| |

Procedures and precautions for Tank Cleaning and Gas free Operation for Oil tankers 

Tank cleaning – The process of removing hydrocarbon vapours, liquids or residues. Tank cleaning may be required for one or more of the following reasons: Responsibility : The Chief Officer is in charge of and shall supervise as the person in charge of the Tank Cleaning, Hydrocarbon Gas (HC) Purging, Gas Freeing & Re-Inerting operations. He shall…

Crude Oil Washing (COW) onboard Ships – Explained

Piping System with respect to Crude Oil Washing: The pipeline and valves incorporated in the crude oil washing system shall be of steel or equivalent material and shall have adequate strength having regard to the pressure it may be subjected and shall be properly jointed and supported. The crude oil washing system should contain permanent…

ROR Cards

ROR Cards – also called Rules of the Road cards are very helpful for learning perspective. These cards show the view forward from the deck of various vessels (power, sailing and fishing) of developing traffic situations at sea. In each case the mariner has to decide the correct course of action to navigate his vessel…

What is Marine Chronometer and It’s Working

Not too long ago chronometers were the only instrument used on board ships for accurate timekeeping for purpose of navigational calculation. Some older ships used to carry two chronometers as a safeguard against mechanical failure or accident. Even chronometers have not escaped the advancement of science and the older version of winding chronometers are being…

20 Important Ship Prefixes

A Ship prefix is a combination of letters, usually abbreviations, used in front of the name of a civilian or naval ship that has historically served numerous purposes, such as identifying the vessel’s mode of propulsion, purpose, or ownership/nationality. Today the common practice is to use a single prefix for all warships of a nation’s navy, and other prefixes for auxiliaries…

What is ISPS Code – (International Ship and Port Facility Security Code)

ISPS Code is International Ship and Port Facility Security Code an amendment to the Safety of Life at Sea (SOLAS) Convention (1974/1988) on Maritime security including minimum security arrangements for ships, ports and government agencies. Having come into force in 2004, it prescribes responsibilities to governments, shipping companies, shipboard personnel, and port/facility personnel to “detect security threats and take preventive measures against security incidents…