Sunshine weather meter
- Light source: Sunshine carbon arc lamp
- Suga Test Instruments Co., Ltd. WEL-SUN-DC
This experimental laboratory is aimed at evaluating weather resistance of the exterior wall by artificially generating ultraviolet and radiating it to the wall. Discoloration of the test piece is accelerated by exposing it to the artificial solar light. We quantitatively measure discoloration of the test piece with a color-difference meter. We estimate the actual discoloration based on the result of this measurement.
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