Using an approved simulator, in the laboratory, or aboard ship, given access to a running fuel oil or lube oil purifier.

Performance requirement

Behavior Standard
The student will: During assessment, the student shall, at a minimum:

Secure the purifier oil heater

Secure purifier

Close purifier suction valve

Stop purifier motor

Use bowl brake to bring bowl to stop

Secure piping system

Close discharge valve

Close other valves as required


Assessed in EN‑3233 Steam and Gas Turbines.


  1. Table A-III/1 OICEW-A4.1
  2. NVIC 17-14 Task 4.1.A

See the Assessment Guidelines for additional specifications of behavior and standards.