| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas measuring instrument of inexpensive constitution capable of evaluating and measuring a reduction means of a diffused substance, and capable of keeping a predetermined necessary conditions that are required for measurement. SOLUTION: The gas measuring instrument is constituted such that a volatile substance is supplied into a third container 19 from a first outlet 3, because the temperature inside a first container 1 is controlled to a predetermined temperature to keep on supplying and chemically measurable stable clean air in the third container 19. COPYRIGHT: (C)2008,JPO&INPIT
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