ASTM D5894-05

Standard Practice for Cyclic Salt Fog/UV Exposure of Painted Metal, (Alternating Exposures in a Fog/Dry Cabinet and a UV/Condensation Cabinet)

SCOPE
1.1 This practice covers basic principles and operating practice for cyclic corrosion/UV exposure of paints on metal, using alternating periods of exposure in two different cabinets: a cycling salt fog/dry cabinet, and a fluorescent UV/condensation cabinet.
1.2 This practice is limited to the methods of obtaining, measuring, and controlling exposure conditions, and procedures. It does not specify specimen preparation nor evaluation of results.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.

General Information

• Status: Historical
• Publication Date: 30-Jun-2005
• ICS: 87.040 - Paints and varnishes
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.27 - Accelerated Testing

Relations

• Replaces: ASTM D5894-96 - Standard Practice for Cyclic Salt Fog/UV Exposure of Painted Metal, (Alternating Exposures in a Fog/Dry Cabinet and a UV/Condensation Cabinet)
• Effective Date: 01-Jul-2005
• Replaced By: ASTM D5894-10 - Standard Practice for Cyclic Salt Fog/UV Exposure of Painted Metal, (Alternating Exposures in a Fog/Dry Cabinet and a UV/Condensation Cabinet)
• Effective Date: 01-Dec-2010
• Referred By: ASTM D1654-08(2016)e1 - Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments
• Effective Date: 01-Jul-2005
• Referred By: ASTM D3794-22 - Standard Guide for Testing Coil Coatings
• Effective Date: 01-Jul-2005
• Referred By: ASTM D7893-13(2018) - Standard Guide for Corrosion Test Panel Preparation, Testing, and Rating of Coil-Coated Building Products
• Effective Date: 01-Jul-2005
• Referred By: ASTM D6577-15(2019) - Standard Guide for Testing Industrial Protective Coatings
• Effective Date: 01-Jul-2005

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5894 – 05
Standard Practice for
Cyclic Salt Fog/UV Exposure of Painted Metal, (Alternating
Exposures in a Fog/Dry Cabinet and a UV/Condensation
1
Cabinet)
This standard is issued under the fixed designation D5894; 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 D4587 Practice for Fluorescent UV-Condensation Expo-
sures of Paint and Related Coatings
1.1 This practice covers basic principles and operating
G85 Practice for Modified Salt Spray (Fog) Testing
practice for cyclic corrosion/UV exposure of paints on metal,
G113 TerminologyRelatingtoNaturalandArtificialWeath-
using alternating periods of exposure in two different cabinets:
ering Tests of Nonmetallic Materials
a cycling salt fog/dry cabinet, and a fluorescent UV/
G147 Practice for Conditioning and Handling of Nonmetal-
condensation cabinet.
lic Materials for Natural and Artificial Weathering Tests
1.2 This practice is limited to the methods of obtaining,
G151 Practice for Exposing Nonmetallic Materials in Ac-
measuring, and controlling exposure conditions, and proce-
celerated Test Devices that Use Laboratory Light Sources
dures. It does not specify specimen preparation nor evaluation
G152 Practice for Operating Open Flame CarbonArc Light
of results.
Apparatus for Exposure of Nonmetallic Materials
1.3 The values stated in SI units are to be regarded as
G154 Practice for Operating Fluorescent Light Apparatus
standard. No other units of measurement are included in this
for UV Exposure of Nonmetallic Materials
standard.
G155 PracticeforOperatingXenonArcLightApparatusfor
1.4 This standard does not purport to address all of the
Exposure of Non-Metallic Materials
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety and health practices and determine the applica-
3.1 Definitions—The definitions given in Terminology
bility of regulatory limitations prior to use.
G113 are applicable to this practice.
2. Referenced Documents
4. Summary of Practice
2
2.1 ASTM Standards:
4.1 The test specimens are exposed to alternating periods of
D610 Practice for Evaluating Degree of Rusting on Painted
one week in a fluorescent UV/condensation chamber and one
Steel Surfaces
week in a cyclic salt fog/dry chamber. The fluorescent UV/
D714 Test Method for Evaluating Degree of Blistering of
2
condensation cycle is 4-h UV at 0.89 W/(m · nm) at 340 nm at
Paints
60°C and 4-h condensation at 50°C, using UVA-340 lamps.
D1654 Test Method for Evaluation of Painted or Coated
The fog/dry chamber runs a cycle of 1-h fog at ambient
Specimens Subjected to Corrosive Environments
temperature and 1-h dry-off at 35°C. The fog electrolyte is a
relatively dilute solution, with 0.05 % sodium chloride and
1
0.35 % ammonium sulfate.
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
Related Coatings, Materials, and Applications and is the direct responsibility of
NOTE 1—The irradiance target setpoint of 0.89 is based upon actual
Subcommittee D01.27 on Accelerated Testing.
irradiance levels that have been historically widely used for coatings.
Current edition approved July 1, 2005. Published July 2005. Originally approved
in 1996. Last previous edition approved in 1996 as D5894 – 96. DOI: 10.1520/
5. Significance and Use
D5894-05.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 Theoutdoorcorrosionofpaintedmetalsisinfluencedby
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
many factors, including: corrosive atmospheres, rain, con-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. densed dew, UV light, wet/dry cycling, and temperature
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D5894 – 05
cycling. These factors frequently have a synergistic effect on 6. Apparatus
one another. This practice is intended to provide a more
6.1 Fluorescent UV-Condensation Exposure Chamber,
realistic simulation of the interaction of these factors than is
complying with Practices G151 and G154.
found in traditional tests with continuous exposure to a static
6.2 UVA-340 Fluorescent Lamps.
set of corrosive conditions.
6.3 Salt Fog/Dry Cabinet, complying with Practice G85,
5.2 Results obtained from this practice can be used to
Dilute Electrolyte Cyclic Fog/Dry Test Annex.
compare the relative durability of materials subjected to the
NOTE 2—Committee G03 i
...