Astm D 4102 – 82 (Reapproved 1999)e1 pdf free download

Standard Test Method for
Thermal Oxidative Resistance of Carbon Fibers1

This standard is issued under the fixed designation D 4102; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

This standard has been approved for use by agencies of the Department of Defense.

1. Scope

1.1 This test method covers the apparatus and procedure for
the determination of the weight loss of carbon fibers, exposed
to ambient hot air, as a means of characterizing their oxidative

1.2 The values stated in SI units are to be regarded as
standard. The values given in parentheses are mathematical
conversions to inch-pound units which are provided for information only and are not considered 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. For specific hazard
information, see Section 8.

2. Referenced Documents

2.1 ASTM Standards:
C 613 Test Method for Resin Content of Carbon and Graphite Prepregs by Solvent Extraction2

3. Definitions

3.1 carbon fibers—fibers containing at least 90 % carbon by
the weight made by pyrolysis from synthetic polymeric or pitch
fibers and having moduli $70 GPa ($107 psi).

3.2 precursor—organic fiber from which carbon fibers are
prepared via pyrolysis. Polyacrylonitrile (PAN), rayon, and
pitch are commonly used.

3.3 fiber finish—surface coating applied to fibers to facilitate handling or provide better wetting and compatibility of
fiber and matrix, or both.

4. Summary of Test Method

4.1 The method is composed of two parts. The first one
specifies exposure conditions for an accelerated measurement,

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