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01. |
Poor Value Perception |
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02. |
Poor Safety Awareness |
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03. |
Inadequate Risk Recognition |
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04. |
Ignorance of Procedure |
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05. |
Disregard of Procedure |
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06. |
Excessive High Speed at Lowering Temperature |
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07. |
Planning and Design |
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08. |
Poor Planning |
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09. |
Repair Planning |
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10. |
Usage |
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11. |
Maintenance/Repair |
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12. |
Insufficient Tightening Force |
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13. |
Malfunction |
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14. |
Poor Hardware |
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15. |
Flange Leakage |
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16. |
Secondary Damage |
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17. |
External Damage |
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18. |
Leakage/Fire |
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![](../dfen/DC1200061.jpg)
Leakage and fire of gas from lower piping of a heating furnace for start-up at an ammonia manufacturing plant
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Knowledge Comment: |
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Protection of a flange leakage at high-temperature and high-pressure part is based on the quantative tightening force control and adequate speed of temperature rise/down. |
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