Standard Practice for Evaluating Durability of Building Construction Sealants by Laboratory Accelerated Weathering Procedures

SCOPE
1.1 This practice covers the method for the determination of the durability of a sealant based on its ability to function in cyclic movement maintaining adhesion and cohesion after repeated exposure to laboratory accelerated weathering procedures.
1.2 This practice describes two laboratory accelerated weathering procedures for evaluating the durability of a sealant.
1.3 The RILEM TC139-DBS Durability Test Method is related to this practice.
1.4 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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Publication Date
09-May-2002
Drafting Committee
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ASTM C1519-02a - Standard Practice for Evaluating Durability of Building Construction Sealants by Laboratory Accelerated Weathering Procedures
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Designation: C 1519 – 02a
Standard Practice for
Evaluating Durability of Building Construction Sealants by
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Laboratory Accelerated Weathering Procedures
This standard is issued under the fixed designation C 1519; 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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1. Scope for Exposure of Nonmetallic Materials
2.2 RILEM Standard
1.1 This practice covers the method for the determination of
RILEM TC139–DBS Durability Test Method Determina-
the durability of a sealant based on its ability to function in
tion of changes in adhesion, cohesion, and appearance of
cyclic movement maintaining adhesion and cohesion after
elastic weatherproofing sealants for high movement fa-
repeated exposure to laboratory accelerated weathering proce-
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cade joints after exposure to artificial weathering
dures.
1.2 This practice describes two laboratory accelerated
3. Terminology
weathering procedures for evaluating the durability of a
3.1 The definitions given in Terminology C 717 on terms
sealant.
relating to building seals and sealants and in Terminology
1.3 The RILEM TC139–DBS Durability Test Method is
G 113 on terms relating to natural and artificial weathering
related to this practice.
tests are applicable to this practice.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 This practice describes the procedure to evaluate and/or
priate safety and health practices and determine the applica-
compare the durability of sealants when subjected to acceler-
bility of regulatory limitations prior to use.
ated weathering and cyclic movement in a joint.
4.2 Sealant installation procedures, design considerations
2. Referenced Documents
and movement during cure affect the aging processes and are
2.1 ASTM Standards:
2 fundamental to the success of any sealant. These factors are not
C 717 Terminology of Building Seals and Sealants
addressed with this test procedure.
C 719 Test Method for Adhesion and Cohesion of Elasto-
4.3 The amount, type and frequency of movement a sealant
meric Joint Sealants Under Cyclic Movement (Hockman
2 experiences during its lifetime strongly depends on the mate-
Cycle)
rials used in construction and on the orientation of the joint
E 691 Practice for Conducting an Interlaboratory Study to
3 toward sunlight and many other factors that are not uniform or
Determine the Precision of a Test Method
consistent.
G 113 Terminology Relating to Natural and Artificial
4 4.4 Climatic exposures will differ with the orientation of the
Weathering Tests of Nonmetallic Materials
building and shading as well as with local and regional climatic
G 141 Guide for Addressing Variability in Exposure Testing
4 conditions. Climates in a given location can vary from year to
on Nonmetallic Materials
year because of differences in solar radiation, temperature,
G 151 Practice for Exposing Nonmetallic Materials in Ac-
rainfall, and atmospheric conditions. Further, the quality and
celerated Test Devices That Use Laboratory Light
4 intensity of solar radiation on the earth’s surface varies with
Sources
geographic location, season, time of day, and cloud cover.
G 154 Practice for Operating Fluorescent Light Apparatus
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4.5 Variations in results may be expected when operating
For UV Exposure to Nonmetallic Materials
conditions are varied within the accepted limits of this practice.
G 155 Practice for Operating Xenon Arc Light Apparatus
Therefore, all test results using this practice must be accom-
panied by a report of the specific operating conditions as
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required in Section 11. Refer to Practice G 151 for detailed
This practice is under the jurisdiction of ASTM Committee C24 on Building
Seals and Sealants and is the direct responsibility of Subcommittee C24.40 on information on the caveats applicable to use of results obtained
Weathering.
according to this practice.
Current edition approved May 10, 2002. Published June 2002. Originally
published as C 1519 – 02. Last previous edition C 1519 - 02.
2
Annual Book of ASTM Standards, Vol 04.07.
3
Annual Book of ASTM Standards, Vol 04.06.
4 5
Annual Book of ASTM Standards, Vol 14.04. Published in Materials and Structures (2001), pp. 34, 579–588.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C 1519 – 02a
adheres, their surfaces should be made non-adherent, for example, by a
4.6 The results of laboratory exposure cannot
...

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