Page 371 - International safety guide for oil tankers and terminals

COMMUNICATIONS

Shore tank(s) to be filled.
Ship’s tank(s) to be discharged.
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Lines to be used ship/shore.
Cargo transfer rate.
Operating pressure.
Bunkering or storing operations.ูนย์ฝกพาณิชย์นาวี
Maximum allowable pressure.
Temperature limits.
Venting systems.
Sampling procedures.
Restrictions necessary because of:
Electrostatic properties.
Use of automatic shutdown valves.

The discharge plan should include details and expected timing of the following:

The sequence in which the ship’s tanks are to be discharged, taking account of:
Ship and shore tank change over.
Avoidance of contamination of cargo.
Pipeline clearing for discharge.
Crude oil washing, if employed, or other tank cleaning.
Other movements or operations which may affect flow rates.
Trim and freeboard of the tanker.
The need to ensure that permitted stresses will not be exceeded.
Ballasting operations.
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The initial and maximum discharge rates, having regard to:
The specification of the cargo to be discharged.
The arrangements and capacity of the ship’s cargo lines, shore pipelines and
tanks.
The maximum allowable pressure and flow rate in the ship/shore hoses or
Emergency stop procedure.ศ
arms.
Precautions to avoid accumulation of static electricity.
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Any other limitations.

A bar diagram may be a helpful means of depicting this plan.

Once the discharge plan has been agreed, it should be signed by the Responsible
Officer and the Terminal Representative.

22.7 Agreement to Carry Out Repairs

22.7.1 Repairs on the Tanker

When any repair or maintenance is to be done on board a tanker moored
at a berth, the Responsible Officer must inform the Terminal
Representative. Agreement should be reached on the safety precautions
to be taken, with due regard to the nature of the work.

22.7.1.1 Immobilisation of the Tanker
While a tanker is berthed at a terminal, its boilers, main engines,
steering machinery and other equipment essential for
manoeuvring should normally be kept in a condition that will
permit the tanker to be moved away from the berth in the event of
an emergency.

© ICS/OCIMF/IAPH 2006 337