ASTM D3529-16

Standard Test Methods for Constituent Content of Composite Prepreg

SIGNIFICANCE AND USE
5.1 This test method can be used to obtain the fiber content, fiber areal weight, matrix content or matrix solids content. Knowledge of these results is useful in specifying material systems and in developing optimum manufacturing processes. Where volatiles content is consistent and not critical to process, matrix content shall be used.  
5.2 This test method is limited to reinforcement constituents that do not change mass upon exposure to the matrix removal procedure and limited to matrix constituents that are fully removed by the matrix removal procedure. In the event of experiencing either limitation, an agreement should be reached with the end-user as to how to proceed.
SCOPE
1.1 This test method covers the determination of the fiber content, fiber areal weight, matrix solids content and matrix content of composite material prepregs. Optionally, the matrix solids content can also be determined after a volatiles content has been established. Volatiles content, if appropriate and required, is determined by means of Test Method D3530.  
1.2 Procedure A of this test method applies to composite prepreg of primarily thermosetting matrices that can be extracted in organic solvent. The reinforcement and filler must be substantially insoluble in the selected extraction reagent. This procedure may also be used for the same purposes to extract other matrix material types.  
1.3 Procedure B of this test method uses ignition loss of a composite prepreg matrix and applies to organic matrix composite systems containing reinforcing fibers that do not change mass when exposed to the matrix combustion method.  
1.4 This test method assumes a two-part material system (plus volatiles) and does not distinguish between hybrid reinforcements or matrices. Use with hybrid composites is limited to determination of total reinforcement or total matrix content.  
1.5 Matrix solids determination for Procedures A or B uses Test Method D3530 to determine volatiles content.  
1.6 Alternate techniques for determining constituent content include Test Methods C613 (resin content by Soxhlet extraction) and D3171 (used principally for consolidated laminates).  
1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.8 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. Specific precautionary information is given in Sections 8 and 9.

General Information

• Status: Historical
• Publication Date: 31-Oct-2016
• ICS: 83.120 - Reinforced plastics
• Technical Committee: D30 - Composite Materials
• Drafting Committee: D30.03 - Constituent/Precursor Properties

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: D3529 − 16
Standard Test Methods for
1
Constituent Content of Composite Prepreg
This standard is issued under the fixed designation D3529; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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 bility of regulatory limitations prior to use. Specific precau-
tionary information is given in Sections 8 and 9.
1.1 This test method covers the determination of the fiber
content, fiber areal weight, matrix solids content and matrix
2. Referenced Documents
content of composite material prepregs. Optionally, the matrix
2
2.1 ASTM Standards:
solids content can also be determined after a volatiles content
C613Test Method for Constituent Content of Composite
has been established. Volatiles content, if appropriate and
Prepreg by Soxhlet Extraction
required, is determined by means of Test Method D3530.
D883Terminology Relating to Plastics
1.2 Procedure A of this test method applies to composite
D3171Test Methods for Constituent Content of Composite
prepreg of primarily thermosetting matrices that can be ex-
Materials
tractedinorganicsolvent.Thereinforcementandfillermustbe
D3530Test Method for Volatiles Content of Composite
substantially insoluble in the selected extraction reagent. This
Material Prepreg
procedure may also be used for the same purposes to extract
D3878Terminology for Composite Materials
other matrix material types.
E177Practice for Use of the Terms Precision and Bias in
1.3 Procedure B of this test method uses ignition loss of a
ASTM Test Methods
composite prepreg matrix and applies to organic matrix com-
2.2 NFPA Standard:
posite systems containing reinforcing fibers that do not change 3
NFPA 86Standard for Ovens and Furnaces
mass when exposed to the matrix combustion method.
3. Terminology
1.4 This test method assumes a two-part material system
(plus volatiles) and does not distinguish between hybrid
3.1 Definitions—Terminology D3878 defines terms relating
reinforcements or matrices. Use with hybrid composites is
to composite materials. Terminology D883 defines terms
limited to determination of total reinforcement or total matrix
relating to plastics. Practice E177 defines terms relating to
content.
statistics.Intheeventofaconflictbetweenterms,Terminology
D3878 shall have precedence over the other documents.
1.5 Matrix solids determination for ProceduresAor B uses
3.1.1 fiber content, n—the amount of fiber present in a
Test Method D3530 to determine volatiles content.
composite or prepreg expressed either as percent by weight or
1.6 Alternatetechniquesfordeterminingconstituentcontent
percent by volume. This is sometimes stated as a fraction, that
include Test Methods C613 (resin content by Soxhlet extrac-
is, fiber volume fraction. See Terminology D3878.
tion) and D3171 (used principally for consolidated laminates).
3.1.2 matrix content, n—the amount of matrix present in a
1.7 The values stated in SI units are to be regarded as
composite or prepreg expressed either as percent by weight or
standard. No other units of measurement are included in this
percentbyvolume.Forpolymermatrixcompositesthisisresin
standard.
content. See Terminology D3878.
1.8 This standard does not purport to address all of the
3.1.3 prepreg, n—the admixture of fibrous reinforcement
safety concerns, if any, associated with its use. It is the
andpolymericmatrixusedtofabricatecompositematerials.Its
responsibility of the user of this standard to establish appro-
formmaybesheet,tape,ortow.Forthermosettingresins,ithas
priate safety and health practices and determine the applica-
1 2
This test method is under the jurisdiction of ASTM Committee D30 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Composite Materials and is the direct responsibility of Subcommittee D30.03 on contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Constituent/Precursor Properties. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Nov. 1, 2016. Published November 2016. Originally the ASTM website.
3
approved in 1976. Last previous edition approved in 2010 as D3529M–10. DOI: Available from National Fire Protection Association (NFPA), 1 Batterymarch
10.1520/D3529-16. Park, Quincy, MA 02269-9101.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3529 − 16
been partially cured to a controlled viscosity called “B stage”. subtracted from the average r
...

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: D3529M − 10 D3529 − 16
Standard Test Methods for
1
Constituent Content of Composite Prepreg
This standard is issued under the fixed designation D3529M;D3529; 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 the determination of the fiber content, fiber areal weight, matrix solids content and matrix content
of composite material prepregs. Optionally, the matrix solids content can also be determined after a volatiles content has been
established. Volatiles content, if appropriate and required, is determined by means of Test Method D3530/D3530MD3530.
1.2 Procedure A of this test method applies to composite prepreg of primarily thermosetting matrices that can be extracted in
organic solvent. The reinforcement and filler must be substantially insoluble in the selected extraction reagent. This procedure may
also be used for the same purposes to extract other matrix material types.
1.3 Procedure B of this test method uses ignition loss of a composite prepreg matrix and applies to organic matrix composite
systems containing reinforcing fibers that do not change mass when exposed to the matrix combustion method.
1.4 This test method assumes a two-part material system (plus volatiles) and does not distinguish between hybrid reinforcements
or matrices. Use with hybrid composites is limited to determination of total reinforcement or total matrix content.
1.5 Matrix solids determination for Procedures A or B uses Test Method D3530/D3530MD3530 to determine volatiles content.
1.6 Alternate techniques for determining constituent content include Test Methods C613/C613MC613 (resin content by Soxhlet
extraction) and D3171 (used principally for consolidated laminates).
1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.8 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. Specific precautionary information is given in Notes 2-8Sections 8 and 9.
2. Referenced Documents
2
2.1 ASTM Standards:
C613/C613MC613 Test Method for Constituent Content of Composite Prepreg by Soxhlet Extraction
D883 Terminology Relating to Plastics
D3171 Test Methods for Constituent Content of Composite Materials
D3530/D3530MD3530 Test Method for Volatiles Content of Composite Material Prepreg
D3878 Terminology for Composite Materials
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
3
E1309 Guide for Identification of Fiber-Reinforced Polymer-Matrix Composite Materials in Databases (Withdrawn 2015)
2.2 NFPA Standard:
3
NFPA 86 Standard for Ovens and Furnaces
3. Terminology
3.1 Definitions—Terminology D3878 defines terms relating to composite materials. Terminology D883 defines terms relating
to plastics. Practice E177 defines terms relating to statistics. In the event of a conflict between terms, Terminology D3878 shall
have precedence over the other documents.
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 Nov. 1, 2010Nov. 1, 2016. Published December 2010November 2016. Originally approved in 1976. Last previous edition approved in 20082010
as D3529/D3529M – 97D3529M – 10.(2008). DOI: 10.1520/D3529M-10.10.1520/D3529-16.
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.
3
Available from National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02269-9101.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3529 − 16
3.1.1 fiber content, n—the amount of fiber present in a composite or prepreg expressed either as percent by weight or per
...