| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To present the state having high sterilizing power and low corrosiveness using features of free chlorine and bound chlorine by remaining the free chlorine and bound chlorine in target water in a balanced manner. <P>SOLUTION: In the state determination method of water, a chlorine-based oxidizing agent for early providing sufficient free chlorine concentration and sulfamic acid or its salt are added individually to the target water, and it is determined whether the residual free chlorine concentration and residual whole chlorine concentration are in a balance state of a predetermined range, especially it is determined with a peculiar management expression. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
