Page 414 - International safety guide for oil tankers and terminals

INTERNATIONAL SAFETY GUIDE FOR OIL TANKERS AND TERMINALS

15. All cargo, ballast and bunker tank lids are closed.
---ใช้เพื่อการศึกษาเท่านั้น---
Apart from the openings in use for tank venting (see Question 29), all openings
to cargo, ballast and bunker tanks should be closed and gas tight.
Except on gas tankers, ullaging and sampling points may be opened for the
machinery spaces are closed. Engine room vents may be open.ณิชย์นาวี
short periods necessary for ullaging and sampling, which activities should be
conducted taking account of the controls necessary to avoid electrostatic
discharge.

Closed ullaging and sampling systems should be used where required by
international, national or local regulations and agreements.

16. Sea and overboard discharge valves, when not in use, are closed and visibly
secured.
Experience shows the importance of this item in pollution avoidance on ships
where cargo lines and ballast systems are interconnected. Remote operating
controls for such valves should be identified in order to avoid inadvertent
opening.
checked:งสมุด ศูนย์ฝกพา
If appropriate, the security of the valves in question should be checked visually.

17. All external doors, ports and windows in the accommodation, stores and

External doors, windows and portholes in the accommodation should be closed
ึ
during cargo operations. These doors should be clearly marked as being
required to be closed during such operations, but at no time should they be
locked.
This requirement does not prevent reasonable access to spaces during
operations, but doors should not be left open when unattended.
Engine room vents may be left open. However, consideration should be given to
closing them where such action would not adversely affect the safe and efficient
operation of the engine room spaces served.

18. The ship’s emergency fire control plans are located externally.
A set of fire control plans should be permanently stored in a prominently
marked weather-tight enclosure outside the accommodation block for the
assistance of shoreside fire-fighting personnel. A crew list should also be
included in this enclosure.
งานห้อ All recording equipment should be switched on, tested as per manufacturer’s
If the ship is fitted, or is required to be fitted, with an inert gas
system (IGS), the following points should be physically

19. Fixed IGS pressure and oxygen content recorders are working.

instructuctions and operating correctly.

20. All cargo tank atmospheres are at positive pressure with oxygen content of
8% or less by volume.

Prior to commencement of cargo operations, each cargo tank atmosphere
should be checked to verify an oxygen content of 8% or less by volume. Inerted
cargo tanks should be kept at a positive pressure at all times.

380 © ICS/OCIMF/IAPH 2006