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ASTM D 6441 : 2005 : R2016

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Methods for Measuring the Hiding Power of Powder Coatings
Available format(s)

Hardcopy , PDF

Superseded date

02-27-2024

Language(s)

English

Published date

04-11-2016

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 06.01, 2018 Defines and report the hiding power of a powder coating with respect to two parameters: Test Method A - Contrast Ratio at a given film thickness; Test Method B - Film thickness at 0.98 (98%) contrast ratio.

1.1These test methods determine and report the hiding power of a powder coating with respect to two parameters:

1.1.1Test Method A—Contrast Ratio at a given film thickness

1.1.2Test Method B—Film thickness at 0.98 (98 %) contrast ratio.

Note 1:The measured parameters follow powder coating industry practice by measuring hiding power in relation to film thickness, rather than the “Spreading Rate” function employed in Test Methods D344 and D2805 and other hiding power test methods.

Note 2:Hiding power is photometrically defined as the spreading rate at 0.98 contrast ratio. See definitions of spreading rate and hiding power in Terminology D16, D2805, and the Paint and Coatings Testing Manual.

Note 3:The contrast ratio 0.98 is conventionally accepted in the coatings industry as representing “complete” hiding for reflectometric hiding power measurements. But visually, as well as photometrically, it is slightly less than complete.

1.2These test methods cover the determination of the hiding power of powder coatings applied by electrostatic spraying.

1.3These test methods determine hiding power by means of reflectometric and thickness gage measurements. They are limited to coatings having a minimum CIE-Y reflectance of 15 %.

1.4The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.5This 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 to determine in advance the applicability of regulatory limitations prior to use.

Committee
D 01
DocumentType
Test Method
Pages
8
ProductNote
Reconfirmed 2016
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 3451 : 2006 : R2017 Standard Guide for Testing Coating Powders and Powder Coatings

ASTM E 1331 : 1996 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry
ASTM E 1331 : 2015 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry
ASTM E 1347 : 2006 : R2020 Standard Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
CGSB 1-GP-71 : 74 AMD 13 METHODS OF TESTING PAINTS AND PIGMENTS
ASTM D 2805 : 2011 : R2018 Standard Test Method for Hiding Power of Paints by Reflectometry
ASTM D 3451 : 2006 : R2012 Standard Guide for Testing Coating Powders and Powder Coatings
ASTM E 1347 : 2006 : R2015 Standard Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
ASTM E 1331 : 2015 : R2023 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry
ASTM E 284 : 2022 Standard Terminology of Appearance
ASTM E 1347 : 2003 Standard Test Method for Color and Color-Difference Measurement by Tristimulus (Filter) Colorimetry
ASTM E 284 : 2017 : REDLINE Standard Terminology of Appearance
ASTM D 16 : 2016 : REDLINE TERMINOLOGY FOR PAINT, RELATED COATINGS, MATERIALS, AND APPLICATIONS
ASTM D 3451 : 2006 Standard Guide for Testing Coating Powders and Powder Coatings
ASTM D 16 : 2019 Standard Terminology for Paint, Related Coatings, Materials, and Applications
ASTM E 1347 : 1997 Standard Test Method for Color and Color-Difference Measurement by Tristimulus (Filter) Colorimetry
ASTM E 1349 : 2006 : R2013 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45°:0° or 0°:45°) Geometry
ASTM D 3451 : 2006 : R2017 Standard Guide for Testing Coating Powders and Powder Coatings
ASTM E 1347 : 2006 Standard Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
ASTM D 2805 : 1996 : REV A Standard Test Method for Hiding Power of Paints by Reflectometry
ASTM E 1331 : 2004 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry
ASTM D 16 : 2024 Standard Terminology for Paint, Related Coatings, Materials, and Applications
ASTM E 1349 : 1990 : R1998 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional Geometry
ASTM E 1349 : 2006 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45:0 or 0:45) Geometry
ASTM D 3451 : 1992 Standard Practices for Testing Polymeric Powders and Powder Coatings
ASTM E 1347 : 2006 : R2011 Standard Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
ASTM D 2805 : 2011 Standard Test Method for Hiding Power of Paints by Reflectometry
ASTM E 1331 : 2009 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry
ASTM E 1331 : 2015 : R2019 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry
ASTM D 2805 : 2011 : R2023 Standard Test Method for Hiding Power of Paints by Reflectometry
ASTM E 1349 : 2006 : R2022 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45°:0° or 0°:45°) Geometry
ASTM D 2805 : 1996 : REV A : R2003 Standard Test Method for Hiding Power of Paints by Reflectometry
ASTM E 1349 : 2006 : R2018 Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45°:0° or 0°:45°) Geometry
ASTM E 284 : 2017 Standard Terminology of Appearance
ASTM D 3451 : 2001 Standard Guide for Testing Coating Powders and Powder Coatings
ASTM E 1331 : 2015 : REDLINE Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry
ASTM D 16 : 2023 Standard Terminology for Paint, Related Coatings, Materials, and Applications

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