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ASTM D707-15(2023)

(Specification)

Standard Classification System and Basis for Specification for Cellulose Acetate Butyrate Molding and Extrusion Compounds (CAB)

Standard Classification System and Basis for Specification for Cellulose Acetate Butyrate Molding and Extrusion Compounds (CAB)

ABSTRACT
This specification covers requirements for plasticized cellulose acetate butyrate thermoplastic compounds suitable for injection molding and extrusion. These compounds have a butyryl content less than 38 % and an acetyl content less than 15 % and may or may not contain dyes and pigments. This specification does not include special materials compounded for special applications. 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. Test specimens of the thermoplastic compounds shall conform to the prescribed specific gravity, tensile stress at yield, flexural modulus, Izod impact strength, water absorption and weight loss on heating. The materials shall also be subject to color-visual, color-quantitative, and plasticizer content analysis.
SCOPE
1.1 This classification system covers requirements for plasticized cellulose acetate butyrate thermoplastic compounds suitable for injection molding and extrusion. These compounds have a butyryl content less than 38 % and an acetyl content less than 15 % and can contain dyes and pigments. This classification system does not include special materials compounded for special applications. 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 12, 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
14-Mar-2023
ICS
83.080.20 - Thermoplastic materials
83.140.99 - Other rubber and plastics products
Technical Committee
D20 - Plastics
Drafting Committee
D20.15 - Thermoplastic Materials
Current Stage
Ref Project

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ASTM D707-15(2023) - Standard Classification System and Basis for Specification for Cellulose Acetate Butyrate Molding and Extrusion Compounds (CAB)ASTM D707-15(2023) - Standard Classification System and Basis for Specification for Cellulose Acetate Butyrate Molding and Extrusion Compounds (CAB)
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ASTM D707-15(2023) - Standard Classification System and Basis for Specification for Cellulose Acetate Butyrate Molding and Extrusion Compounds (CAB)
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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: D707 − 15 (Reapproved 2023)
Standard Classification System and Basis for Specification for
Cellulose Acetate Butyrate Molding and Extrusion
1
Compounds (CAB)
This standard is issued under the fixed designation D707; 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* of the user of this standard to establish appropriate safety,
health, and environmental practices and determine the appli-
1.1 This classification system covers requirements for plas-
cability of regulatory limitations prior to use.
ticized cellulose acetate butyrate thermoplastic compounds
suitable for injection molding and extrusion. These compounds
NOTE 1—There is no known ISO equivalent to this standard.
have a butyryl content less than 38 % and an acetyl content less
1.6 This international standard was developed in accor-
than 15 % and can contain dyes and pigments. This classifica-
dance with internationally recognized principles on standard-
tion system does not include special materials compounded for
ization established in the Decision on Principles for the
special applications. Cellulosic plastic materials, being
Development of International Standards, Guides and Recom-
thermoplastic, are reprocessable and recyclable. This classifi-
mendations issued by the World Trade Organization Technical
cation system allows for the use of those cellulosic materials,
Barriers to Trade (TBT) Committee.
provided that all specific requirements of this classification
system are met.
2. Referenced Documents
2
1.2 The properties included in this classification system are
2.1 ASTM Standards:
those required to identify the compositions covered. Other
D149 Test Method for Dielectric Breakdown Voltage and
requirements necessary to identify particular characteristics
Dielectric Strength of Solid Electrical Insulating Materials
important to specialized applications are specified by using the
at Commercial Power Frequencies
suffixes as given in Section 5.
D256 Test Methods for Determining the Izod Pendulum
Impact Resistance of Plastics
1.3 This classification system and subsequent line call out
(specification) are intended to provide a means of calling out D257 Test Methods for DC Resistance or Conductance of
Insulating Materials
plastic materials used in the fabrication of end items or parts.
It is not intended for the selection of materials. Material D570 Test Method for Water Absorption of Plastics
D618 Practice for Conditioning Plastics for Testing
selection can be made by those having expertise in the plastic
field only after careful consideration of the design and perfor- D635 Test Method for Rate of Burning and/or Extent and
Time of Burning of Plastics in a Horizontal Position
mance required of the part, environment to which it will be
exposed, fabrication process to be employed, costs involved, D638 Test Method for Tensile Properties of Plastics
D790 Test Methods for Flexural Properties of Unreinforced
and inherent properties of the material other than those covered
and Reinforced Plastics and Electrical Insulating Materi-
by this classification system.
als
1.4 The values stated in SI units are to be regarded as
D792 Test Methods for Density and Specific Gravity (Rela-
standard.
tive Density) of Plastics by Displacement
1.5 The following safety hazards caveat pertains only to the
D883 Terminology Relating to Plastics
test method portion, Section 12, of this classification system.
D1003 Test Method for Haze and Luminous Transmittance
This standard does not purport to address all of the safety
of Transparent Plastics
concerns, if any, associated with its use. It is the responsibility
D1600 Terminology for Abbreviated Terms Relating to Plas-
tics
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
2
Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 15, 2023. Published March 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1943. Last previous edition approved in 2015 as D707 - 15. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D0707-15R23. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © AS
...

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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.  
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SCOPE
1.1 This specification2 covers a group of general requirements that, unless otherwise specified in the purchase order or in an individual specification, shall apply to rolled steel plate, sheet, and strip, under each of the following specifications issued by ASTM: Specifications A240/A240M, A263, A264, A265, A666, A693, A793, and A895.  
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