9 Tank Entry
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1401 – Guidelines on Tank Entry for Tankers Using Nitrogen as an Inerting Medium – (9 June 2011) - Annex – Guidelines on Tank Entry for Tankers Using Nitrogen as an Inerting Medium - 9 Tank Entry

9 Tank Entry

 After the tank entry requirements have been met, the tank may be entered by the work party. While persons are working in the space, safe working conditions must be maintained. Particular attention should be given to the following:

  • .1 the responsible person should ensure that the atmosphere is continuously monitored and order the evacuation of the space if the safe limits are exceeded, or if there is any doubt about it, at any stage of the operation;

  • .2 ventilation must be provided during the entire period of the operation. Where necessary, portable ducting should be provided to ensure a good supply of air to the actual working area inside the space;

  • .3 the responsible person should ensure that all identified risk mitigation measures are being enforced;

  • .4 the attendant should be in continuous attendance at the entrance to the tank;

  • .5 the responsible person should be aware of the location of every person in the tank at all times. The work party should stay together whenever possible;

  • .6 safety harnesses should be worn at all times when working in tanks;

  • .7 rescue equipment should be rigged and ready for use throughout the operation and persons assigned to the rescue party should be readily available; and

  • .8 access openings should be kept open and clear for emergency exit at all times.

Parent topic: Annex – Guidelines on Tank Entry for Tankers Using Nitrogen as an Inerting Medium
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