17.6 Exclusion of air from vapour spaces
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Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.370(93) – Amendments to The International Code for The Construction and Equipment of Ships Carrying Liquefied Gases In Bulk (IGC Code) – (Adopted on 22 May 2014) - Annex - Amendments to The International Code for The Construction and Equipment of Ships Carrying Liquefied Gases In Bulk (IGC Code) - Chapter 17 — Special Requirements - 17.6 Exclusion of air from vapour spaces

17.6 Exclusion of air from vapour spaces

 Air shall be removed from cargo tanks and associated piping before loading and, then, subsequently excluded by:

  • .1 introducing inert gas to maintain a positive pressure. Storage or production capacity of the inert gas shall be sufficient to meet normal operating requirements and relief valve leakage. The oxygen content of inert gas shall, at no time, be greater than 0.2% by volume; or

  • .2 control of cargo temperatures such that a positive pressure is maintained at all times.

Parent topic: Chapter 17 — Special Requirements
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