Description

This gives the difference between the volumes measured on-board the vessel (after loading from the port) and the volumes already on-board (OBQ volumes i.e. before the load took place).

The difference % is a measure of difference between what the port says it has delivered and what was actually loaded on the vessel, expressed as a percentage of the Bill of Lading volumes.

Formulas

Load TCV Difference % = (Vessel Loaded TCV - BL TCV) * 100 / (BLTCV)

where:

Vessel Loaded TCV = TCV After Loading - OBQ (Total) Tanks to be Loaded

Description

This gives the difference between the volumes measured on-board the vessel (prior to discharging at the destination port) and the volumes remaining on-board (after the discharge).

The difference % is a measure of difference between what the vessel says it has delivered and what the port actually received, expressed as a percentage of the Outturn volumes

Formulas

Discharge TCV Difference % = (Outturn TCV - Vessel Discharged TCV) * 100 / (Outturn TCV)

where:

Vessel Discharged TCV = TCV Before Discharge - ROB from Loaded Tanks (Total)

Description

While the BL TCV is what the port says it has delivered, the Load VEF of the vessel is used to derive the volumes that may have been loaded from the port in theory (Theoretical Shore volumes).

This ship/shore difference is the % difference between the Theoretical Shore volume and the BL TCV volume, expressed as a percentage of the BL volumes.

Formulas

Load Theoretical Shore Diff % =(( (Vessel Loaded TCV / Load VEF) - BL TCV) * 100) / (BL TCV)

where:

Vessel Loaded TCV = TCV After Loading - OBQ (Total) Tanks to be Loaded

Description

While Outturn TCV is what the port says it has received, the Discharge VEF of the vessel is used to derive the volumes that may have been discharged to the port in theory (Theoretical Shore volumes).

This ship/shore difference is the % difference between the Theoretical Shore volume and the Outturn volume, expressed as a percentage of the Outturn volumes.

Formulas

Discharge Theoritical Shore Diff % = (( (Vessel Discharged TCV / Discharge VEF) - Outturn TCV) * 100) / (Outturn TCV)

where:

Vessel Discharged TCV = TCV Before Discharge - ROB from Loaded Tanks (Total)

Description

This checks for the % increase or decrease in the volume of Free Water between what was already on-board and what is measured after the completion of loading.

Formulas

Load FW Difference % = ((Received FW - OBQ (FW) Tanks to be loaded) * 100) / Received FW

where:

Received FW = TCV After Loading – GSV After Loading

Description

This checks for the % increase or decrease in the volume of Free Water between what was delivered to the Discharge port and what remained on-board after the discharge.

Formulas

Discharge ROB FW Difference % = ((Delivered FW - ROB from loaded tanks (FW)) * 100) / Delivered FW

where:

Delivered FW = TCV Before Discharge – GSV Before Discharge

Description

This gives the % difference between the total calculated volume of the cargo delivered from the loading port and that received by the discharge port, expressed as a percentage of the BL (load) volumes.

Formulas

Delivered TCV % = ((Outturn TCV - BL TCV) * 100) / BL TCV

Description

This gives the % difference between the total Outturn FW & SW at the destination port and the total BOL FW & SW at the load port, expressed as a percentage of the BOL FW & SW volumes.

Formulas

O/T-BOL FW & SW Diff % = ((O/T_FW+SW – BOL_FW+SW) * 100) / BOL_FW+SW

where:

O/T_FW+SW = Outturn TCV – Outturn NSV

BOL_FW+SW = BL TCV – BL NSV

Description

This gives the % difference between the net standard volume of the cargo delivered from the loading port and that received by the discharge port, expressed as a percentage of the BL (load) volumes.

Formulas

Delivered NSV % = ((Outturn NSV - BL NSV) * 100) / BL NSV

Description

This is representative of the 'In-Transit Difference' between the time the vessel sails of from the Load port till the time the vessel arrives at the Discharge port, expressed as a percentage of the volume it sailed with.

Formulas

Transit Diff. % TCV = ((TCV Before Discharge - TCV After Loading) * 100) / TCV After Loading

Description

This gives the % difference of the free water between the time vessel sails of from the Load port till the time the vessel arrives at the Discharge port, expressed as a percentage of the volume it sailed with.

Formulas

FW In-transit Diff. % = ((VOA FW – VOS FW) * 100 / (VOS FW))

where:

Vessel on Sailing (VOS) FW = TCV After Loading - GSV After Loading

Vessel On Arrival (VOA) FW = TCV Before Discharge - GSV Before Discharge

Description

This is the loss that occurs between the Load port and the Discharge port,taking into account OBQ and ROB values, expressed as a percentage of the original volumes loaded (BL volumes).

Formulas

Adjusted TCV Diff. % = Adjusted TCV Diff. * 100 / BL TCV

where:

Adjusted TCV Diff. = (Outturn TCV - BL TCV) - OBQ (Total) Tanks to be Loaded + ROB from Loaded Tanks (Total)

Description

This is the loss that occurs between the Load port and the Discharge port,taking into account OBQ and ROB values, expressed as a percentage of the original volumes loaded (BL volumes).

Formulas

Adjusted NSV Diff. % = Adjusted NSV Diff. * 100 / BL NSV

where:

Adjusted NSV Diff. = (Outturn NSV - BL NSV) - OBQ (Total) Tanks to be Loaded + ROB from Loaded Tanks (Total)