Page 424 - International safety guide for oil tankers and terminals

INTERNATIONAL SAFETY GUIDE FOR OIL TANKERS AND TERMINALS

10. Cargo handling is being performed with the permanent installed pipeline
system.
over-pressurisation.รศึกษาเท่านั้น---
All cargo transfer should be through permanently installed pipeline systems on
board and ashore.
งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี
Should it be necessary, for specific operational reasons, to use portable cargo
lines on board or ashore, care should be taken to ensure that these lines are
correctly positioned and assembled in order to minimise any additional risks
associated with their use. Where necessary, the electrical continuity of these
lines should be checked and their length should be kept as short as possible.

The use of non-permanent transfer equipment inside tanks is not generally
permitted unless specific approvals have been obtained.
Whenever cargo hoses are used to make connections within the ship or shore
permanent pipeline system, these connections should be properly secured, kept
as short as possible and be electrically continuous to the ship and shore
pipeline respectively. Any hoses used must be suitable for the service and be
properly tested, marked and certified.

11. Where appropriate, procedures have been agreed for receiving nitrogen
supplied from shore, either for inerting or purging ship’s tanks, or for line
clearing into the ship.

Ship and shore should agree in writing on the nitrogen supply, specifying the
volume required, and the flow rate in cubic metres per minute. The sequence of
ึ
opening valves before beginning the operation and after completion should be
---ใช้เพื่อกา
agreed, so that the ship remains in control of the flow. Attention should be given
to the adequacy of open vents on a tank in order to avoid the possibility of

The tank pressure should be closely monitored throughout the operation.

The ship’s agreement should be sought when the terminal wishes to use
compressed nitrogen (or air) as a propellant, either for pigging to clear shore
lines into the ship or to press cargo out of shore containment. The ship should
be informed of the pressure to be used and the possibility of receiving gas into
a cargo tank.

Part ‘D’ – Bulk Liquefied Gases – Verbal Verification

1. Material Safety Data Sheets are available giving the necessary data for the
safe handling of the cargo.
Information on each product to be handled should be available on board the
ship and ashore before and during the operation.
Cargo information, in a written format, should include:
A full description of the physical and chemical properties necessary for the
safe containment of the cargo.
Action to be taken in the even of spills or leaks.
Countermeasures against accidental personal contact.
Fire-fighting procedures and fire-fighting media.
Any special equipment needed for the safe handling of the particular
cargo(es).
Minimum allowable inner hull steel temperatures.
Emergency procedures.

390 © ICS/OCIMF/IAPH 2006