| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for measuring dust method capable of properly measuring the dust scattered into the atmosphere from coal or ore accumulation yard, or the like to fall in the surrounding. SOLUTION: In the dust measuring method for exposing a transparent pressure-sensitive adhesive tape 13 to a measuring environment for bonding dust to the pressure-sensitive adhesive tape 13 and measuring the light transmittance of the pressure-sensitive adhesive tape 13 by a light transmittance meter 16, the light transmittance of the pressure-sensitive adhesive tape 13 prior to being exposed to the measuring environment is preliminarily measured as initial light transmittance A, while the light transmittance of the pressure-sensitive adhesive tape 13 exposed to the measuring environment to bond the dust is measured as light transmittance B after exposure, and the dust is calculated, on the basis of the ratio A/B of the initial light transmittance and the light transmittance B after exposure. COPYRIGHT: (C)2008,JPO&INPIT
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