| 摘要 |
PROBLEM TO BE SOLVED: To effectively reproduce an aging contamination of a building outer wall or the like, and realize a reliable contamination-resistant evaluation. SOLUTION: First test pieces (3), (3) are disposed on a top plate (7) of a frame (2) such that a rain drops directly thereon, thereby reproducing a contamination of an evaluation object caused by rainy lines. Furthermore, second test pieces (4), (4) are disposed below the top plate (7) of the frame (2) such that they avoid the rain, thereby reproducing a contamination of the evaluation object caused by deposition of contaminants. COPYRIGHT: (C)2006,JPO&NCIPI
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