VNET in Bunker Survey
Feb05

VNET in Bunker Survey

What is VNET in Terms of Bunker Survey? Remembered that unanswered question about Bunker Survey VNET by Surveyor on this site. We have collected two similar information to solve it. QUESTION: Recently, many Chinese built vessels using the VNET calibration table for calculation of the bunker received on board and many a time, ended with dispute. What is VNET? FIRST • Many Chinese ship builders are calibrating vessels tanks via the use...

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Procedure of Calculations Using Density, API & Relative Density
Feb03

Procedure of Calculations Using Density, API & Relative Density

  Working with Density at 15°C in air: 1) Observed Ullage – apply corrections – get Corrected Ullage 2) Observed Interface – apply corrections – get Corrected Interface 3) From Corrected Ullage, find Total Observed Volume TOV (in cubic metres) 4) From Corrected Interface, find Volume of Water (in cubic metres) 5) TOV – Water = Gross Observed Volume (GOV) of Cargo (in cubic metres) 6) Use Density at...

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Marine Surveyor Directory
Jul06

Marine Surveyor Directory

Boost your personal or company profiles in front of others Marine Surveyor in marketplace to reach new clients When we look at the above Marine Surveyor Directory motto, it is offering a great marketing word for customer targeting. As we realize that customer is heart of businesses. Where we promote and sell our company goods and service. In the other hands, customers needs us to assist and protect their good business as well. What...

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Bunkering Tricks
Apr08

Bunkering Tricks

Even though the procedure has been tightened, we may see some bunker tanker are still trying to play their tricks, therefore it is very important for Chief Engineer, Vessel’s Crew and Surveyor to know well their tricks. Below are the Tricks of Bunker Supply, trust that most of our Chief Engineers might known the trick very well, or even know more other tricks. Hopefully by knowing these tricks we can do some prevention, counteract or...

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Negative Constant in Draft Survey
Apr01

Negative Constant in Draft Survey

What is Ship Constant? The ships constant is the difference between a vessels design lightship and it’s actual displacement when empty. The ships constant is determined by a draft survey. The ships constant will vary over the life of the vessel. Unintentional Reasons for Variations – Sedimentation in ballast or fuel oil tanks – Corrosion – Fouling of hull – Coating build-up (paintwork, tank coatings,...

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