Standard Practice for Unfiltered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings

SCOPE
1.1 This practice covers the selection of test conditions for accelerated exposure testing of coatings and related products in unfiltered open-flame carbon-arc devices conducted according to Practice G 151. This practice also covers the preparation of test specimens, the test conditions suited for coatings, and the evaluation of test results.Note 1--Previous versions of this practice referenced carbon-arc devices described by Practice G 23, which described very specific equipment designs. Practice G 23 has been withdrawn and replaced by Practice G 151, which describes performance criteria for all exposure devices that use laboratory light sources.
1.2 This practice covers unfiltered open-flame carbon-arc exposures of paints and related coatings, and covers the exposure cycle that has been commonly referred to as the "dew cycle." Practice D 822 describes filtered open-flame carbon-arc devices, and Practice D 5031 describes enclosed carbon-arc exposures. The radiation from an unfiltered open-flame carbon arc produces shorter wavelengths and higher levels of short wavelength radiation than either filtered open-flame or enclosed carbon arcs.
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.

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Publication Date
09-Jul-2001
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ASTM D3361-01 - Standard Practice for Unfiltered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
Designation: D 3361 – 01
Standard Practice for
Unfiltered Open-Flame Carbon-Arc Exposures of Paint and
1
Related Coatings
This standard is issued under the fixed designation D 3361; 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.
1. Scope D 610 Test Method for Evaluating Degree of Rusting on
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Painted Steel Surfaces
1.1 This practice covers the selection of test conditions for
D 659 Method of Evaluating Degree of Chalking of Exte-
accelerated exposure testing of coatings and related products in
4
rior Paints
unfiltered open-flame carbon-arc devices conducted according
D 660 Test Method for Evaluating Degree of Checking of
to Practice G 151. This practice also covers the preparation of
3
Exterior Paints
test specimens, the test conditions suited for coatings, and the
D 662 Test Method for Evaluating Degree of Erosion of
evaluation of test results.
3
Exterior Paints
NOTE 1—Previous versions of this practice referenced carbon-arc
D 714 Test Method for Evaluating Degree of Blistering of
devices described by Practice G23, which described very specific
3
Paints
equipment designs. Practice G23 has been withdrawn and replaced by
D 772 Test Method for Evaluating Degree of Flaking (Scal-
Practice G 151, which describes performance criteria for all exposure
3
ing) of Exterior Paints
devices that use laboratory light sources.
D 822 Practice for Conducting Tests on Paint and Related
1.2 This practice covers unfiltered open-flame carbon-arc
Coatings and Materials Using Filtered Open-Flame
exposures of paints and related coatings, and covers the
3
Carbon-Arc Light- and Water-Exposure Apparatus
exposure cycle that has been commonly referred to as the “dew
D 823 TestMethodsforProducingFilmsofUniformThick-
cycle.”PracticeD 822describesfilteredopen-flamecarbon-arc
ness of Paint, Varnish, Lacquer, and Related Products on
devices, and Practice D 5031 describes enclosed carbon-arc
3
Test Panels
exposures. The radiation from an unfiltered open-flame carbon
D 1005 Test Methods for Measurement of Dry-Film Thick-
arc produces shorter wavelengths and higher levels of short
3
ness of Organic Coatings Using Micrometers
wavelength radiation than either filtered open-flame or en-
D 1186 Test Methods for Nondestructive Measurement of
closed carbon arcs.
Dry Film Thickness of Nonmagnetic Coatings Applied to
1.3 This standard does not purport to address all of the
3
a Ferrous Base
safety concerns, if any, associated with its use. It is the
D 1400 Test Method for Nondestructive Measurement of
responsibility of the user of this standard to establish appro-
DryFilmThicknessofNonconductiveCoatingsAppliedto
priate safety and health practices and determine the applica-
3
a Nonferrous Metal Base
bility of regulatory limitations prior to use.
D 1729 Practice for Visual Appraisal of Colors and Color
3
Differences of Diffusely Illuminated Opaque Materials
2. Referenced Documents
D 1730 Practices for Preparation of Aluminum and
2.1 ASTM Standards:
5
Aluminum-Alloy Surfaces for Painting
D 358 Specification for Wood to Be Used as Panels in
D 2244 Test Method for Calculation of Color Differences
2
Weathering Tests of Coatings
3
from Instrumentally Measured Color Coordinates
3
D 523 Test Method for Specular Gloss
D 2616 Test Method for Evaluation of Visual Color Differ-
D 609 Practice for Preparation of Cold-Rolled Steel Panels
3
ence with a Gray Scale
for Testing Paint, Varnish, Conversion Coatings, and
D 3980 Practice for Interlaboratory Testing of Paint and
3
Related Coating Products
6
Related Materials
D 4214 Test Methods for Evaluating Degree of Chalking of
3
Exterior Paint Films
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
D 5031 Practice for Conducting Tests on Paint and Related
Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.27 on Accelerated Testing.
Current edition approved July 10, 2001. Published September 2001. Originally
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published as D 3361 – 74. Last previous edition D 3361 – 93. Discontinued 1989; see 1990 Annual Book of ASTM Standards, Vol 06.01.
2 5
Annual Book of ASTM Standards, Vol 06.02. Annual Book of ASTM Standards, Vol 02.05.
3 6
Annual Book of ASTM Standards, Vol 06.01. Discontinued 1998; see 1997 Annual Book of ASTM Standards, Vol 06.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
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