastics
ASTM D 1566 : 2008 Standard Terminology Relating to Rubber
ASTM D 3892 : 1993 : R1998 Standard Practice for Packaging/Packing of Plastics
ASTM D 3182 : 1989 : R2001 : EDT 1 Standard Practice for Rubber-Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 1566 : 2005 : REV A Standard Terminology Relating to Rubber
ASTM D 412 : 2016 : EDT 1 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
ASTM D 4000 : 2004 : EDT 1 Standard Classification System for Specifying Plastic Materials
ASTM D 4000 : 2023 Standard Classification System for Specifying Plastic Materials
ASTM D 2240 : 2004 : EDT 1 Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 1566 : 2006 : REV A Standard Terminology Relating to Rubber
ASTM D 1566 : 2003 : REV A Standard Terminology Relating to Rubber
ASTM D 471 : 2016 : REV A : R2021 Standard Test Method for Rubber Property—Effect of Liquids
ASTM D 4000 : 2009 : REV B Standard Classification System for Specifying Plastic Materials
ASTM D 4000 : 2000 Standard Classification System for Specifying Plastic Materials
ASTM D 1566 : 2006 : REV B Standard Terminology Relating to Rubber
ASTM D 4000 : 2010 : REV A Standard Classification System for Specifying Plastic Materials
ASTM D 412 : 2016 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
ASTM D 4000 : 2007 Standard Classification System for Specifying Plastic Materials
ASTM D 1566 : 2005 : REV B Standard Terminology Relating to Rubber
ASTM D 4000 : 2009 : REV A Standard Classification System for Specifying Plastic Materials
ASTM D 4000 : 2001 Standard Classification System for Specifying Plastic Materials
ASTM D 3182 : 2007 Standard Practice for Rubber-Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 1566 : 2011 Standard Terminology Relating to Rubber
ASTM D 4000 : 2008 Standard Classification System for Specifying Plastic Materials
ASTM D 638 : 2014 Standard Test Method for Tensile Properties of Plastics
ASTM D 2240 : 2015 : R2021 Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 1566 : 2021 Standard Terminology Relating to Rubber
ASTM D 1566 : 2000 : REV B Standard Terminology Relating to Rubber
ASTM D 2240 : 2002 Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 6869 : 2017 Standard Test Method for Coulometric and Volumetric Determination of Moisture in Plastics Using the Karl Fischer Reaction (the Reaction of Iodine with Water)
ASTM D 1566 : 2014 Standard Terminology Relating to Rubber
ASTM D 6869 : 2003 : R2011 Standard Test Method for Coulometric and Volumetric Determination of Moisture in Plastics Using the Karl Fischer Reaction (the Reaction of Iodine with Water)
ASTM D 1434 : 1982 : R2015 : EDT 1 Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting
ASTM D 618 : 2013 Standard Practice for Conditioning Plastics for Testing
ASTM D 2240 : 2015 Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 2240 : 2003 Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 4000 : 2001 : REV A : EDT 1 Standard Classification System for Specifying Plastic Materials
ASTM D 1566 : 2010 Standard Terminology Relating to Rubber
ASTM D 4000 : 2004 Standard Classification System for Specifying Plastic Materials
ASTM D 2240 : 2002 : REV B Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 1434 : 1982 : R2009 : EDT 1 Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting
ASTM D 3182 : 1989 : R2001 Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 2240 : 2015 : EDT 1 Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 1566 : 2003 Standard Terminology Relating to Rubber
ASTM D 412 : 2016 : R2021 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
ASTM D 3892 : 1993 : R2009 Standard Practice for Packaging/Packing of Plastics
ASTM D 3182 : 2021 Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 4000 : 2010 Standard Classification System for Specifying Plastic Materials
ASTM D 1566 : 2000 Standard Terminology Relating to Rubber
ASTM D 2240 : 2005 Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 3182 : 1989 : R1994 Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 1434 : 2023 Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting
ASTM D 2240 : 2005 : R2010 Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 1566 : 2020 Standard Terminology Relating to Rubber
ASTM D 3182 : 2016 Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 1566 : 2007 : REV A Standard Terminology Relating to Rubber
ASTM D 3182 : 2021 : REV A Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 1566 : 2005 : REV C Standard Terminology Relating to Rubber
ASTM D 4000 : 2003 Standard Classification System for Specifying Plastic Materials
ASTM D 2240 : 2002 : REV A Standard Test Method for Rubber Property—Durometer Hardness
ASTM D 4000 : 2020 Standard Classification System for Specifying Plastic Materials
ASTM D 1566 : 2010 : EDT 1 Standard Terminology Relating to Rubber
ASTM D 6869 : 2003 Standard Test Method for Coulometric and Volumetric Determination of Moisture in Plastics Using the Karl Fischer Reaction (the Reaction of Iodine with Water)
ASTM D 618 : 2021 Standard Practice for Conditioning Plastics for Testing
ASTM D 1434 : 1982 : R1998 Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting
ASTM D 638 : 2022 Standard Test Method for Tensile Properties of Plastics
ASTM D 3182 : 2015 : REV A Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 1566 : 2008 : REV B Standard Terminology Relating to Rubber
ASTM E 29 : 2022 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

View more information
£53.79
Excluding VAT

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.