| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a filter for trapping a granular substance capable of efficiently trapping a granular substance and a granular substance sampler using the filter. <P>SOLUTION: The filter 1 for trapping a granular substance comprises a porous layer 2 of a fluorine resin and a ventilative reinforcing layer 3 formed in one face side of the porous layer 2 and the reinforcing layer 2 is formed using a porous resin material with low electric charge-ability. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
