ASTM D706-20

Standard Classification System and Basis for Specifications for Cellulose Acetate Molding and Extrusion Compounds (CA)

SCOPE
1.1 This classification system covers requirements for cellulose acetate thermoplastic compounds plasticized with either diethyl phthalate or dimethyl phthalate and are suitable for injection molding and extrusion. These compounds have an acetyl content between 39 and 40 %. It does not include materials compounded for special application. Cellulosic plastic materials, being thermoplastic, are reprocessable and recyclable. This classification system allows for the use of those cellulosic materials, provided that all specific requirements of this classification system are met.  
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 specified by using the 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 can be made by those having expertise in the plastic field only after careful consideration of the design and performance required of the part, environment to which it will be exposed, fabrication process to be employed, costs involved, and inherent properties of the material other than those covered by this classification system.  
1.4 The values stated in SI units are to be regarded as standard.  
1.5 The following safety hazards 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: There is no known ISO equivalent to this standard.  
1.6 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.

General Information

• Status: Published
• Publication Date: 31-Jul-2020
• ICS: 83.080.20 - Thermoplastic materials
• ICS: 83.140.99 - Other rubber and plastics products
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Relations

• Referred By: ASTM D4000-23 - Standard Classification System for Specifying Plastic Materials
• Effective Date: 01-Aug-2020

Standards Content (Sample)

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.
Designation:D706 −20
Standard Classification System and Basis for Specifications for
1
Cellulose Acetate Molding and Extrusion Compounds (CA)
This standard is issued under the fixed designation D706; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
NOTE 1—There is no known ISO equivalent to this standard.
1. Scope*
1.6 This international standard was developed in accor-
1.1 This classification system covers requirements for cel-
dance with internationally recognized principles on standard-
lulose acetate thermoplastic compounds plasticized with either
ization established in the Decision on Principles for the
diethyl phthalate or dimethyl phthalate and are suitable for
Development of International Standards, Guides and Recom-
injection molding and extrusion. These compounds have an
mendations issued by the World Trade Organization Technical
acetyl content between 39 and 40 %. It does not include
Barriers to Trade (TBT) Committee.
materials compounded for special application. Cellulosic plas-
tic materials, being thermoplastic, are reprocessable and recy-
2. Referenced Documents
clable. This classification system allows for the use of those
2
2.1 ASTM Standards:
cellulosic materials, provided that all specific requirements of
D256 Test Methods for Determining the Izod Pendulum
this classification system are met.
Impact Resistance of Plastics
1.2 The properties included in this classification system are
D570 Test Method for Water Absorption of Plastics
those required to identify the compositions covered. Other
D618 Practice for Conditioning Plastics for Testing
requirements necessary to identify particular characteristics
D635 Test Method for Rate of Burning and/or Extent and
important to specialized applications are specified by using the
Time of Burning of Plastics in a Horizontal Position
suffixes as given in Section 5.
D638 Test Method for Tensile Properties of Plastics
1.3 This classification system and subsequent line call out
D790 Test Methods for Flexural Properties of Unreinforced
(specification) are intended to provide a means of calling out
and Reinforced Plastics and Electrical Insulating Materi-
plastic materials used in the fabrication of end items or parts.
als
It is not intended for the selection of materials. Material
D792 Test Methods for Density and Specific Gravity (Rela-
selection can be made by those having expertise in the plastic
tive Density) of Plastics by Displacement
field only after careful consideration of the design and perfor-
D883 Terminology Relating to Plastics
mance required of the part, environment to which it will be
D1003 Test Method for Haze and Luminous Transmittance
exposed, fabrication process to be employed, costs involved,
of Transparent Plastics
andinherentpropertiesofthematerialotherthanthosecovered
D1600 Terminology forAbbreviatedTerms Relating to Plas-
by this classification system.
tics
D1729 Practice for Visual Appraisal of Colors and Color
1.4 The values stated in SI units are to be regarded as
Differences of Diffusely-Illuminated Opaque Materials
standard.
D3641 Practice for Injection Molding Test Specimens of
1.5 The following safety hazards caveat pertains only to the
Thermoplastic Molding and Extrusion Materials
test method portion, Section 11, of this classification system.
D3892 Practice for Packaging/Packing of Plastics
This standard does not purport to address all of the safety
D4000 Classification System for Specifying Plastic Materi-
concerns, if any, associated with its use. It is the responsibility
als
of the user of this standard to establish appropriate safety,
D5740 Guide for Writing Material Standards in the Classi-
health, and environmental practices and determine the appli-
fication Format
cability of regulatory limitations prior to use.
E308 PracticeforComputingtheColorsofObjectsbyUsing
the CIE System
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, 2020. Published August 2020. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1943. Last previous edition approved in 2015 as D706 - 15. DOI: Standards volume information, refer to the standard’s Docu
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D706 − 15 D706 − 20
Standard Classification System and Basis for Specifications for
1
Cellulose Acetate Molding and Extrusion Compounds (CA)
This standard is issued under the fixed designation D706; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This classification system covers requirements for cellulose acetate thermoplastic compounds plasticized with either diethyl
phthalate or dimethyl phthalate and are suitable for injection molding and extrusion. These compounds have an acetyl content
between 39 and 40 %. It does not include materials compounded for special application. Cellulosic plastic materials, being
thermoplastic, are reprocessable and recyclable. This classification system allows for the use of those cellulosic materials, provided
that all specific requirements of this classification system are met.
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 specified by using the 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 can be
made by those having expertise in the plastic field only after careful consideration of the design and performance required of the
part, environment to which it will be exposed, fabrication process to be employed, costs involved, and inherent properties of the
material other than those covered by this classification system.
1.4 The values stated in SI units are to be regarded as standard.
1.5 The following safety hazards 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 safety, health, and healthenvironmental practices and determine the applicability
of regulatory limitations prior to use.
NOTE 1—There is no known ISO equivalent to this standard.
NOTE 1—There is no known ISO equivalent to this standard.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D256 Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics
D570 Test Method for Water Absorption of Plastics
D618 Practice for Conditioning Plastics for Testing
D635 Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position
D638 Test Method for Tensile Properties of Plastics
D790 Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D883 Terminology Relating to Plastics
1
This classification system is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
Materials.
Current edition approved May 1, 2015Aug. 1, 2020. Published June 2015August 2020. Originally approved in 1943. Last previous edition approved in 20092015 as
D706 - 09.D706 - 15. DOI: 10.1520/D0706-15.10.1520/D0706-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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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D706 − 20
D1003 Test Method for Haze and Lumi
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