ASTM F1945

1.1 This practice covers an accelerated procedure intended to determine the lightfastness of ink jet prints in office environments where overhead fluorescent light is used for illumination.

1.2 This practice describes two methods based on Method II and Method III from D 4674, in which specimens are exposed to cool white VHO fluorescent lamps (Method II) and cool white fluorescent lamps (Method III) under controlled environmental conditions.

1.3 Two criteria are used to determine relative lightfastness: color change and optical density.

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. Specific precautionary statements are given in Section .

1.4 There is no known ISO equivalent standard.

2. Referenced Documents

ASTM Standards
D1729 Practice for Visual Appraisal of Colors and Color Differences of Diffusely Illuminated Opaque Materials
D2244 Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
D3424 Test Methods for Evaluating the Relative the Lightfastness and Weatherability of Printed Matter
D4674 Practice for Accelerated Testing for Color Stability of Plastics Exposed to Indoor Office Environments
G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
G141 Guide for Addressing Variability in Exposure Testing on Nonmetallic Materials
G151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices That Use Laboratory Light Sources
G154 Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials
ANSI Standard
IT2.17–1995AnnexA1 Density Measurements-Part 4: Geometric Conditions for Reflection Density, Backing Material

Index Terms

lightfastness; ink jet prints; indoor fluorescent light; ICS Number Code 87.080 (Inks. Printing inks)

Citing ASTM Standards

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