ASTM D6865-17

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: D6865 − 11 D6865 − 17
Standard Classification System and Basis for Specifications for
Acrylonitrile–Styrene–Acrylate (ASA) and
Acrylonitrile–EPDM–Styrene (AES) Plastics and Alloys
Molding and Extrusion Materials
This standard is issued under the fixed designation D6865; 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.
1. Scope*
1.1 This classification system covers ASA and AES materials, and ASA and AES alloys suitable for injection molding and
extrusion. This classification system does not cover recycled ASA and AES materials, and recycled ASA and AES alloys.
1.2 The 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 the suffixes as given
in Section 5.
1.3 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 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.
1.4 The following precautionary 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 and health practices and determine the applicability of regulatory requirements
prior to use.
NOTE 1—This classification system and ISO 6402 cover and ISO 19065 address the same subject matter but are not technically equivalent.differ in
technical content.
2. Referenced Documents
2.1 ASTM Standards:
D883 Terminology Relating to Plastics
D1600 Terminology for Abbreviated Terms Relating to Plastics
D3892 Practice for Packaging/Packing of Plastics
D4000 Classification System for Specifying Plastic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
2.2 ISO Standards:
ISO 179-1 Plastics—Determination of Charpy Impact Strength—Part 1: Non-Instrumented Impact Test
ISO 291 Plastics—Standard Atmospheres for Conditioning and Testing
ISO 294-1 Plastics—Injection Moulding Test Specimens of Thermoplastics Materials—Part 1: General Principles, and
Moulding of Multipurpose and Bar Test Specimens
ISO 306 Plastics—Thermoplastic Materials— Determination of Vicat Softening Temperature (VST)
ISO 527 Plastics—Determination of Tensile Properties—Part 1: General Principles and —Part 2: Test Conditions for Moulding
and Extrusion Materials
This classification 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 April 1, 2011March 1, 2017. Published April 2011March 2017. Originally approved in 2004. Last previous edition approved in 20042011 as
D6865 - 04.D6865 - 11. DOI: 10.1520/D6865-11.10.1520/D6865-17.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*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
D6865 − 17
ISO 1133 Plastics—Determination of the Melt Mass Flow Rate (MFR) and the Melt Volume Flow Rate (MVR) of
Thermoplastics
ISO 3451-1 Plastics—Determination of Ash—Part 1: General Methods
ISO 6402 Plastics—Impact-Resistant Acrylonitrile/Styrene (ASA, AES, ACS) Moulding and Extrusion materials, Excluding
Butadiene-Modified Materials—Part 1: Designation System and Basis for Specification and —Part 2: Preparation of Test
Specimens and Determination of Properties
ISO 19065-1 Plastics—Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and
acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials—Part 1: Designation system and
basis for specifications
3. Terminology
3.1 The terminology used in this classification system is in accordance with Terminologies D883 and D1600.
4. Classification
4.1 ASA and AES materials, and ASA and AES alloys are classified into groups according to their composition. These groups
are subdivided into classes and grades as shown in Table ASA/AES.
NOTE 2—An example of this classification system is given as follows:
The designation ASA0111 indicates the following:
ASA = acrylonitrile–styrene–acrylate, as found in Terminology
D1600,
01 = injection molding resin (group),
1 = medium impact (class), and
1 = requirements given in Table ASA/AES (grade).
4.1.1 To facilitate incorporation of future or special materials, the “other” category for class (0), and grade (0) is shown in Table
ASA/AES. The basic properties of these materials are obtained from Table A, B, or C as they apply.
4.2 Reinforced, filled, and lubricated versions of ASA and AES materials, and ASA and AES alloys that are not in Table
ASA/AES are classified in accordance with Table A, B, or C. Table ASA/AES is used to specify the group of the material and Table
A, B, or C is used to specify the property requirements after the addition of reinforcements, pigments, fillers, or lubricants at the
nominal level indicated (see 4.2.1).
4.2.1 Reinforced versions of the basic materials are identified by a single letter that indicates the reinforcement used and two
digits that indicate the nominal quantity in percent by weight. Thus, a letter designation G for glass-reinforced for percent of
reinforcement, G33, specifies a filled material with a nominal glass level of 33 %. The reinforcement letter designations and
associated tolerance levels are shown in Table 1the following table::
Symbol Material Tolerance
C carbon and graphite fiber reinforced ±2%
G glass-reinforced ±2%
L lubricants (such as PTFE, graphite, depends upon material and
silicone, and molybdenum disulfide) process—to be specified
M mineral-reinforced ±2%
R combinations of reinforcements or ±3% for total reinforcement
fillers, or both level
NOTE 3—This part of the classification system uses the percent of reinforcements or additives, or both, in the callout of the modified basic material.
The types and percentages of reinforcements and additives should beare sometimes shown on the supplier’s technical data sheet unless they are
proprietary in nature. sheet. If necessary, additional callout of these reinforcements and additives can be accomplished by use of the suffix part of the
system (see Section 5).
4.2.2 Specific requirements for reinforced, filled, or lubricated ASA and AES materials, and ASA and AES alloys shall be shown
by a six-character designation. The designation will consist of the letter “A,” “B,” or “C” and the five digits comprising the cell
numbers for the property requirements in the order as they appear in Tables A, B, or C. Although the values listed are necessary
to include the range of properties available in existing materials, not every possible combination of the properties exists or can be
obtained.
TABLE 1 Reinforcement-Filler and Tolerances
Symbol Material Tolerance
C carbon and graphite fiber reinforced ±2%
G glass-reinforced ±2%
L lubricants (such as PTFE, graphite, depends upon material and
silicone, and molybdenum disulfide) process—to be specified
M mineral-reinforced ±2%
R combinations of reinforcements or ±3% for total reinforcement
fillers, or both level
D6865 − 17
4.2.3 When the grade of the basic material is not known, or is not important, the use of the “0” grade classification shall be used
for the reinforced materials in this system.
NOTE 4—An example of this classification for a reinforced ASA/AES material is given as follows. The designation ASA 0120G30A55130 would
indicate the following material requirements:
ASA 0120 = Acrylonitrile-styrene-acrylate, molding resin,
high impact, from Table ASA/AES,
G30 = Glass reinforced at 30 % nominal level,
A = Cell Table A property requirements,
5 = 80 MPa Tensile Stress at Yield, min,
5 = 7500 MPa Modulus of Elasticity in Tension, min,
5 = 6000 MPa Modulus of Elasticity in Tension, min,
1 = 4 kJ/m Charpy Impact Strength of Notched Specimens, min,
3 = 90°C Vicat softening temperature, min, and
3 = 80°C Vicat softening temperature, min, and
0 = unspecified
If no properties are specified, the designation would be ASA 0120G30A00000.
5. Suffixes
5.1 When additional requirements are needed that are not covered by the basic requirements or cell-table requirements, they
shall be indicated through the use of suffixes.
5.2 A list of suffixes can be found in Classification System D4000 (Table 3) and are to be used for additional requirements as
appropriate. Additional suffixes will be added to that standard as test methods and requirements are developed and requested.
6. General Requirements
6.1 Basic requirements from the property tables or cell tables are always in effect unless superseded by specific suffix
requirements, which always take precedence.
6.2 The plastics composition shall be uniform and shall conform to the requirements specified herein.
7. Detail Requirements
7.1 The materials shall conform to the requirements in Tables ASA/AES, A, B, C, and suffix requirements as they apply.
7.2 For purposes of determining conformance, all specified limits for a specification (line callout) based on this classification
system are absolute limits, as defined in Practice E29.
7.2.1 With the absolute method, an observed value or a calculated value is not rounded, but is to be compared directly with the
limiting value. Conformance or nonconformance is based on this comparison.
8.
...