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ASTM D5382-02(2007)

(Guide)

Standard Guide to Evaluation of Optical Properties of Powder Coatings

Standard Guide to Evaluation of Optical Properties of Powder Coatings

ABSTRACT
This standard provides guide to evaluation and testing of color, color difference, gloss, metamerism, and miscellaneous optical properties of optical powder coatings by both visual and instrumental means. Visual evaluation of optical properties shall include visual gloss test method, Munsell Color Order System, and ASTM test standards indicated in the specification. Instrumental evaluation of optical properties shall include specular gloss test, filter photometry, reflection haze, fluorescence, and ASTM test standards indicated in the specification.
SCOPE
1.1 This standard provides the user with a guide to the various available practices and test methods for the evaluation of color, color difference, gloss, and metamerism by both visual and by instrumental means.
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-May-2007
ICS
25.220.20 - Surface treatment
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.51 - Powder Coatings
Current Stage
Ref Project

Relations

Replaces
ASTM D5382-02 - Standard Guide to Evaluation of Optical Properties of Powder Coatings
Effective Date
01-Jun-2007
Replaced By
ASTM D5382-02(2013) - Standard Guide to Evaluation of Optical Properties of Powder Coatings
Effective Date
01-Jun-2013
Referred By
ASTM D3451-06(2017) - Standard Guide for Testing Coating Powders and Powder Coatings
Effective Date
01-Jun-2007

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ASTM D5382-02(2007) - Standard Guide to Evaluation of Optical Properties of Powder CoatingsASTM D5382-02(2007) - Standard Guide to Evaluation of Optical Properties of Powder Coatings
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ASTM D5382-02(2007) - Standard Guide to Evaluation of Optical Properties of Powder 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5382 − 02 (Reapproved2007)
Standard Guide to
Evaluation of Optical Properties of Powder Coatings
This standard is issued under the fixed designation D5382; 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.
INTRODUCTION
The term optical properties of powder coatings refers to those properties associated with the
interaction of visible light with the coatings. These properties include, but are not limited to, color,
color difference, gloss, and metamerism. Coating powder users and producers may sometimes be
overwhelmed by the sheer number of standard practices and standard test methods available for the
evaluation of the optical properties of the finished coatings.
This guide is intended to lead the user to each of the practices and test methods needed, once the
user decides whether the evaluation is to be by visible means or by instrumental means. Further, the
user must decide which of the several optical properties mentioned above are to be evaluated. This
guide will lead the user to the applicable practices and test methods for the properties chosen by the
means selected.
1. Scope* Color Differences from Instrumentally Measured Color
Coordinates
1.1 This standard provides the user with a guide to the
D2616 Test Method for Evaluation of Visual Color Differ-
various available practices and test methods for the evaluation
ence With a Gray Scale
of color, color difference, gloss, and metamerism by both
D3134 Practice for Establishing Color and Gloss Tolerances
visual and by instrumental means.
D4039 Test Method for Reflection Haze of High-Gloss
1.2 This standard does not purport to address all of the
Surfaces
safety concerns, if any, associated with its use. It is the
D4086 Practice for Visual Evaluation of Metamerism
responsibility of the user of this standard to establish appro-
D4449 Test Method for Visual Evaluation of Gloss Differ-
priate safety and health practices and determine the applica-
ences Between Surfaces of Similar Appearance
bility of regulatory limitations prior to use.
D5767 Test Methods for Instrumental Measurement of
Distinctness-of-Image Gloss of Coating Surfaces
2. Referenced Documents
2 E284 Terminology of Appearance
2.1 ASTM Standards:
E308 PracticeforComputingtheColorsofObjectsbyUsing
D523 Test Method for Specular Gloss
the CIE System
D1535 Practice for Specifying Color by the Munsell System
E430 TestMethodsforMeasurementofGlossofHigh-Gloss
D1729 Practice for Visual Appraisal of Colors and Color
Surfaces by Abridged Goniophotometry
Differences of Diffusely-Illuminated Opaque Materials
E1247 Practice for Detecting Fluorescence in Object-Color
D2244 Practice for Calculation of Color Tolerances and
Specimens by Spectrophotometry
E1331 Test Method for Reflectance Factor and Color by
Spectrophotometry Using Hemispherical Geometry
This guide is under the jurisdiction of ASTM Committee D01 on Paint and
Related Coatings, Materials, and Applications and is the direct responsibility of E1345 Practice for Reducing the Effect of Variability of
Subcommittee D01.51 on Powder Coatings.
Color Measurement by Use of Multiple Measurements
Current edition approved June 1, 2007. Published June 2007. Originally
E1347 Test Method for Color and Color-Difference Mea-
approved in 1993. Last previous edition approved in 2002 as D5382 – 02. DOI:
10.1520/D5382-02R07. surement by Tristimulus Colorimetry
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
E1349 Test Method for Reflectance Factor and Color by
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Spectrophotometry Using Bidirectional (45°:0° or 0°:45°)
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Geometry
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D5382 − 02 (2007)
E1360 Practice for Specifying Color by Using the Optical 4.2 Color: To obtain the color notation of a specimen in the
Society of America Uniform Color Scales System Munsell Color Order System use Practice D1535.To obtain the
E1541 Practice for Specifying and Matching Color Using color notation of a specimen in the Optical Society ofAmerica
the Colorcurve System (Withdrawn 2007) Uniform Color System use Practice E1360. To obtain the color
notation of a specimen in the Colorcurve System use Practice
3. Terminology
E1541.
3.1 The definitions in Terminology E284 are applicable to
4.3 Color Difference: Practice D1729 will provide visual
the appearance terms used in this standard. The following
color difference in descriptive terms. If it is desirable to
terms from Terminology E284 are specific to this standard.
quantify the color difference visually, use Test Method D2616.
3.2 Definitions of Terms Specific to This Standard:
4.4 Metamerism:Carryoutvisualevaluationofametameric
3.2.1 coating powder(s), n—finelydividedparticlesofresin,
pair of specimens by Practice D4086.
either thermoplastic or thermosetting, generally incorporating
4.5 Misc
...

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ASTM D5009-02(2023)(Test Method)
Standard Test Method for Evaluating and Comparing Transfer Efficiency of Spray Applied Coatings Under Laboratory Conditions

SIGNIFICANCE AND USE
5.1 Subject to the limitations listed above, the procedure can be used as a research tool to optimize spray equipment and paint formulations as well as to study the relative effect on transfer efficiency of changing operating variables, spray application equipment, and types of coatings.
SCOPE
1.1 This test method covers the evaluation and comparison of the transfer efficiency of spray-applied coatings under controlled laboratory conditions.  
1.2 This test method has been shown to yield excellent intralaboratory reproducibility. Interlaboratory precision is poorer and is highly dependent on closely controlled air flow in the spray booth, the rate at which the paint is delivered to the part, and other variables suggested in the test method.  
1.3 Limitations:  
1.3.1 This laboratory procedure only indicates the direction of the effect of spray variables on transfer efficiency. The magnitude of the effect is determined only by specific plant experience.  
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1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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