This part of ISO 105 specifies a method intended for detecting and assessing Change in colour, after brief exposure to light, of coloured textiles which Change in colour on exposure to light but which virtually return to their original shade when stored in the dark.
NOTE 1 This phenomenon used to be termedphototropism, but the term phototropism is much more widely used in biological science where its meaning is entirely different. As the derivation of phototropism is in accord with its biological meaning, the term photochromism is preferable for reversible colour changes induced by light.
Diese ÖNORM beschreibt ein Prüfverfahren zur Erkennung und Bestimmung der bei kurzzeitiger Einwirkung von Licht zeitweilig auftretenden Änderung der Farbe von Textilien aller Art. Diese Farbänderung kehrt beim Lagern im Dunklen scheinbar wieder zum Originalfarbton zurück.