Cargo Tank Inspection for Oil and Chemical Tanker Ship

Corrosion to the internal surfaces of cargo tanks is a fact of life on oil tankers, as the steel plates and supports are subjected to corrosive gases, crude oil acids, and seawater along with temperature fluctuations and structural flexing. The effect of the corrosion is to reduce the thickness of the steel plates and supports, leading eventually over a period of time to failure of the structure.
The procedure required for entering an oil tanker cargo tank is controlled by a Permit to Entry system, in the form of a standard checklist. I have listed the fundamental requirements below, which when actioned must be witnessed and signed by the Master or Chief Officer.

A Permit to Enter Cargo Tanks Certificate (PTEC) will be issued once the following checks have been carried out. (Remember, this is just an overview so consult oil tanker organizations such as the International Marine Organization (IMO), SOLAS or Oil Companies International Marine Forum (OCIMF) for current official procedures for entering cargo tanks.)

[donjon]

Ano po bang kadalasang ginagamit na cargo pump sa mga oil product tanker?

[zanace_merchantnavy]

Do these stairs get submerged when cargo is loaded?

[Titan_]

Accesing a cargo tank without checking O2 levels before entering = EPIC FAIL