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EXPLANATORY NOTES

Ship type: 1, 2 or 3 indicates Ship Types I, II, or III, respectively as discussed in II.A-Physical Protection.

Tank type: 1-Independent; 2-Integral tank; G-Gravity tank; P-Pressure tank.

Tank vents: Open-Open vent; Cont-Controlled venting; SR-Safety Relief Valve.

Electrical: St-Standard electrical systems; SP-Special requirements.
Gauging: 0-Open; R-Restricted; C-Closed.

Vapour detection: I-Inflammable vapours; T-Toxic vapours.

Fire protection: A-Alc. foam deck system; B-Reg. foam deck system; CWater spray; D-Dry chemical.

Footnote: (1) Dry chemical may be used as an alternative to either alcohol or regular foam.

CHAPTER VII-LIST OF CHEMICALS TO WHICH THE CODE DOES NOT APPLY

In the following are listed certain products which are not cnosidered to come within the scope of the Code. The list may be used as a guide in considering bulk carriage of products whose hazards have not yet been evaluated.

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ANNEX III

PROPOSAL FOR REQUIREMENTS
RELATING TO TANK ARRANGEMENTS AND
TO THE LIMITATION OF TANK SIZE

Preamble

The conditions of damage assumed herein draw upon research conducted by the Sub-Committee on Ship Design and Equipment and by the Sub-Committee on Subdivision and Stability into damage experienced in casualties (and takes in as high a percentage as is considered practicable of the damages which may be expected in such an event). Practical means of reducing the massive release of cargo which might still be possible in the most extreme cases of collision or stranding can best be covered by improved provisions and arrangements for salvage.

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In the following paragraphs three dimensions of the extent of damage of a rectangular shape due to both collision and stranding are assumed. In the case of stranding, two conditions are set forth to be applied individually to the stated portions of the ship. These values represent the maximum assumed damage in such accidents and are to be used to determine by trial at all conceivable locations the worst combination of compartments which would be breached by such an accident.

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2.

whichever is less, for any part of the ship

where: L, B in metres and perpendicular are as

defined in Regulation 3 of the International

Convention on Load Lines, 1966

Hypothetical Oil Outflow from Tanks Assumed to be Breached as a Result of the Accident

The hypothetical oil outflow in the case of collision (0) and stranding (g) should be calculated by the following formulae with respect to compartments breached by oach assumed location of damage as defined in Section 1.

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W

(2)

3

breached by the

= volume of a wing tank in m
damage assumed in Section 1; Wi for a clean
ballast tank may be taken equal to zero,

3

= volume of a centre tank in m breached by
the damage assumed in Section 1; C, for a
clean ballast tank may be taken equal to zero,

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