What could have been done for process safety management to prevent the incident

Question

What could have been done for process safety management to prevent the incident in Example # 15:

Example # 15

Stainless Steel (SS) thermowells (a thermowell contains a thermocouple which measures temperature) were installed in a glass-lined distillation column. The process material was a very corrosive lagrimator (tear gas). Hastelloy C was the prior MOC of the thermowells. Within one hour the thermowells failed and caused an environmental incident. Birds fell out of the sky; there were offsite complaints and cars had to be painted that were in the nearby company parking lot.  

Also improper fabrication can cause failures.

Explanation / Answer

When the material being installed are that much dangerous if failed they must have been thoroughly checked before installing them . Proper safety precautions must have been taken so that when the thermowell fails immediately it is prevented from spresing to the environment like shielding the place . Trained professionals must have been employed to perform the task . These precaution can prevent such incidents to the maximum extent.

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