ASTM D1014-18
(Practice)Standard Practice for Conducting Exterior Exposure Tests of Paints and Coatings on Metal Substrates
Standard Practice for Conducting Exterior Exposure Tests of Paints and Coatings on Metal Substrates
SIGNIFICANCE AND USE
4.1 The procedures described in this practice are intended to aid in evaluating the performance of coatings on various metal panels including either new or rusted steel.
4.2 The relative durability of paints in outdoor exposures can be very different depending on the location of the exposure because of differences in solar radiation, time of wetness, temperature, pollutants, and other factors. Therefore, it cannot be assumed that results from one exposure in a single location will be useful for determining relative durability in a different location. Exposures in several locations with different climates which represent a broad range of anticipated service conditions are recommended.
4.2.1 Because of year-to-year climatological variations, results from a single exposure test cannot be used to predict the absolute rate at which a material degrades. Several years of repeat exposures are needed to get an “average” test result for a given location.
4.2.2 Solar radiation varies considerably as function of time of year. This can cause large differences in the apparent rate of degradation in many polymers. Comparing results for materials exposed for short periods (less than one year) is not recommended unless materials are exposed at the same time in the same location.
4.3 The Significance and Use in Practice G7 addresses many variables to be considered in exterior exposure tests. Guide G141 provides more information on variability in weathering testing.
SCOPE
1.1 This practice covers procedures to be followed for direct exposure of exterior paints and coatings to the environment when applied to metal surfaces. When originators of a weathering test have the actual exposure conducted by a separate agency, the specific conditions for the exposure of test and control specimens should be clearly defined and mutually agreed upon between all parties.
1.2 Experience indicates that the metal used as a test substrate has a significant effect upon weathering results. The purpose of this practice is to define specific steel and other metal surfaces to be used for testing in order to minimize this source of variability.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parenthesis are for information only.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D1014 − 18
Standard Practice for
Conducting Exterior Exposure Tests of Paints and Coatings
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on Metal Substrates
This standard is issued under the fixed designation D1014; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* A283/A283M Specification for Low and Intermediate Ten-
sile Strength Carbon Steel Plates
1.1 Thispracticecoversprocedurestobefollowedfordirect
B209 Specification for Aluminum and Aluminum-Alloy
exposure of exterior paints and coatings to the environment
Sheet and Plate
when applied to metal surfaces. When originators of a weath-
B449 Specification for Chromates on Aluminum
ering test have the actual exposure conducted by a separate
D523 Test Method for Specular Gloss
agency, the specific conditions for the exposure of test and
D609 Practice for Preparation of Cold-Rolled Steel Panels
control specimens should be clearly defined and mutually
for Testing Paint, Varnish, Conversion Coatings, and
agreed upon between all parties.
Related Coating Products
1.2 Experience indicates that the metal used as a test
D610 Practice for Evaluating Degree of Rusting on Painted
substrate has a significant effect upon weathering results. The
Steel Surfaces
purpose of this practice is to define specific steel and other
D660 Test Method for Evaluating Degree of Checking of
metal surfaces to be used for testing in order to minimize this
Exterior Paints
source of variability.
D661 Test Method for Evaluating Degree of Cracking of
1.3 The values stated in SI units are to be regarded as the
Exterior Paints
standard. The values given in parenthesis are for information
D662 Test Method for Evaluating Degree of Erosion of
only.
Exterior Paints
D714 Test Method for Evaluating Degree of Blistering of
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the Paints
responsibility of the user of this standard to establish appro-
D772 Test Method for Evaluating Degree of Flaking (Scal-
priate safety, health, and environmental practices and deter- ing) of Exterior Paints
mine the applicability of regulatory limitations prior to use.
D823 Practices for Producing Films of Uniform Thickness
1.5 This international standard was developed in accor-
of Paint, Coatings and Related Products on Test Panels
dance with internationally recognized principles on standard-
D1212 Test Methods for Measurement of Wet Film Thick-
ization established in the Decision on Principles for the
ness of Organic Coatings
Development of International Standards, Guides and Recom-
D1654 Test Method for Evaluation of Painted or Coated
mendations issued by the World Trade Organization Technical
Specimens Subjected to Corrosive Environments
Barriers to Trade (TBT) Committee.
D1729 Practice for Visual Appraisal of Colors and Color
Differences of Diffusely-Illuminated Opaque Materials
2. Referenced Documents
D1730 Practices for Preparation of Aluminum and
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2.1 ASTM Standards:
Aluminum-Alloy Surfaces for Painting
A36/A36M Specification for Carbon Structural Steel
D2200 Practice for Use of Pictorial Surface Preparation
Standards and Guides for Painting Steel Surfaces
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This practice is under the jurisdiction of ASTM Committee D01 on Paint and D2201 Practice for Preparation of Zinc-Coated and Zinc-
Related Coatings, Materials, and Applications and is the direct responsibility of
Alloy-Coated Steel Panels for Testing Paint and Related
Subcommittee D01.27 on Accelerated Testing.
Coating Products
Current edition approved April 1, 2018. Published April 2018. Originally
D2244 Practice for Calculation of Color Tolerances and
approved in 1949. Last previous edition approved in 2009 as D1014 – 09 which was
withdrawn January 2018 and reinstated in April 2018. DOI: 10.1520/D1014-18.
Color Differences from Instrumentally Measured Color
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Coordinates
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
D2616 Test Method for Evaluation of Visual Color Differ-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ence With a Gray Scale
*A Summary of Changes section appears at the end of this standard
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