A study on electrostatic hazards during handling volatile organic solvents - measurements of Electric Charge of pouring Liquid Through Ball-Valve and Mitigation Electric Charge;; 有機溶剤の取扱いにおける静電気危険性に関する研究 ―ボールバルブからの液体小分け時の電荷量測定および電荷軽減策の検討―
Lesson on the management risk which exists in a background of an accident 3;; 事故の背景に存在する管理面の教訓 ―その3 運転管理―
The espoused values of plant sites having good safety culture based on hierarchy interviews of safety competency third person assessment ;; 階層別インタビューに基づく安全文化優良事業所の価値観