Overview
Deepak DWT accelerated weathering tester is a laboratory simulator of the damaging effects of weather. It is used to predict the relative durability of materials exposed to the outdoor environment. Rain and dew are simulated by a revolutionary condensation system. The damaging effects of sunlight are simulated by fluorescent UV lamps. Exposure temperature is automatically controlled, as the daily sequence of UV periods and condensation periods. Testing duration of deterioration effect can be reduce by DWT which may occur in a longer period like a month or years of outdoor exposure. Deterioration observed includes fading, chalking, cracking, crazing, hazing, blistering, gloss lose, strength lose, and embitterment.
Specifications
Light source | Fluoresent UV-B type lamp with wavelength of 313 nm. |
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UV lamps | 40 w, 08 nos. |
Panel temp. range | ambient to 90°C |
Panel temp. accuracy | ±2°C |
Water/condensation temp. range | ambient to 90°C |
Test capacity | Provision of holding 22 specimen of size 75 x 300 mm |
Test specifications | ASTM G 53, ASTM D 4329, ASTM D 5208, ISO 4892 and other relevant national and international standards. |
Power requirement | 220/230 V AC, 50 Hz Single Phase |