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ASTM D6625-01(2007)

(Practice)

Standard Practice for Conducting a Test of Protective Properties of Polish Applied to a Painted Panel Using Fluorescent UV-Condensation Light- and Water-Exposure Apparatus

Standard Practice for Conducting a Test of Protective Properties of Polish Applied to a Painted Panel Using Fluorescent UV-Condensation Light- and Water-Exposure Apparatus

SIGNIFICANCE AND USE
Organic coatings on exterior exposure are subjected to attack by degrading elements of the weather, particularly ultraviolet light, oxygen, and water. This practice may be used for evaluating the protective behavior of polish film applied to a coating. This polish-coated coating is then exposed in an apparatus that produces ultraviolet radiation, temperature, and water condensation for a given time period.
No single light exposure apparatus, with or without water, can be specified as a direct simulation of natural exposure. This practice does not imply a specific correlation with outdoor exposure. It is, however, useful in screening the protective quality of a polish within the test parameter.
SCOPE
1.1 This practice covers the selection of test conditions from Practice G 53 to be employed for exposure testing of polish-coated paint, related coatings, and materials. This practice covers the basic principles and operating procedures for using fluorescent ultraviolet (UV) and condensation apparatus to simulate the deterioration caused by sunlight and water as rain or dew.
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.

General Information

Status
Historical
Publication Date
31-Jan-2007
ICS
19.020 - Test conditions and procedures in general
87.020 - Paint coating processes
Technical Committee
D21 - Polishes
Drafting Committee
D21.04 - Performance Tests
Current Stage
Ref Project

Relations

Replaces
ASTM D6625-01 - Standard Practice for Conducting a Test of Protective Properties of Polish Applied to a Painted Panel Using Fluorescent UV-Condensation Light- and Water-Exposure Apparatus
Effective Date
01-Feb-2007

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ASTM D6625-01(2007) - Standard Practice for Conducting a Test of Protective Properties of Polish Applied to a Painted Panel Using Fluorescent UV-Condensation Light- and Water-Exposure ApparatusASTM D6625-01(2007) - Standard Practice for Conducting a Test of Protective Properties of Polish Applied to a Painted Panel Using Fluorescent UV-Condensation Light- and Water-Exposure Apparatus
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ASTM D6625-01(2007) - Standard Practice for Conducting a Test of Protective Properties of Polish Applied to a Painted Panel Using Fluorescent UV-Condensation Light- and Water-Exposure Apparatus
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Standards Content (Sample)

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: D6625 − 01(Reapproved 2007)
Standard Practice for
Conducting a Test of Protective Properties of Polish Applied
to a Painted Panel Using Fluorescent UV-Condensation
1
Light- and Water-Exposure Apparatus
This standard is issued under the fixed designation D6625; 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 3.2 No single light exposure apparatus, with or without
water, can be specified as a direct simulation of natural
1.1 Thispracticecoverstheselectionoftestconditionsfrom
exposure. This practice does not imply a specific correlation
Practice G53 to be employed for exposure testing of polish-
with outdoor exposure. It is, however, useful in screening the
coated paint, related coatings, and materials. This practice
protective quality of a polish within the test parameter.
covers the basic principles and operating procedures for using
fluorescent ultraviolet (UV) and condensation apparatus to
4. Apparatus and Material
simulate the deterioration caused by sunlight and water as rain
or dew.
4.1 Fluorescent UV/Condensation Apparatus, complying
with Practice G53.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.2 Glossmeter, using an angle of reflection of 60°. The
responsibility of the user of this standard to establish appro-
instrument and the reference standards shall conform to the
priate safety and health practices and determine the applica-
requirements prescribed in Test Method D523.
bility of regulatory limitations prior to use.
4.3 Forced-air Oven.
2. Referenced Documents
4.4 Q Panel, 3 by 6 in. aluminum.
2
2.1 ASTM Standards:
4.5 Base Paint Coating—should be a red paint that gives
D523 Test Method for Specular Gloss
100 % loss in gloss after being exposed to the test in this
G53 Practice for Operating Light-and Water-Exposure Ap-
practice. Apply this paint to the 3 by 6 in. aluminum panel
paratus (Fluorescent UV-Condensation Type) for Expo-
according to the instructions on the spray can. Allow paint
3
sure of Nonmetallic Materials (Withdrawn 2000)
coating to air dry for 24 h followed by 2 h of drying in a
forced-air oven at 50°C.
3. Significance and Use
4.6 PolishingandApplicationCloth—shall be the same size
3.1 Organic coatings on exterior exposure are subjected to
and type for each sample tested. Separate cloths shall be used
attack by degrading elements of the weather, particularly
for each polish and for the application step and buffing step.
ultraviolet light, oxygen, and water. This practice may be used
Materials such as washed cheesecloth, rumple cloth, flannel,
for evaluating the protective behavior of polish film applied to
cotton diaper cloth, and nonwoven fabrics are suitable for this
a coating. This polish-coated coating is then exposed in an
purpose. Felt or paper shall not be used.
apparatus that produces ultraviolet radiation, temperature, and
4.7 Samples of Polish, to be tested.
water condensation for a given time period.
5. Procedure
5.1 Apply the test polish to one half of the prepared coated
1
This practice is under the jurisdiction of ASTM Committee D21 on Polishes
and is the direct responsibility of Subcommittee D21.04 on Performance Tests. panel. If the polish is a commercially available product, follow
Current edition approved Feb. 1, 2007. Published March 2007. Originally
the directions on the container so far as is possible. When in
approved in 2001. Last previous edition approved in 2001 as D6625 - 01. DOI:
doubt of the application method use the following:
10.1520/D6625-01R07.
2
5.1.1 Apply the polish, allow it to dry to a haze, and then
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
buff it with a soft cloth to a glossy shine. Equal volumes of test
Standards volume information, refer to the standard’s Document Summary page on
polishes should be applied when comparing products. Avoid
the ASTM website.
3
excessively thin or heavy coats of polish. The temperature and
The last approved version of this historical standard is referenced on
www.astm.org. relative humidity should be measured so that the polish is
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6625 − 01 (2007)
applied within 70-80°F and 20-80 % humidity. The precoated 6. Report
panelsshallhavethesametemperatureasthesurroundingarea.
6.1 Report the manufacturer and model of the fluorescent
UV/condensat
...

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3.1 Organic coatings on exterior exposure are subjected to attack by degrading elements of the weather, particularly ultraviolet light, oxygen, and water. This practice may be used for evaluating the protective behavior of polish film applied to a coating. This polish-coated coating is then exposed in an apparatus that produces ultraviolet radiation, temperature variation, and water condensation for a given time period.  
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3.1 Organic coatings on exterior exposure are subjected to attack by degrading elements of the weather, particularly ultraviolet light, oxygen, and water. This practice may be used for evaluating the protective behavior of polish film applied to a coating. This polish-coated coating is then exposed in an apparatus that produces ultraviolet radiation, temperature variation, and water condensation for a given time period.  
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