| 摘要 |
PROBLEM TO BE SOLVED: To provide a corrosion risk investigation method capable of investigating corrosion risk at higher detection sensitivity without requiring the labor of a preparation work for measurement.SOLUTION: In step S101, a sample solution is sampled at a target measurement point according to the wet-candle method, and the collected sample solution is, in step S102, solidified to obtain a solid sample. Then in step S103, the obtained solid sample is analyzed with the X-ray fluorescence analysis to obtain an amount of an element such as Na, Mg, and Cl configuring a corrosion causative substance (chloride). Then in step S104, a concentration of the corrosion causative substance flown to the measurement point is calculated from the obtained amount of the element. |
