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Paints and varnishes. Methods of exposure to laboratory light sources -- Open-flame carbon-arc lamps
This part of ISO 16474 specifies methods for exposing specimens to open-flame carbon-arc lamps in the presence of moisture to reproduce the weathering effects that occur when materials are exposed in actual end-use environments to daylight or to daylight filtered through window glass.
The specimens are exposed to filtered open-flame carbon-arc light under controlled conditions (temperature, humidity and/or wetting).
Different types of filters are used to simulate either:
Specimen preparation and evaluation of the results are covered in other International Standards for specific materials.
General guidance is given in ISO 16474-1.
NOTE Open-flame carbon-arc exposures for plastics are described in ISO 4892-4.
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