ASTM D2584-94
(Test Method)Standard Test Method for Ignition Loss of Cured Reinforced Resins
Standard Test Method for Ignition Loss of Cured Reinforced Resins
SCOPE
1.1 This test method covers the determination of the ignition loss of cured reinforced resins. This ignition loss can be considered to be the resin content within the limitations of 4.2.
1.2 The values stated in SI units are to be regarded as the 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 whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D 2584 – 94 An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
1
Ignition Loss of Cured Reinforced Resins
This standard is issued under the fixed designation D 2584; 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 (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 5. Apparatus
1.1 This test method covers the determination of the ignition 5.1 Crucible, platinum or porcelain, approximately 30-mL
loss of cured reinforced resins. This ignition loss can be capacity.
considered to be the resin content within the limitations of 4.2. 5.2 Electric Muffle Furnace, capable of maintaining a tem-
1.2 The values stated in SI units are to be regarded as the perature of 565 6 28°C (10506 50°F).
standard.
6. Test Specimen
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 6.1 A minimum of three specimens shall be tested for each
sample.
responsibility of whoever uses this standard to consult and
establish appropriate safety and health practices and deter-
NOTE 1—It is often convenient to use samples obtained from specimens
mine the applicability of regulatory limitations prior to use.
that have been tested for mechanical properties such as flexural or tensile
strength. Specimens obtained from these samples must be dry and the
2. Referenced Documents
fractured areas removed, leaving square, unfrayed faces, before being
weighed and ignited.
2.1 ASTM Standards:
D 618 Practice for Conditioning Plastics and Electrical
6.2 The specimen shall weigh approximately 5 g with a
2
Insulating Materials for Testing
maximum size of 2.5 by 2.5 cm by thickness (1 by 1 in. by
thickness).
3. Summary of Test Method
NOTE 2—Materials that have gross differences in the ratio of resin to
3.1 The specimen contained in a crucible is ignited and
reinforcement within an area as small as 2.5 by 2.5 cm (1 by 1 in.) may
allowed to burn until only ash and carbon remain. The
require a larger specimen area than that listed in 6.2. If larger specimens
carbonaceous residue is reduced to an ash by heating in a
are utilized, it will be necessary to cut into approximately 2.5 by 2.5-cm
muffle furnace at 565°C (1050°F), cooled in a desiccator, and
(1 by 1-in.) pieces and place in a crucible of sufficient size to contain the
weighed. specimen.
4. Significance and Use 7. Conditioning
4.1 This test method can be used to obtain the ignition loss 7.1 Conditioning—Condition the test specimens at 236 2°C
of a cured reinforced resin sample. (73.4 6 3.6°F) and 50 6 5 % relative humidity for not less
4.2 If only glass fabric or filament is used as the reinforce- than 40 h prior to test in accordance with Procedure A of
ment of an organic resin that is completely decomposed to Practice D 618 for those tests where conditioning is required.
volatile materials under the conditions of this test and the small In cases of disagreement, the tolerances shall be6 1°C
amount of volatiles (water, residual solvent) that may be (61.8°F) and 62 % relative humidity.
present is ignored, the ignition loss can be considered to be the 7.2 Test Conditions—Conduct tests in the standard labora-
resin content of the sample. tory atmosphere of 23 6 2°C (73.4 6 3.6°F) and 50 6 5%
4.2.1 This test method does not provide a measure of resin relative humidity, unless otherwise specified in the test meth-
content for samples containing reinforcing materials that lose ods or in the specification. In cases of disagreement, the
weight under the conditions of the test or containing resins that tolerances shall be 61°C (61.8°F) and 62 % relative humid-
do not decompose to volatile materials released by ignition. ity.
8. Procedure
1
This test method is under the jurisdiction of ASTM Committee D-20 on Plastics
8.1 Heat a crucible at 500 to 600°C for 10 min or more.
and is the direct responsibility of Subcommittee D20.18 on Reinforced Thermoset-
Cool to room temperature in a desiccator and weigh to the
ting Plastics.
nearest 1.0 mg.
Current edition approved Oct. 15, 1994. Published December 1994. Originally
published as D 2584 – 67 T. Last previous edition D 2584 – 68 (1985). 8.2 Place the specimen in the crucible and weigh to the
2
Annual Book of ASTM Standards, Vol 08.01.
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D 2584
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nearest 1.0 mg. Heat the crucible and specimen in a bunsen
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s 5 =@(X 2 n~X! #/~n 2 1!
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