Practice for Fluorescent Ultraviolet UV Exposure of Photodegradable Plastics

ASTM D 5208 Practice for Fluorescent Ultraviolet (UV) Exposure of Photodegradable Plastics [Pg.610]

This practice is technically equivalent to ASTM D 4329 (see above) that covers UV exposure of plastics intended for long-term use in outdoor applications. This procedure covers testing of photodegradable plastics intended to deteriorate rapidly when exposed to solar radiation, heat, moisture, and other degrading elements of the weather. [Pg.610]

Unless otherwise specified, the procedure recommends to control irradiance at [Pg.610]

The procedure recommends to employ Cycle A, B, or C, the last one for materials to be used for testing toxicity after exposure (no water spray to wash away products of photochemical degradation). [Pg.610]

4 h UV at black panel temperature of 50 3°C 4 h water spray at black panel temperature of 40 + 3°C. Cycle C [Pg.611]

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