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ASTM D4303

Standard Test Methods for Lightfastness of Colorants Used in Artists’ Materials

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Organization: ASTM
Publication Date: 10 May 2003
Status: inactive
Page Count: 9
ICS Code (Pigments and extenders): 87.060.10
scope:

Four test methods to accelerate the effects of long term indoor illumination on artists' paints are described as follows:

Test Method A - Exposure to natural daylight filtered through glass,

Test Method B - Exposure to irradiance from daylight fluorescent lamps,

Test Method C - Exposure in xenon-arc irradiance simulating daylight filtered through glass, and

Test Method D - Exposure to irradiance from cool white fluorescent lamps and soda-lime glass filtered fluorescent UV sunlamps.

These test methods are used to approximate the color change that can be expected over time in pigments used in artists' paints in normal indoor exposure.

NOTE 1 - The color changes that result from accelerated exposure may not duplicate the results of normal indoor exposure in a home or gallery. The relative resistance to change, however, can be established so pigments can be assigned to categories of relative lightfastness.

Lightfastness categories are established to which pigments are assigned based on the color difference between specimens before and after exposure.

Color difference units are calculated by the CIE 1976 L*a*b* color difference equation.

These test methods apply to artists' oil, resin-oil, acrylic emulsion, alkyd, watercolor paints, and gouache paints.

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

This standard does not purport to address 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.

Document History

June 1, 2010
Standard Test Methods for Lightfastness of Colorants Used in Artists’ Materials
Four test methods to accelerate the effects of long term indoor illumination on artists’ materials are described below. One of the natural daylight methods and one of the xenon-arc methods are used...
June 1, 2010
Standard Test Methods for Lightfastness of Colorants Used in Artists’ Materials
Four test methods to accelerate the effects of long term indoor illumination on artists’ materials are described below. One of the natural daylight methods and one of the xenon-arc methods are used...
July 1, 2006
Standard Test Methods for Lightfastness of Colorants Used in Artists’ Materials
Four test methods to accelerate the effects of long term indoor illumination on artists’ materials are described below. One of the natural daylight methods and one of the xenon-arc methods are used...
ASTM D4303
May 10, 2003
Standard Test Methods for Lightfastness of Colorants Used in Artists’ Materials
Four test methods to accelerate the effects of long term indoor illumination on artists' paints are described as follows: Test Method A - Exposure to natural daylight filtered through glass, Test...
May 10, 1999
Standard Test Methods for Lightfastness of Pigments Used in Artists' Paints
1. Scope 1.1 Four test methods to accelerate the effects of long term indoor illumination on artists' paints are described as follows: 1.1.1 Test Method A--Exposure to natural daylight filtered...
May 10, 1998
Standard Test Methods for Lightfastness of Pigments Used in Artists' Paints
A description is not available for this item.
June 10, 1997
Standard Test Methods for Lightfastness of Pigments Used in Artists' Paints
A description is not available for this item.
April 15, 1993
STANDARD TEST METHODS FOR LIGHTFASTNESS OF PIGMENTS USED IN ARTISTS' PAINTS
A description is not available for this item.
January 1, 1993
Standard Test Methods for Lightfastness of Pigments Used in Artists' Paints
A description is not available for this item.
March 15, 1992
STANDARD TEST METHODS FOR LIGHTFASTNESS OF PIGMENTS USED IN ARTISTS' PAINTS
A description is not available for this item.
September 15, 1991
STANDARD TEST METHODS FOR LIGHTFASTNESS OF PIGMENTS USED IN ARTISTS' PAINTS
A description is not available for this item.
July 27, 1990
STANDARD TEST METHODS FOR LIGHTFASTNESS OF PIGMENTS USED IN ARTISTS' PAINTS
A description is not available for this item.
April 28, 1989
STANDARD TEST METHODS FOR LIGHTFASTNESS OF PIGMENTS USED IN ARTISTS' PAINTS
A description is not available for this item.
June 24, 1988
STANDARD TEST METHODS FOR LIGHTFASTNESS OF PIGMENTS USED IN ARTISTS' PAINTS
A description is not available for this item.
September 26, 1986
STANDARD TEST METHODS FOR LIGHTFASTNESS OF PIGMENTS USED IN ARTISTS' PAINTS
A description is not available for this item.
May 31, 1985
STANDARD TEST METHODS FOR LIGHTFASTNESS OF PIGMENTS USED IN ARTISTS' PAINTS
A description is not available for this item.
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