| 摘要 |
PROBLEM TO BE SOLVED: To provide a monitoring system which is not influenced by the contamination of an inflow-side pipe in a gas measuring apparatus and which is not influenced by the temperature and the humidity of ammonia or amines in a gas to be measured. SOLUTION: An inflow-side pipe in a color reaction tape-type gas measuring apparatus is purged by a gas, as a gas to be measured, which is passed through a purification port on which a gaseous-chamical-substance capturing body is mounted. A gas which contains a gaseous chemical substance from a selected measuring port is sucked in advance by the inflow-side pipe in the color reaction tape-type gas measuring apparatus. A measurement is performed, and the measured result of the color reaction tape-type gas measuring apparatus is stabilized. In this monitoring system, the temperature and the humidity of the concentration of a gaseous chemical substance in a gas are corrected.
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