ASTM_F_2366_-_12.pdf

Designation:F236612Standard Practice forDetermining the Relative Lightfastness of Ink Jet PrintsExposed to Window Filtered Daylight Using a Xenon ArcLight Apparatus1This standard is issued under the fixed designation F2366;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers specific procedures and test condi-tions that are applicable for xenon-arc exposure of ink jetmedia prints conducted in accordance with Practices G151 andG155.The laboratory accelerated procedure is intended todetermine the relative lightfastness of ink jet prints in officeenvironments where window filtered daylight is used forillumination.1.2 The two criteria used to determine relative lightfastnessare instrumental color change and change in optical density.1.3 This practice is useful in determining the relativelightfastness of a series of prints or the relation of thelightfastness of the print of interest to the performance ofcontrols with known lightfastness exposed simultaneously.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.Specific precau-tionary statements are given in section 8.1.5 There is no equivalent ISO standard.2.Referenced Documents2.1 ASTM Standards:2D1729 Practice for Visual Appraisal of Colors and ColorDifferences of Diffusely-Illuminated Opaque MaterialsD2244 Practice for Calculation of Color Tolerances andColor Differences from Instrumentally Measured ColorCoordinatesD3424 Practice for Evaluating the Relative Lightfastnessand Weatherability of Printed MatterE1347 Test Method for Color and Color-Difference Mea-surement by Tristimulus ColorimetryE1348 Test Method for Transmittance and Color by Spec-trophotometry Using Hemispherical GeometryE1349 Test Method for Reflectance Factor and Color bySpectrophotometry Using Bidirectional(45:0 or 0:45)GeometryG113 Terminology Relating to Natural and Artificial Weath-ering Tests of Nonmetallic MaterialsG151 Practice for Exposing Nonmetallic Materials inAccel-erated Test Devices that Use Laboratory Light SourcesG155 Practice for Operating Xenon Arc Light Apparatus forExposure of Non-Metallic Materials2.2 ANSI Standard:ANSI/NAPM IT9.9-1990 Stability of Color PhotographicImages-Methods for MeasuringIT2.171995 ANNEX A1 Density MeasurementsPart 4:Geometric Conditions for Reflection Density,BackingMaterial3.Terminology3.1 Definitions:3.1.1 The definitions given in G113 are applicable to thisPractice.3.1.2 Ink jet media substrates used by ink jet printers toreceive inks.The substrate may be paper,plastic,canvas,fabric,or other ink receptive material.The substrate may,ormay not be,coated with one or more ink receptive layers.4.Summary of Practice4.1 Printed ink jet media are exposed to radiant energy froma xenon arc light source equipped with a Window-Glass Filter.4.2 The duration of the exposure may vary widely depend-ing on the lightfastness of the ink/media.4.3 During the course of the exposure,changes in color andoptical density in the printed samples are periodically evalu-ated.Color changes are determined either visually by compari-son with the unexposed file specimens or instrumentally bycomparison with the color of the same specimen prior to1This practice is under the jurisdiction of ASTM Committee F05 on BusinessImaging Products and is the direct responsibility of Subcommittee F05.07 on Ink JetImaging Products.Current edition approved Oct.1,2012.Published November 2012.Originallyapproved in 2005.Last previous edition approved in 2011 as F236605(2011).DOI:10.1520/F2366-12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 exposure and reported as color difference,E.The colorchanges of a series of prints are compared with each other orwith those of a control exposed at the same time for whichperformance under use conditions are known.The change inoptical density is determined instrumentally and reported aspercent retained optical density.4.4 The exposure may be continued for a specific durationof time,or until a predetermined color change and change inoptical density has been achieved.5.Significance and Use5.1 Lightfastness of printed ink jet media for specifiedperiods of time is pertinent to the end use of these materials.Since the ability of ink jet prints to withstand color changes isa functi