Alert industry to nitrate stress corrosion risk from contaminated cooling water
Flixborough Inquiry · Flixborough Inquiry — Final Report · Issued 11 April 1975
Government responseNot tracked (historical inquiry)
DeliveryNo statement from the addressee found
Recommendation, verbatim from the inquiry
●Inquiry recommendation
The cracked Reactor R2525 initiated the sequence of events which led to disaster. Examination of the crack by expert metallurgists showed that the crack had been caused by nitrate stress corrosion. This corrosion was created because nitrate treated cooling water had been used in the past to dilute small leakages of cyclohexane from the plant. This phenomenon had not been appreciated by the management at the time the water was used and may not even yet be appreciated by other sectors of the chemical industry. Where such cooling water is used the vessels and piping should be adequately protected. The attention of industry should be drawn to the risk.
Flixborough Inquiry, Flixborough Inquiry — Final Report · 11 Apr 1975 Source PDF →
Government response
●No formal government response recorded
The Index has not yet recorded a verbatim government response to this recommendation.
Delivery
No statement on delivery from the addressee has been found in the sources searched. This is separate from the response above.
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