ASTM C1442-06

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Designation: C1442 – 06
Standard Practice for
Conducting Tests on Sealants Using Artificial Weathering
1
Apparatus
This standard is issued under the fixed designation C1442; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope G151 Practice for Exposing Nonmetallic Materials in Ac-
celerated Test Devices that Use Laboratory Light Sources
1.1 This practice covers three types of laboratory weather-
G152 Practice for Operating Open Flame CarbonArc Light
ing exposure procedures for evaluating the effect of actinic
Apparatus for Exposure of Nonmetallic Materials
radiation, heat, and moisture on sealants.
G154 Practice for Operating Fluorescent Light Apparatus
1.2 The exposure sources used in the three types of artificial
for UV Exposure of Nonmetallic Materials
weathering devices are the filtered xenon arc, fluorescent
G155 PracticeforOperatingXenonArcLightApparatusfor
ultravioletlamps,andopenflamecarbonarcbasedonPractices
Exposure of Non-Metallic Materials
G155, G154, and G152, respectively.
2.2 ISO Standard:
1.3 The values stated in SI units are to be regarded as the
ISO 11431 Building Construction—Sealants: Determina-
standard. The values given in parentheses are provided for
tion of Adhesion/Cohesion Properties After Exposure to
information only.
3
Heat and Artificial Light Through Glass and to Moisture
1.4 The ISO standard related to this Practice is ISO 11431.
Significant differences exist between the procedures. The ISO
3. Terminology
specimensareexposedthroughglassandareelongatedpriorto
3.1 Definitions—Definitions of the following terms are
examination for loss of adhesion or cohesion, or both, follow-
found in Terminology C717: compound, cure, sealant, sub-
ing exposure.
strate. Definitions of the following terms are found in Termi-
1.5 This standard does not purport to address all of the
nologyG113: actinic radiation, control material, file specimen,
safety concerns, if any, associated with its use. It is the
fluorescent ultraviolet lamps, irradiance, open flame carbon
responsibility of the user of this standard to establish appro-
arc, radiant exposure, sample, solar radiation-ultraviolet,
priate safety and health practices and determine the applica-
solar radiation-visible, spectral power distribution, xenon arc.
bility of regulatory limitations prior to use.
4. Summary of Practice
2. Referenced Documents
2 4.1 The test sealant may be applied to a variety of types of
2.1 ASTM Standards:
substratesortestedasafreefilm.Theconfigurationdependson
C717 Terminology of Building Seals and Sealants
the properties to be evaluated following exposure.At least four
G113 TerminologyRelatingtoNaturalandArtificialWeath-
replicates of each sealant being tested are required. After
ering Tests of Nonmetallic Materials
curing, one replicate of each sealant being tested is retained as
G141 Guide forAddressing Variability in Exposure Testing
an unexposed file specimen and three replicates are exposed to
of Nonmetallic Materials
actinicradiation,heat,andmoisture.Attheendoftheexposure
G147 Practice for Conditioning and Handling of Nonmetal-
period, the test sealant is examined for property change in
lic Materials for Natural and Artificial Weathering Tests
comparison with the unexposed file specimen and the perfor-
mance is compared with that of an exposed control material, if
1
This practice is under the jurisdiction of ASTM Committee C24 on Building used.
Seals and Sealants and is the direct responsibility of Subcommittee C24.40 on
4.2 It is recommended that a similar material of known
Weathering.
performance under use conditions (a control) be exposed
Current edition approved Jan. 1, 2006. Published February 2006. Originally
simultaneously with the test specimen for evaluation of the
approved in 1999. Last previous edition approved in 2003 as C1442 – 03. DOI:
10.1520/C1442-06.
performance of the test materials relative to that of the control
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
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C1442 – 06
under the same laboratory exposure conditions. It is preferable line voltage, freedom from salt or other deposits from water,
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