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ISO (Internationale Organisatie voor Standaardisatie) is een wereldwijde alliantie van nationale normalisatie-instellingen (ISO-leden). De ontwikkeling van internationale normen wordt meestal uitgevoerd door technische ISO-commissies. Elke aangesloten instelling die geïnteresseerd is in een onderwerp waarvoor een technische commissie is ingesteld, heeft het recht om in die commissie vertegenwoordigd te zijn. Internationale gouvernementele en niet-gouvernementele organisaties die samenwerken met ISO zijn ook bij dit werk betrokken. ISO werkt nauw samen met de Internationale Elektrotechnische Commissie (IEC) over alle kwesties van elektrische standaardisatie.
The draft international standard adopted by the Technical Committee will be circulated to the member bodies for voting. Publicatie als internationale standaard vereist goedkeuring van ten minste 75% van aangesloten instellingen.
The international standard ISO 12040 was developed by the Technical committee ISO/TC 130, Graphic Technology.
Annex A to this standard is for reference only.
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The method described in this standard for assessing light resistance using blue wool references is technically consistent with the method given in ISO 2835. Echter, according to the latter, natural light should be used to obtain a valid evaluation of light resistance. This standard describes accelerated test methods by specifying light sources and filters for daylight simulation and by exposing test samples to artificial sunlight.
In aanvulling, the international standard is partially consistent with ISO 105-B02. For more information on equipment and test methods, ISO 105-B02 is recommended as a reference.
ISO 12040-1997 – Printing technology – Assessment of light resistance of printed matter and printing inks using filtered xenon arc lamps
1 Bereik
This standard specifies a method for evaluating the light fastness of printed matter and printing inks by giving
– General test requirements for printed matter;
– Special test requirements for inks.
This standard applies to all printing substrates, zoals papier, karton, metaal (thin metal sheets and sheets) and plastic film, as well as to all printing processes.
2 Normatieve verwijzingen
The following standards contain provisions that, door verwijzing hierin, constitute the provisions of this International Standard. At the time of publication, the version shown is valid. All standards are subject to revision and parties to an agreement based on this international standard are encouraged to investigate the possibility of applying new versions of the following standards. IEC and ISO members maintain a register of currently valid international standards.
ISO 105-A02:1993, Textiles. Colour fastness testing – Part A02: Grayscale for evaluating colour change.
ISO 105-B02:1994, Textiles. Colour fastness testing – Part B02: Colour fastness to artificial light: xenon arc fading lamp test.
ISO 2834:1981, printing inks. Preparation of standardized prints for the determination of tolerance to physical and chemical agents.
ISO 3664:1975, Fotografie – View the lighting conditions of colour transparencies and their reproductions.
ISO 12040-1997 – Printing technology – Assessment of light resistance of printed matter and printing inks using filtered xenon arc lamps
3 Definition
For the purposes of this standard, the following definitions apply.
3.1 Light resistance of printed matter to filtered xenon arc light
The resistance of printed matter to the effects of fixed light sources (filtered xenon arcs) is not directly affected by the weather.
3.2 Light fastness of printing ink
Evaluate the resistance of standard printed matter according to the instructions for printed matter in this international standard.
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