Tanker Spills Prevention by Design (1991) / Chapter Skim
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Appendix A: MARPOL 73/78 Annex I
Appendix A: MARPOL 73/78 Annex I
Pages 199-207
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From page 199... ...
Coast Guard Commandant Instruction M16455, August 30, 19851.
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From page 200... ...
CHAPTER 111—REQUIREMENTS FOR Ml~lhtlZING OIL POLLUTION FROM OIL TANKERS DUE TO SIDE AbJD 80110 M DAMAGES Re~a~ 22 Damage Assumptions (1) For the purpose Calculating hypothetical oil outflow from oil tanlccrs, three dimensions of the extent of damage of a parallelepiped on talc side and bottom of the ship arc assumed as follows In the case of bottom damages two conditions arc set forth to be applied individually to the stated portions of the oil tanker.
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From page 201... ...
adjacent to such space, multiplied by Si as defined below and taking for all other wing tanks involved in such a collision the value of the actual full volume. ~Sj = l -i where Q j ~ length in metres of void space or segregated ballast tank under cor~sideration.
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From page 202... ...
(5) An Administration may credit as reducing oil outflow in case of bottom damage, an installed cargo transfer system having an emergency high suction in each cargo oil tank, capable of transferring from a breached tank or tanks to segrcgated ballast tanks or to available cargo tankage if it can be assured that such talks will have suffieicnt ullagc.
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From page 203... ...
However, in segregated ballast oil tankers as defined in Regulation 13 of this Annex, the permitted volume of a wing cargo oil tank situated between two segregated ballast tanks, each exceeding tic in length, may be increased to the maximum limit of hypothetical oil outflow provided that the width of the wing tanks exceeds le.
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From page 204... ...
of this Regulation, for any operating draught reflecting actual partial or full load conditions consistent with trim and strength of the ship as well as specific gravities of the cargo. Such damage shall be applied to all conceivable locations along the Icngth of the ship as follows: (a)
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From page 205... ...
and (b) of this Regulation, transverse watertight bulkheads shall be spaced at least at a distance equal to the longitudinal extent of assumed damage specified in subparagraph (a)
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From page 206... ...
The final waterline, taking into account sinkagc, heel and tom, shall be below the lower edge of any opening through which progressive flooding may talce place. Such openings shall include air pipes and those which arc closed by means of weathertight doors or hatch covers and may exclude those openings closed by means of watertight manhole covers and flush scuttles, small watertight cargo tanlc hatch covers which maintain the high integrity of the deck, remotely operated watertight sliding doors, and side scuttles of the non-opcnmg type.
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From page 207... ...
· The pcnncability of partially fillet compartments shall be consistent with the amount of liquid earned in the compartmcut. Whenever damage penetrates ~ tank containing liquids, it shall be assumes that the contents arc completely lost From that compartment and repis~cod by salt water up to the k~cl of the final plane of cquilibnum.
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