| 摘要 |
<P>PROBLEM TO BE SOLVED: To simply remove organic matter deposited on a detection part without complicating a structure for removing organic matter and to reduce the labor of maintenance for keeping measurement accuracy high. <P>SOLUTION: According to this residual chlorine concentration measuring method, the detection part 10 of a chlorine meter 9 is immersed in circulating water 3 circulating around a water tank 1 and a filtering device 2 to measure the concentration of residual chlorine, a conditioner for chlorine dioxide addition is thrown into the circulating water on the downstream side of the water tank and on the upstream side of the place where the detection part is immersed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
