An Australian company has been fined for a sulphuric acid valve failure that led to the amputation of a worker's leg.It appears that when employees went to check the cause of of an acid line choke, a valve failed and sprayed them with concentrated sulphuric acid.Investigation determined that the valve that failed was not of correct material of construction and was designed to carry 40% sulphuric acid. This resulted in the failure of the valve. Often material changes go unnoticed till a catastrophe happens. Ensure your management of change process and your inspection procedures are stringent.
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