15.4 Determination of increased filling limit
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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 15 — Filling Limits for Cargo Tanks - 15.4 Determination of increased filling limit

15.4 Determination of increased filling limit

  15.4.1 A filling limit greater than the limit of 98% specified in 15.3 may be permitted under the trim and list conditions specified in 8.2.17, providing:

  • .1 no isolated vapour pockets are created within the cargo tank;

  • .2 the PRV inlet arrangement shall remain in the vapour space; and

  • .3 allowances need to be provided for:

    • .1 volumetric expansion of the liquid cargo due to the pressure increase from the MARVS to full flow relieving pressure in accordance with 8.4.1;

    • .2 an operational margin of minimum 0.1% of tank volume; and

    • .3 tolerances of instrumentation such as level and temperature gauges.

  15.4.2 In no case shall a filling limit exceeding 99.5% at reference temperature be permitted.

Parent topic: Chapter 15 — Filling Limits for Cargo Tanks
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