ASTM C613-23
(Test Method)Standard Test Method for Constituent Content of Composite Prepreg by Soxhlet Extraction
Standard Test Method for Constituent Content of Composite Prepreg by Soxhlet Extraction
SIGNIFICANCE AND USE
5.1 The prepreg volatiles content, matrix content, reinforcement content, and filler content of composite prepreg materials are used to control material manufacture and subsequent fabrication processes, and are key parameters in the specification and production of such materials, as well as in the fabrication of products made with such materials.
5.2 The extraction products resulting from this test method (the extract, the residue, or both) can be analyzed to assess chemical composition and degree of purity.
SCOPE
1.1 This test method covers a Soxhlet extraction procedure to determine the matrix content, reinforcement content, and filler content of composite material prepreg. Volatiles content, if appropriate, and required, is determined by means of Test Method D3530.
1.1.1 The reinforcement and filler must be substantially insoluble in the selected extraction reagent and any filler must be capable of being separated from the reinforcement by filtering the extraction residue.
1.1.2 Reinforcement and filler content test results are total reinforcement content and total filler content; hybrid material systems with more than one type of either reinforcement or filler cannot be distinguished.
1.2 This test method focuses on thermosetting matrix material systems for which the matrix may be extracted by an organic solvent. However, other, unspecified, reagents may be used with this test method to extract other matrix material types for the same purposes.
1.3 Alternate techniques for determining matrix and reinforcement content include Test Methods D3171 (matrix digestion), D2584 (matrix burn-off/ignition), and D3529 (matrix dissolution and ignition loss). Test Method D2584 is preferred for reinforcement materials, such as glass, quartz, or silica, that are unaffected by high-temperature environments.
1.4 The technical content of this standard has been stable since 1997 without significant objection from its stakeholders. As there is limited technical support for the maintenance of this standard, changes since that date have been limited to items required to retain consistency with other ASTM D30 Committee standards. The standard therefore should not be considered to include any significant changes in approach and practice since 1997. Future maintenance of the standard will only be in response to specific requests and performed only as technical support allows.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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. Specific precautionary statements are given in Section 9 and 7.2.3 and 8.2.1.
1.7 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.
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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: C613 − 23
Standard Test Method for
Constituent Content of Composite Prepreg by Soxhlet
1
Extraction
This standard is issued under the fixed designation C613; 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 since 1997. Future maintenance of the standard will only be in
response to specific requests and performed only as technical
1.1 This test method covers a Soxhlet extraction procedure
support allows.
to determine the matrix content, reinforcement content, and
1.5 The values stated in SI units are to be regarded as
filler content of composite material prepreg. Volatiles content,
standard. No other units of measurement are included in this
if appropriate, and required, is determined by means of Test
standard.
Method D3530.
1.1.1 The reinforcement and filler must be substantially 1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
insoluble in the selected extraction reagent and any filler must
be capable of being separated from the reinforcement by responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
filtering the extraction residue.
mine the applicability of regulatory limitations prior to use.
1.1.2 Reinforcement and filler content test results are total
Specific precautionary statements are given in Section 9 and
reinforcement content and total filler content; hybrid material
7.2.3 and 8.2.1.
systems with more than one type of either reinforcement or
1.7 This international standard was developed in accor-
filler cannot be distinguished.
dance with internationally recognized principles on standard-
1.2 This test method focuses on thermosetting matrix ma-
ization established in the Decision on Principles for the
terial systems for which the matrix may be extracted by an
Development of International Standards, Guides and Recom-
organic solvent. However, other, unspecified, reagents may be
mendations issued by the World Trade Organization Technical
used with this test method to extract other matrix material types
Barriers to Trade (TBT) Committee.
for the same purposes.
2. Referenced Documents
1.3 Alternate techniques for determining matrix and rein-
2
forcement content include Test Methods D3171 (matrix
2.1 ASTM Standards:
digestion), D2584 (matrix burn-off/ignition), and D3529 (ma-
D883 Terminology Relating to Plastics
trix dissolution and ignition loss). Test Method D2584 is
D2584 Test Method for Ignition Loss of Cured Reinforced
preferred for reinforcement materials, such as glass, quartz, or
Resins
silica, that are unaffected by high-temperature environments.
D3171 Test Methods for Constituent Content of Composite
Materials
1.4 The technical content of this standard has been stable
D3529 Test Methods for Constituent Content of Composite
since 1997 without significant objection from its stakeholders.
Prepreg
As there is limited technical support for the maintenance of this
D3530 Test Method for Volatiles Content of Composite
standard, changes since that date have been limited to items
Material Prepreg
required to retain consistency with other ASTM D30 Commit-
D3878 Terminology for Composite Materials
tee standards. The standard therefore should not be considered
E122 Practice for Calculating Sample Size to Estimate, With
to include any significant changes in approach and practice
Specified Precision, the Average for a Characteristic of a
Lot or Process
1
This test method is under the jurisdiction of ASTM Committee D30 on
Composite Materials and is the direct responsibility of Subcommittee D30.03 on
2
Constituent/Precursor Properties. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 15, 2023. Published November 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1967. Last previous edition approved in 2019 as C613 – 19. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0613-23. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C613 − 23
E177 Practice for Use of the Terms Precision and Bias in c—percent reinforcement mass chang
...
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: C613 − 19 C613 − 23
Standard Test Method for
Constituent Content of Composite Prepreg by Soxhlet
1
Extraction
This standard is issued under the fixed designation C613; 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 test method covers a Soxhlet extraction procedure to determine the matrix content, reinforcement content, and filler
content of composite material prepreg. Volatiles content, if appropriate, and required, is determined by means of Test Method
D3530.
1.1.1 The reinforcement and filler must be substantially insoluble in the selected extraction reagent and any filler must be capable
of being separated from the reinforcement by filtering the extraction residue.
1.1.2 Reinforcement and filler content test results are total reinforcement content and total filler content; hybrid material systems
with more than one type of either reinforcement or filler cannot be distinguished.
1.2 This test method focuses on thermosetting matrix material systems for which the matrix may be extracted by an organic
solvent. However, other, unspecified, reagents may be used with this test method to extract other matrix material types for the same
purposes.
1.3 Alternate techniques for determining matrix and reinforcement content include Test Methods D3171 (matrix digestion), D2584
(matrix burn-off/ignition), and D3529 (matrix dissolution and ignition loss). Test Method D2584 is preferred for reinforcement
materials, such as glass, quartz, or silica, that are unaffected by high-temperature environments.
1.4 The technical content of this standard has been stable since 1997 without significant objection from its stakeholders. As there
is limited technical support for the maintenance of this standard, changes since that date have been limited to items required to
retain consistency with other ASTM D30 Committee standards. The standard therefore should not be considered to include any
significant changes in approach and practice since 1997. Future maintenance of the standard will only be in response to specific
requests and performed only as technical support allows.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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. Specific precautionary statements are given in Section 9 and 7.2.3 and 8.2.1.
1
This test method is under the jurisdiction of ASTM Committee D30 on Composite Materials and is the direct responsibility of Subcommittee D30.03 on
Constituent/Precursor Properties.
Current edition approved April 15, 2019Nov. 15, 2023. Published May 2019November 2023. Originally approved in 1967. Last previous edition approved in 20142019
as C613 – 14.C613 – 19. DOI: 10.1520/C0613-19.10.1520/C0613-23.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C613 − 23
1.7 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:
D883 Terminology Relating to Plastics
D2584 Test Method for Ignition Loss of Cured Reinforced Resins
D3171 Test Methods for Constituent Content of Composite Materials
D3529 Test Methods for Constituent Content of Composite Prepreg
D3530 Test Method for Volatiles Content of Composite Material Prepreg
D3878 Terminology for Composite Materials
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or
Process
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
3
2.2 NFPA Standard:
NFPA 86 Standard for O
...
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