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ASTM-D3171:2009 Edition

ASTM-D3171:2009 Edition

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D3171-09 Standard Test Methods for Constituent Content of Composite Materials

Published By Publication Date Number of Pages
ASTM 2009 10
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1.1 These test methods determine the constituent content of composite materials by one of two approaches. Method I physically removes the matrix by digestion or ignition by one of seven procedures, leaving the reinforcement essentially unaffected and thus allowing calculation of reinforcement or matrix content (by weight or volume) as well as percent void volume. Method II, applicable only to laminate materials of known fiber areal weight, calculates reinforcement or matrix content (by weight or volume), and the cured ply thickness, based on the measured thickness of the laminate. Method II is not applicable to the measurement of void volume.

1.1.1 These test methods are primarily intended for two-part composite material systems. However, special provisions can be made to extend these test methods to filled material systems with more than two constituents, though not all test results can be determined in every case.

1.1.2 The procedures contained within have been designed to be particularly effective for certain classes of polymer or metal matrices. The suggested applications are discussed in Section 4, as well as at the start of each procedure.

1.1.3 Method I assumes that the reinforcement is essentially unaffected by the digestion or ignition medium. A procedure for correction of the results for minor changes in the reinforcement is included. Procedures A through F are based on chemical removal of the matrix while Procedure G removes the matrix by igniting the matrix in a furnace.

1.1.4 Method II assumes that the fiber areal weight of the reinforcement material form is known or controlled to an acceptable tolerance. The presence of voids is not measured. Eq 9 and 10 assume zero void content to perform the calculation.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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. See Section 9 for additional information.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Summary of Test Method
Significance and Use
Interferences
3 Apparatus
4 Reagents
Hazards
5 Test Specimen
Calibration and Standardization
Conditioning
Procedure
6 Calculation
Report
7 Precision and Bias
Keywords
A1. PROCEDURE Aā€”MATRIX DIGESTION USING NITRIC ACID
A1.1
A1.2
A1.3
A1.4
A1.5
A1.6
A1.7
A1.8
A2. PROCEDURE Bā€”MATRIX DIGESTION USING SULFURIC ACID/HYDROGEN PEROXIDE
A2.1
A2.2
A2.3
A2.4
A2.5
A2.6
A2.7
8 A2.8
A2.9
A3. PROCEDURE Cā€”MATRIX DIGESTION USING ETHYLENE GLYCOL/POTASSIUM HYDROXIDE
A3.1
A3.2 Preparation of Reagent
A3.3
A3.4
A3.5
A3.6
A3.7
A3.8
A3.9
A3.10
A4. PROCEDURE Dā€”MATRIX DIGESTION USING SODIUM HYDROXIDE
A4.1
A4.2
A4.3
A4.4
A4.5
A4.6
A4.7
A4.8
9 A5. PROCEDURE Eā€”MATRIX DIGESTION USING HYDROCHLORIC ACID
A5.1
A5.2
A5.3
A5.4
A5.5
A5.6
A5.7
A5.8
A6. PROCEDURE Fā€”MATRIX DIGESTION WITH NITRIC ACID IN A MICROWAVE OVEN
A6.1
A6.2
A6.3
A6.4
A6.5
A6.6
A6.7
A6.8
A7. PROCEDURE Gā€”MATRIX BURNOFF IN A MUFFLE FURNACE
A7.1
A7.2
A7.3
10 A7.4
A7.5
A7.6
A7.7

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