Bunker Quantity Survey

Bunker Quantity Survey

Bunker survey

Bunker survey of AIM Control Survey & Inspection Group to certify quantities of oils onboard vessels/ships and/or barges before and after the bunkering according procedures of API MPMS chapter 17.1, with Bunker quantity survey of AIM Controls, our clients can expect unbiased reports and confidentiality. Email: inspection@aimcontrolgroup.com, aimcontrol@hotmail.com, cell: +84903615612.

Place of AIM Control's bunker survey services: - at on board of the ships and vessels in ports, harbours, anchorage, place and position of ship, place of ship delivered and place of ship re-delivered, namely based in Vietnam, China, India, Korea, Asia, Europe, the Middle East Anywhere of Countries. Local Email: inspection@aimcontrolgroup.com, aimcontrol@hotmail.com, cell: +84903615612.

Time (period) of bunker survey:  AIM Control provides bunker inspection and bunker sampling services for pre and post charter periods, period of bunkering operations, vessel delivery and re-delivery.

Place of bunker survey: a board of vessel, ship, tankers while her berthed and/ or anchored.

What do we do the bunker survey?: bunker sampling & bolts sealing, bunker gauging/ sounding, bunker temperature measurement and reading, Vol. of bunker and bunker weight calculation and issuance of Bunker Certificate and others.

Who do bunker survey?: AIM Control's marine bunker surveyors and inspectors.

Bunker survey jobs conducted by AIM Control third party inspection to Charter Party, Ship Management, Ship Operation, Bunkering and Ship-owners as well other parties who need to have the exact quantity  and volume figure to expose this to others identification of marine vessels and ships upon ON-HIRE / OFF-HIRE / BUNKERING.

See more in details at AIM Control's BUNKER SURVEY

Please kindly review scope of ship inspection, marine survey and consultancy services of AIM Control Survey & Inspection Group

AIM marine ship off-hire surveyors

AIM Vessel Full on hire survey

Gas / oil / hydrocarbon chemical liquid quantity survey

AIM surveys relating others to Off/On hire surveys

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DETAILS 

What is AIM Controls Bunker Survey? The survey is carried out to measure and ascertain the quantity of Bunker on board at the specific time. This survey is produced the report that states the amount of bunker, usually Fuel Oil (FO) and Diesel Oil (DO), and sometimes Lubricating Oil (LO) is included.

In this post limits to how to conduct the Bunker Survey on the ship tanks only.

Survey Tools required for Bunker Surveyor
–        Notes Book,
–        Sounding Tape,
–        Thermometer,
–        Density Meter for Oil (0.750 -1.000),
–        Oil and Water Paste,
–        Petroleum ASTM Table 54B (for Product Oil) and Table 56,
–        Google and Glove,
–        Flashlight,
–        Sampling Can,
–        Bottle or Can for Sampling (if required taken samples).

Steps for AIM Controls Conducting Bunker Survey

·         Identify and records the number and Depth of Tank, Reference Height, and Measuring Method recommended to use (Ullage or Sounding) for each Oil Tank. Sounding is determined the level of liquid tank from the bottom of the tank to the liquid surface (typically applied for light liquid). Ullage means to determine the level of liquid of tank by measured the empty space from top of the Tank (the mouth of Sounding Pipe) to the liquid surface (typically applied for heavy liquid). The both methods will point to the same result.

·         Record the Last Bunker Report, Time and Place of last Bunker supplied, includes the Oil density.

·         Records the quantity of bunker onboard when the ship arrives at Port (arrival Condition) as per Engine Log Book.

·         Checking the accuracy of the Sounding Tape, it is recommended to use your own Sounding Tape. In case we used Ship’s Sounding Tape, please checking the tape.

·         Sounding each Oil Tank and records the level of Oil on the tank. Attached the sounding Tape with Oil Paste to make easy and clear to show of oil level (recommended for Light Oil).

·         Check the Ship’s Draft Marks to get the Ship Trim for Trim correction, and check the ship Inclination or Listing for List Correction, that is required to calculate the Tank Quantity Table.

·         Taken Oil sample, check temperature and oil density, for the accessible tank only. The Service and Settling Tanks are not accessible due to the oil on that tanks were in heating condition at the high temperature. We could records the tank gauging for determining the quantity, the temperature at the thermometer available on each tank, and the Oil Density from the Engine Log Book. If you could not taken the oil sample for checking density, it is recommended to calculate the Density Commingle, by means the Combine Density between two Oils (Old and New Oils) that has mixed on one tanks which they have different in Density. Where it is approaching the actual oil density, the pattern is {(Old Oil Quantity x Oil Density / Total Oil on Tank) + (New Oil Quantity x Oil Density / Total Oil on Tank)}.

·         Calculations, this stage will involved the Sounding level of each tank, Ship’s Trim and List, Tank Quantity Table (provided by Ship’s Chief Engineer), Oil Density and Temperature, ASTM Table 54B to ascertain the Volume Correction Factor (VCF – to convert from Cubic Meter to Kiloliter) and ASTM Table 54B for Weight Correction Factor (WCF – to convert from Kiloliter to Metric Ton).

·         Example to calculate Density Commingle: FO Tank No. 1 C, total oil on tank 400 Cu.M, Old Oil 200 Cu.M with density 0.9870, and New Oil 200 Cu.M with density 0.9720. Density Commingle = {(200 x 0.9870 / 400) + (200 x 0.9720 / 400)} = 0.4935 + 0.4860 = 0.9795.

·         Issued the Tank Sounding and Bunker Report.

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Head office:

Agriculture - Industry - Marine Survey & Inspection Group
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Tel     : +84-8-3832-7204
Fax    :  +84-8-3832-8393
Cell.   :  +84903615612
E-mail:  aimcontrol@aimcontrolgroup.com

            inspection@aimcontrolgroup.com
MSN  :  aimcontrol@hotmail.com
Skype:  aimcontrol
http://www.aimcontrolgroup.com

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