Petroleum Calculation Series: Wedge Formula
Mar07

Petroleum Calculation Series: Wedge Formula

As I have requested by comments to post about Wedge Formula of liquid cargo measurement, herewith the article collected from internet What is Wedge Formula? Wedge Formula is calculation to determine the small quantity of liquid or non liquid cargo (On Board Quantity – OBQ or Remaining On Board – ROB) on cargo tanks, where it should fulfill the following conditions : – The vessel has huge trim, but there is no trim...

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SurveyorMates Video
Mar06

SurveyorMates Video

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Hold Cleanliness: Surveyor’s Inspection and Requirements
Dec22

Hold Cleanliness: Surveyor’s Inspection and Requirements

Prior to loading grain, all ships are usually subject to a survey by an approved independent surveyor. The surveyor will require the ship’s particulars, and details of at least the last three cargoes carried. He will then inspect the holds for cleanliness and infestation, and the presence of any material that could lead to infestation or contamination. When the surveyor is satisfied, he will issue the ship with a certificate to...

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Hold Cleanliness: Cleaning The Hold
Dec22

Hold Cleanliness: Cleaning The Hold

Before loading a bulk cargo, the master has usually to declare that the ship is ready to load as per the charterparty requirements and charterer’s and owner’s instructions. Copies of the charterparty should be placed onboard so that the master is able to see exactly what are the ship’s obligations. The master can have this declaration accepted only when the holds have been inspected and accepted. For this to happen, the master needs...

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Gas Tanker: Specimen of Calculation
Nov07

Gas Tanker: Specimen of Calculation

The following example demonstrates the typical procedure outlined using the standard temperature of 15°C as applied to cargo in a ship’s tank. Measurement data — Tank No.3 port Product — Propane Gauge reading of liquid depth  ………………………………….. : 10.020 metres Ship’s trim...

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