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Significance and Use
The image life of printed ink jet media in dark keeping conditions in typical office environments is pertinent to the end use of these materials. While natural aging is the most reliable method of assessing image stability, the length of time required makes this method impractical for most materials. As a result, accelerated tests often are used. This test practice is an accelerated short-term storage test that simulates long-term storage but at elevated temperatures. A room condition sample is also tracked to provide practical data. By measuring the time needed to obtain a predetermined color change at a variety of temperature conditions, the image life can be predicted using the Arrhenius method.
Note 2—The Arrhenius method is a predictive test based on mathematical extrapolation of high temperature tests to room temperature. In this test, long-term color changes are predicted by performing short-term tests at a series of high temperatures.
Since the ability of an ink jet print to withstand color changes is a function of temperature and humidity, it is important that dark stability be assessed under the conditions appropriate to the end use application. While ink jet prints may be handled and displayed under a variety of conditions, this test practice is intended to produce the color changes that may occur in ink jet prints upon dark keeping in typical office environments.
The accelerated procedure described in this test practice is intended to provide a means for predicting the life of an ink jet image under laboratory conditions. Test results are useful for specification acceptance between producer and user, for quality control, and for research and product development.
1.1 This practice describes an accelerated procedure intended to predict the lifetime of images stored in dark keeping conditions in typical office environments.
1.2 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D2244 Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
ANSI StandardsLimitations of Accelerated Image Stability Testing S. Anderson and D. Kopperl, Journal of Imaging Science and Technology, 37: 363373 (1993).
ICS Number Code 87.080 (Inks. Printing inks)
UNSPSC Code 43212104(Inkjet printers)
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ASTM F2037-00(2011), Standard Practice for Predicting the Lifetime of Ink Jet Prints Stored in Dark Keeping Conditions in Typical Office Environments, ASTM International, West Conshohocken, PA, 2011, www.astm.orgBack to Top