Standard Practice for Atmospheric Exposure of Adhesive-Bonded Joints and Structures

SCOPE
1.1 This practice defines the procedure for the direct exposure of adhesive bonded joints and structures to natural atmospheric environments.
1.2 The procedure for sheltered atmospheric exposure, such as a Stevenson screen (1), of adhesive-bonded joints and specimens is the same except for the requirements of facing south and measurement of solar radiation.
1.3 This practice is limited to the procedure by which samples are exposed and does not cover the tests that may be used to evaluate the effects of atmospheric exposure on these adhesive-bonded joints and structures. These samples could be any one of several varieties.
1.3.1 A complete structure for test,
1.3.2 A section of a structure for test,
1.3.3 A complete structure or section with strength observations on specimens cut therefrom,
1.3.4 Test specimens themselves, or
1.3.5 Any of the above, mounted under stress.
1.4 Suitable test methods for evaluation of the effects of exposure include nondestructive qualitative or quantitative observations on the same sample at prescribed intervals, or destructive tests on separate sets of specimens in accordance with such tests as Test Method D 1002.
Note 1—See Test Methods D 896 and D 897.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 and health practices and determine the applicability of regulatory limitations prior to use.

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Historical
Publication Date
09-Oct-2001
Technical Committee
Current Stage
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ASTM D1828-01e1 - Standard Practice for Atmospheric Exposure of Adhesive-Bonded Joints and Structures
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Contact ASTM International (www.astm.org) for the latest information
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Designation:D1828–01
Standard Practice for
Atmospheric Exposure of Adhesive-Bonded Joints and
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Structures
This standard is issued under the fixed designation D 1828; 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.
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e NOTE—Adjunct references were corrected editorially in April 2006.
1. Scope 1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This practice defines the procedure for the direct expo-
responsibility of the user of this standard to establish appro-
sure of adhesive bonded joints and structures to natural
priate safety and health practices and determine the applica-
atmospheric environments.
bility of regulatory limitations prior to use.
1.2 The procedure for sheltered atmospheric exposure, such
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as a Stevenson screen (1), of adhesive-bonded joints and
2. Referenced Documents
specimens is the same except for the requirements of facing
3
2.1 ASTM Standards:
south and measurement of solar radiation.
D 896 Practice for Resistance ofAdhesive Bonds to Chemi-
1.3 This practice is limited to the procedure by which
cal Reagents
samples are exposed and does not cover the tests that may be
D 897 Test Method for Tensile Properties of Adhesive
used to evaluate the effects of atmospheric exposure on these
Bonds
adhesive-bonded joints and structures. These samples could be
D 907 Terminology of Adhesives
any one of several varieties.
D 1002 Test Method forApparent Shear Strength of Single-
1.3.1 A complete structure for test,
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
1.3.2 A section of a structure for test,
sion Loading (Metal-to-Metal)
1.3.3 A complete structure or section with strength obser-
2.2 ASTM Adjuncts:
vations on specimens cut therefrom,
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ASTM Standard Racks and Pipe Frames Blueprints
1.3.4 Test specimens themselves, or
1.3.5 Any of the above, mounted under stress.
3. Terminology
1.4 Suitable test methods for evaluation of the effects of
3.1 Definitions:
exposure include nondestructive qualitative or quantitative
3.1.1 Many terms used in this practice are defined in
observations on the same sample at prescribed intervals, or
Terminology D 907.
destructive tests on separate sets of specimens in accordance
with such tests as Test Method D 1002.
4. Significance and Use
NOTE 1—See Test Methods D 896 and D 897.
4.1 The atmospheric exposure tests described in this prac-
tice will evaluate the stability of the adhesive bond only in
1.5 The values stated in SI units are to be regarded as the
termsofaparticularnaturalatmosphere.Sincetheatmospheric
standard. The values given in parentheses are for information
conditions vary greatly from year to year, these results will not
only.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This practice is under the jurisdiction ofASTM Committee D14 onAdhesives contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and is the direct responsibility of Subcommittee D14.40 on Adhesives for Plastics. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 10, 2001. Published December 2001. Originally the ASTM website.
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published as D 1828 – 61 T. Last previous edition D 1828 – 96. Blueprints of ASTM standard racks and pipe frames may be obtained from
2
The boldface numbers in parentheses refer to the list of references at the end of ASTM International Headquarters. OrderAdjunct No.ADJD1828. Original adjunct
this practice. produced in 1957.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D1828–01
be as reproducible as those derived from laboratory aging relative location of the specimens in the sample, as effects that
procedures. Considerable research has shown that laboratory depend on the distance of the specimen from the exposed edge
artificial weathering tests will not give consistently good of the sample have been noted.
correlation with outdoor test exposures (2, 3, 4). 7.2 Provide for the number of specimens required by each
test method plus at least one additional specimen for each test
5. Exposure Sites
method with the number of specimens cut from each sample.
The additional specimens serve as spares in the event of an
5.1 The choice of exposure sites is dependent upon the
objective of the particular test program. anomalous or faulty specimen.
5.2 In the cases of both metallic and nonmetallic adherends,
NOTE 4—It is recommended that control specimens
...

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