ISO 12040-1997 Printing technology – Assessment of light resistance of prints and printing inks using filtered xenon arc lamps


ISO (International Organization for Standardization) is a global alliance of national standards bodies (ISO member bodies). The development of international standards is usually carried out through ISO technical committees. Each member institution interested in a subject on which a technical committee has been established has the right to be represented on that committee. International governmental and non-governmental organizations liaising with ISO are also involved in this work. ISO works closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

The draft international standards adopted by the Technical Committee will be circulated to member bodies for voting. Publication as an international standard requires approval by at least 75% of member bodies.

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.

ISO 12040-1997 Printing technology – Assessment of light resistance of prints and printing inks using filtered xenon arc lamps

The methods described in this standard for evaluating light resistance using blue wool references are technically consistent with those given in ISO 2835. However, 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 addition, the international standard is partially consistent with ISO 105-B02. For more information on equipment and test methods, it is recommended to refer to ISO 105-B02.

1 range
This standard specifies a method for assessing the light fastness of prints and printing inks by giving

– General test requirements for printed matter;

— Special testing requirements for inks.

This standard applies to all printing substrates such as paper, board, metal (sheet metal and sheet metal) and plastic film and all printing processes.

2 Normative references
The following standards contain provisions which, by reference, 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 international standards currently in force.

ISO 105-A02:1993, Textiles. Tests for colour fastness – Part A02: Greyscale for assessing colour change.

ISO 105-B02:1994, Textiles. Tests for colour fastness – 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, Photography – View the lighting conditions of colour transparencies and their reproductions.

ISO 12040-1997 Printing technology – Assessment of light resistance of prints 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

Printed matter is resistant to the effects of fixed light sources (filtered xenon arcs) and is not directly affected by the weather.

3.2 Light fastness of printing ink

To assess the resistance of standard printed matter according to the instructions for printed matter in this international Standard.

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