We defined a way to ensure the safe operation of an AN pump by using a bowtie analysis method.

We defined minimum requirements for AN pumps

- Pump technology and features (features: VSD, rotation speed)

- Two independent barriers for high temperature / pressure at the pump outlet

- One barrier for acidity (barrier linked to tank operation)

- One barrier for contamination (barrier linked to tank operation)

- We defined a catalogue of procedure and design related safeguards, to complete this minimum requirements to achieve a sufficient level of safety.