| 摘要 |
PROBLEM TO BE SOLVED: To provide a harmful material determination method capable of rapidly inspecting and determining the presence of the present possibility of a chromate film, which has the possibility that hexavalent chromium, set to a target of control by RoHS (Restrictions of the Certain Hazardous Substances) order, is detected in an inspection target comprising various materials, a product and parts, in a non-destructive manner, and to provide a harmful material determining device. SOLUTION: The presence of chromium is inspected by using characteristic X rays excited by X rays; and when chromium is detected, it is determined that there is a possibility the presence of chromium is determined, when at least any one of the conditions that chromium be at a certain characteristic value or lower, aluminum be a certain characteristic value or higher, copper be a certain characteristic value or higher, zinc be a certain characteristic value or higher and nickel is a certain characteristic value or higher is satisfied. COPYRIGHT: (C)2007,JPO&INPIT
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