ASTM D706-05

Standard Specification for Cellulose Acetate Molding and Extrusion Compounds

SCOPE
1.1 This specification 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 specification allows for the use of those cellulosic materials, provided that all specific requirements of this specification are met.
1.2 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.
1.3 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 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 , 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—There is no equivalent or similar ISO standard.

General Information

• Status: Historical
• Publication Date: 30-Jun-2005
• 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

• Replaces: ASTM D706-98 - Standard Specification for Cellulose Acetate Molding and Extrusion Compounds
• Effective Date: 01-Jul-2005
• Replaced By: ASTM D706-09 - Standard Classification System and Basis for Specifications for Cellulose Acetate Molding and Extrusion Compounds
• Effective Date: 01-Nov-2009
• Referred By: ASTM D4000-23 - Standard Classification System for Specifying Plastic Materials
• Effective Date: 01-Jul-2005

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: D706 – 05
Standard Specification for
1
Cellulose Acetate Molding and Extrusion Compounds
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 Department of Defense.
NOTE 1—There is no equivalent or similar ISO standard.
1. Scope*
1.1 This specification covers requirements for cellulose
2. Referenced Documents
acetate thermoplastic compounds plasticized with either di-
2
2.1 ASTM Standards:
ethyl phthalate or dimethyl phthalate and are suitable for
D256 Test Methods for Determining the Izod Pendulum
injection molding and extrusion. These compounds have an
Impact Resistance of Plastics
acetyl content between 39 and 40 %. It does not include
D570 Test Method for Water Absorption of Plastics
materials compounded for special application. Cellulosic plas-
D618 Practice for Conditioning Plastics for Testing
tic materials, being thermoplastic, are reprocessable and recy-
D635 Test Method for Rate of Burning and/or Extent and
clable. This specification allows for the use of those cellulosic
Time of Burning of Plastics in a Horizontal Position
materials, provided that all specific requirements of this speci-
D638 Test Method for Tensile Properties of Plastics
fication are met.
D790 Test Methods for Flexural Properties of Unreinforced
1.2 The properties included in this specification are those
and Reinforced Plastics and Electrical Insulating Materials
required to identify the compositions covered. There may be
D792 Test Methods for Density and Specific Gravity (Rela-
other requirements necessary to identify particular character-
tive Density) of Plastics by Displacement
istics important to specialized applications. These may be
D883 Terminology Relating to Plastics
specified by using the suffixes as given in Section 5.
D1003 Test Method for Haze and Luminous Transmittance
1.3 This classification system and subsequent line call out
of Transparent Plastics
(specification) are intended to provide a means of calling out
D1600 Terminology for Abbreviated Terms Relating to
plastic materials used in the fabrication of end items or parts.
Plastics
It is not intended for the selection of materials. Material
D1729 Practice for Visual Appraisal of Colors and Color
selection should be made by those having expertise in the
Differences of Diffusely-Illuminated Opaque Materials
plastic field after careful consideration of the design and
D3641 Practice for Injection Molding Test Specimens of
performance required of the part, environment to which it will
Thermoplastic Molding and Extrusion Materials
be exposed, fabrication process to be employed, costs in-
D3892 Practice for Packaging/Packing of Plastics
volved, and inherent properties of the material other than those
D4000 Classification System for Specifying Plastic Materi-
covered by this classification system.
als
1.4 The values stated in SI units are to be regarded as
E308 Practice for Computing the Colors of Objects by
standard.
Using the CIE System
1.5 The following safety hazards caveat pertains only to the
test method portion, Section 11, of this specification. This
3. Terminology
standard does not purport to address all of the safety concerns,
3.1 Definitions—The terminology used in this specification
if any, associated with its use. It is the responsibility of the user
is in accordance with Terminologies D883 and D1600.
of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita-
4. Classification
tions prior to use.
4.1 This specification covers the following groups, classes,
and grades (see Table CA):
1
This specification is under the jurisdiction of ASTM Committee D20 on
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 July 1, 2005. Published July 2005. Originally approved contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
in 1943. Last previous edition approved in 1998 as D706 - 98. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
D0706-05. 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 – 05
4.1.1 Group 1—High impact strength, diethyl phthalate 6.2 These materials may co
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