ASTM D822-01
(Practice)Standard Practice for Filtered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings
Standard Practice for Filtered 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 filtered open-flame carbon-arc devices conducted according to Practices G 151 and G 152. This practice also covers the preparation of test specimens, the test conditions suited for coatings, and the evaluation of test results. describes commonly used test conditions.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 Practice G 23 has been withdrawn and replaced by Practice G 151, which describes performance criteria for all exposure devices that use laboratory light sources, and by Practice G 152, which gives requirements for exposing nonmetallic materials in filtered open flame carbon-arc devices.
1.2 This practice does not cover enclosed carbon-arc exposures of paints and related coatings, which is described in Practice D 5031. Another procedure for exposing these products is covered by Practice D 3361, in which the specimens are subjected to radiation from an unfiltered open-flame carbon arc that produces shorter wavelengths and higher levels of short wavelength radiation than 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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Designation:D822–01
Standard Practice for
Filtered Open-Flame Carbon-Arc Exposures of Paint and
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Related Coatings
This standard is issued under the fixed designation D 822; 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.
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1. Scope D 523 Test Method for Specular Gloss
D 609 Practice for Preparation of Cold-Rolled Steel Panels
1.1 This practice covers the selection of test conditions for
for Testing Paint, Varnish, Conversion Coatings, and
acceleratedexposuretestingofcoatingsandrelatedproductsin
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Related Coating Products
filtered open-flame carbon-arc devices conducted according to
D 610 Test Method for Evaluating Degree of Rusting on
Practices G 151 and G 152. This practice also covers the
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Painted Steel Surfaces
preparation of test specimens, the test conditions suited for
D 659 Method of Evaluating Degree of Chalking of Exte-
coatings, and the evaluation of test results. Table 1 describes
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rior Paints
commonly used test conditions.
D 660 Test Method for Evaluating Degree of Checking of
NOTE 1—Previous versions of this practice referenced carbon-arc 3
Exterior Paints
devices described by Practice G 23, which described very specific
D 662 Test Method for Evaluating Degree of Erosion of
equipment designs. Practice G 23 has been withdrawn and replaced by
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Exterior Paints
Practice G 151, which describes performance criteria for all exposure
D 714 Test Method for Evaluating Degree of Blistering of
devices that use laboratory light sources, and by Practice G 152, which
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Paints
gives requirements for exposing nonmetallic materials in filtered open
flame carbon-arc devices.
D 772 Test Method for Evaluating Degree of Flaking (Scal-
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ing) of Exterior Paints
1.2 This practice does not cover enclosed carbon-arc expo-
D 823 Practices for Producing Films of Uniform Thickness
sures of paints and related coatings, which is described in
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of Paint, Varnish, and Related Products on Test Panels
Practice D 5031. Another procedure for exposing these prod-
D 1005 Test Methods for Measurement of Dry-Film Thick-
ucts is covered by Practice D 3361, in which the specimens are
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ness of Organic Coatings Using Micrometers
subjected to radiation from an unfiltered open-flame carbon arc
D 1186 Test Methods for Nondestructive Measurement of
that produces shorter wavelengths and higher levels of short
Dry Film Thickness of Nonmagnetic Coatings Applied to
wavelength radiation than filtered open-flame or enclosed
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a Ferrous Base
carbon arcs.
D 1400 Test Method for Nondestructive Measurement of
1.3 This standard does not purport to address all of the
DryFilmThicknessofNonconductiveCoatingsAppliedto
safety concerns, if any, associated with its use. It is the
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a Nonferrous Metal Base
responsibility of the user of this standard to establish appro-
D 1729 Practice for Visual Evaluation of Colors and Color
priate safety and health practices and determine the applica-
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Differences of Diffusely Illuminated Opaque Materials
bility of regulatory limitations prior to use.
D 1730 Practices for Preparation of Aluminum and
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2. Referenced Documents
Aluminum-Alloy Surfaces for Painting
D 2244 Test Method for Calculation of Color Differences
2.1 ASTM Standards:
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From Instrumentally Measured Color Coordinates
D 358 Specification for Wood to Be Used as Panels in
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D 2616 Test Method for Evaluation of Visual Color Differ-
Weathering Tests of Coatings
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ence with a Gray Scale
D 3361 Practice for Operating Light- and Water-Exposure
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Apparatus (Unfiltered Open-Flame Carbon-Arc Type) for
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.27 on Accelerated Testing.
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Current edition approved July 10, 2001. Published September 2001. Originally Annual Book of ASTM Standards, Vol 06.01.
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published as D 822 – 45. Last previous edition D 822 – 96. Discontinued 1989; see 1990 Annual Book of ASTM Standards, Vol 06.01.
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Annual Book of ASTM Standards, Vol 06.02. Annual Book of ASTM Standards, Vol 02.05.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D822
A
TABLE 1 Test Cycles Commonly Used for Filtered Open-Flame Carbon-Arc Exposure Testing of Paints and Related Coatings
Uninsulated Black
B
Panel Temperature
C
Cycle Number Cycle Description (°C) (°F) Typical Uses
E
1 Continuous light 63 6 2.5 145 6 5 General coatings and historic
...
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