・to put a label ""nonconformance"" onto nonconformance parts (electrical cable containing lead) at receiving
・to put a divider to segregate nonconformance parts and materials that contain prohibited substances in the storage area
・At receiving, the company analyzes open recycled materials for each lot by XRF analysis equipment and verifies if prohibited substances do not exceed a threshold value due to inconsistency of concentration
・For conducting the effectual management method to prevent contamination by incorrect use or admixture, the management method has to be in such a manner that anyone working in management doesn't make any mistake (ex. labeling, specialization, limiting the person in charge, etc.) "