Posted By Faisal Yusuf on Mar 27, 2010 |

The bunker calculation is simple and needs the following:

– Tank Sounding data and Tank Capacity Table. The Corrected Sounding means below is the sounding after correcting with vessel’s trim and list.

– Temperature of Oil on Tanks,

– Oil Density @15*C,

– Table ASTM 54B (VCF) and Table ASTM 56 (WCF).

Now we could go with sample of 1 tank to test the calculation.

** Question :

FO Tank No. 1 Center, Corrected Sounding = 3.27 Meter,

Temperature = 34*C,and density @ 15*C = 0.9903 (given density).

Tank Volume at Sounding 3.20 M = 157.20 Cubic Meter,

at Sounding 3.30 M = 163.60 Cubic Meter.

** Answer :

– The Quantity in Metric Ton = Oil Vol x VCF x WCF,

– Observe Volume = {(3.27 – 3.20) / (3.30 – 3.20) x (163.60 – 157.20)} + 157.20

= (0.07/0.10) x (6.40) + 157.20 = 4.48 + 157.20 = 161.68 Cu.M.

– T 54B (VCF) > Density @ 15*C 0.9903 = 0.9870 (see the above picture you need to interpolate if any different numbers on both columns).

ASTM Table 54B – T 56 (WCF) : Density @15*C 0.9903 = 0.9892

(Quick formula with reducing factor for WCF is Density @ 15*C – 0.0011 = 0.9903 – 0.0011 = 0.9892).

We don’t need to see the table anymore.

– So, The Quantity in MT is 161.68 x 0.9870 x 0.9892 = 157.85 MT.

Sample calculation tanks sounding attached below (the Temp below should be 34 C).

Note : If you do calculation with Volume in Barrel, just uses *ASTM Table 6B for VCF*, *ASTM Table 11 for WCF in Long Ton* and then *ASTM Table 13 for WCF in Metric Ton*.

For the above calculation, you could download the software BunkerCal by follow this link http://www.sevensurveyor.com/software/bunker-calculation/

Just drop your comments around this topic.

Regards,

Surveyors

*Related*

May 7, 2013

thanks and waiting

May 7, 2013

Dear Whuy,

Thanks for your info, I like this. The blog owner has helped me to promote my web blog.

Regards,

Surveyors

May 7, 2013

Dear Toyoto,

I don’t get it yet. Could anyone help to answer this?

Regards,

Surveyors

May 7, 2013

Dear Arshad,

Thanks. I don’t hear about the VNET yet. Will inform once get it.

Regards,

Surveyors

May 7, 2013

Dear Malayarasan,

Refers to T 54B density 0.9903 at 30*C is 0.9897. There is mistype on the sample of calculation above tank sounding. The temperature written 31*C, should be 34*C.

Regards,

Surveyors

May 6, 2013

Dear Mujeeb,

Use Density Commingle. You should check the post http://www.sevensurveyor.com/how-to-conduct-bunker-survey/ in the Steps for Conducting Bunker Survey you will find the answer.

Regards,

Surveyors

May 6, 2013

Dear Soji,

Thanks, the bunker survey is simple as the post you have seen.

Regards,

Surveyors

May 6, 2013

Dear High Gain,

Thanks, you should add more data from tank table for trim and list correction to complete this calculation.

Regards,

Surveyors

May 6, 2013

Dear Nikkojcmae,

Thank you. Can you use above the post method, could you?

Regards

Surveyors

May 6, 2013

Hi Halo43,

You should contact ASTM to get both table. Anyhow thanks.

Regards,

Surveyors

May 2, 2013

http://binagamarinesurveyor.blogspot.se/2011/10/bunker-survey-calculation.html

April 30, 2013

Kindly answer the question on Vnet. Everyone is waiting.

April 23, 2013

How could we confirmed if the ship tank is VNET. If so how can we do a calculation/handle for VNET situation

April 12, 2013

CAN I GET THE TABLE 54B, FOR TEMPERATURE 30C? For the same density.

March 17, 2013

dear sir,

normally we apply barge ‘s density during calculation of bunker on vessel’s nominated tanks after completion.

but when and how we change the barge’s density if vessel’s nominated tank has some bunker prior to bunkering

March 13, 2013

Sir, I enjoyed your Knowledge on Draft survey with the work Example it was so easy to understand and calculate. Pls I need a work Example too on Procedure for calculating Bunker Survey. I will be expecting. Thanx Best Regards

February 26, 2013

Guys,

I kindly please you to send me ASTM Table 56 to: slobofaca@gmail.com It woulld be a great help for me!

Thanks a lot!

January 4, 2013

for example how to get the trim correction …F=4.70 A =5.80 trim is 1.10 and initial sounding ullage = 12.80 cm.. the list is 2 degrees at port side…pls reply…thanks..

December 7, 2012

Hi,

Am a trainee surveyor from Singapore.

2 question:

1. How could we confirmed if the ship tank is VNET. If so how can we do a calculation/handle for VNET situation.

2. How can we get the correct VCF by only using calculation/table 54.

Could you pls email a copy of the table 54b.

Thanks and regards

Trainee Surveyor

November 20, 2012

DEAR SIR,

I AM A RETIRED SKIPPER FROM SRI LANKA ACCIDENTALLY I CAME ACROSS TO YOUR SURVEY PAGE AND DELIGHTED WITH YOUR HELPING BEHAVIOR. YOUR ARE LIKE A BECKON TO MANY YOUNG NAVIGATOR WHO WANT TO LEARN MORE IN THIS FIELD.MAY GOD BLESS YOU IN MANY WAYS LONG LIVE.

SHANMUGALINGAM.R

November 18, 2012

hi guys?!

can you help me on how to calculate very easy for Oil Record Book..

the formula only on how to calculate the remaining ROB in the tank..

how to solve using an example of correction table factor..

pls help me guys..

Very thanks and best regards,

nikko

November 14, 2012

Hi,

How do we calculate trim? Is it important? Can you provide me some basic formula. I new in this industry. Please guide me.

November 13, 2012

hi can i have the astm 54b and 56table. please send to me @ halo43@hotmail.com

July 11, 2012

hii..

can you send me astm table 53, 54b,56,57 (PDF) showing in the above example

Thanks in advance

kind regards

Dian BR

July 11, 2012

I am a Chief Engineer , want to do Bunker Survey Course , pls let me know any Institution in India for this.

Regards

Rupaankar

July 10, 2012

Dear Hamid,

The VCF calculated formula is based on factor of API calculation of base density at temperature. It is easier to refer to ASTM table.

Regards,

Surveyors

July 4, 2012

hi sir

many thanks for your cooperation,can u tell me how u calculated vcf or tell me vcf calculate formula .

best regards.

hamid

April 16, 2012

Dear Khan,

To find the volume @ 15*C, you only need to find the VCF at ASTM table 54 or 54B.

Volume @ 15*C = observe volume x VCF.

Regards,

Surveyors

April 15, 2012

Dear Faisal,

Thanks a lot for this website it really helped me a lot in every way possible…

Can you Please Help me with “How you calculate Volume @15 C”

i understood every thing but in your Sample calculation report i am unable to find a way to calculate the VOLUME @15 C

Thanks & Best Regards,

M.I.Khan

April 9, 2012

Dear Ace,

The factor is to find WCF (weight correction factor) for T56.

Quick formula with reducing factor for WCF is Density @ 15*C – 0.0011

example: density 0.9903 – 0.0011.

t56 = 0.9892. We don’t need to see the table anymore.

Regards,

Surveyors

April 8, 2012

hi im confused of the factor 0.0011? what is the use of that factor?

thank you..

March 9, 2012

Hi Ansari,

Thank you, if you have survey articles, you could contribute here as well.

Regards,

Surveyors

March 8, 2012

Hi Faisal & Team,

You are always trying to solved all quireis of surveyors .

Your contribution is highly appreciated to all surveyors specially Beginners.

Best Regards,

Ansari

February 27, 2012

Please kindly send me the calculation formula of volume downloaded at 15C.

If I have (1) volume downloaded at ambient (2) Density @ 15C and (3) Ambient Temperature (DegC), how can I find the volume downloaded @ 15C?

Please kindly e-mail me at kamjo.awng@live.com

Thank you very much for your assistance and cooperation on this matter.

With Regards,

February 17, 2012

that is good for us.

February 16, 2012

please sent to density table 54B

February 16, 2012

Hi Sid,

Thanks for your comment.

Regards,

Surveyors

February 16, 2012

I used your information on draft survey and bunker surveys. Very helpful. Thank you for providing free information.

February 14, 2012

Dear Ruben,

I will email you soon.

Regards,

Surveyors

February 14, 2012

Dear Naresh,

There is no softcopy for ASTM table. you should obtain the book table from http://www.astm.org. Or you could use one of the software on this blog. Go to http://sevensurveyor.com >> Survey & Surveyor >> Software >> choose no

3. ASTM Table 54B by Boriss Grahlovskis (freeware). Good luck.Regards,

Surveyors

February 13, 2012

Dear Faisal,

Your software is really hepful for us involved on the bunkers calculation. I wish to have the software to use on my daily service. I wish to get it, is that possible.

Thanks and best regards,

Ruben

December 21, 2011

plz send me astm table nd astm table 54b of copy soft copy in my mail naresh.komara21@gmail.com thanking you naresh

December 21, 2011

dear sir, would u plzz send me the soft copy of astm table nd 54b table for just reference plz send me in my mail thank you naresh

November 30, 2011

Dear Gaj,

Thanks for your correction. The mistype has already fixed on the post.

Regards,

Surveyors

November 29, 2011

Can you please clarify in worked example how you got the figure of 0.9903?

Isn’t the given density at 15C is 0.9870?Thanks,

November 29, 2011

Dear Tore,

WCF is a factor for converting volumes to weight-in-air. See also the definition at http://www.sevensurveyor.com/petroleum-calculation-series-definition/

Regards,

Surveyors

November 28, 2011

What is the physical principle to use the WCF?

November 23, 2011

Dear Naresh,

I have just inserted 2 posts about petroleum survey. I will post more next time.

Regards,

Surveyors

November 15, 2011

sir thank for ur tremodous information about bunker will plz give me some valuable information about petroleum products survey.thank u waiting for replay

November 9, 2011

dear all,

im looking for relation direct between density at 15 and density observed,

by this way: Density 15=f (Dobs,T)

and tanks.

October 18, 2011

Dear Harendra,

The oil nature is the more temperture hit, the more volume reach.

If your tank capacity is 50m x 25m x 10m = 12,500 m3, you should find the the quantity in m3 at 1m ullage.

As per above tank, you 1m ullage is 50m x 25m x 9m = 11,250 m3.

The 11,250 m3 is the maximum volume in m3 that required for your tank.

Check the astm table for your cargo density and heating temperature. If use astm table 54b, when density 0.910 @ 20*c the factor is 0.9962.

Then 11,250 m3 x 0.9662 = 11,207.25 m3 @ 15*c.

If the heating applied, then temperature increased to 30*c and density at 0.910 the factor in astm table 54b is 0.9886, and your volume m3 will be increased to

11,207.25 m3 : 0.9886 = 11,336.49 m3. That means you have loaded excessive volume to the intended ullage.

To cope with this issue, you should calculate the final volume m3 after heating where:

11,250 m3 x 0.9886 = 11,121.75 m3 @ 15*c.

and 11,121.75 m3 : 0.9962 = 11,164.17 m3. Just find the ullage that point to 11,164.17 m3. Your cargo will be save at 1m ullage after heating.

Actually it has the simple formula;

loaded volume = volume m3 at intended ullage x VCF final (0.910 @ 30*c) : VCF initial (0.910 @ 20*c)

11,250 m3 x 0.9886 : 0.9962 = 11,164.17 m3.

Regards,

Surveyors

October 9, 2011

sir,i am mariners to prepation for secondmate exam.I want to calculation regarding ASTM table for exam purpose.as my question….

Q (1)–a cargo tank 50x25x10m has the ullagepipe 0.6m high.oil of density 0.910@15*c in vacuum is loaded at the temperature of 20*c.The oil will be heated during the voyage to a temperature of 30*c,at which time a minimum ullage of 1 m from the top of the pipeis required.calculate the loading ullage.(use ASTM table)

pls give me full method with sove question.

thanks

September 30, 2011

hi

can you send me astm table 54b (PDF) showing in the above example

September 28, 2011

Bom dia Senhor.

Gostaria de receber mais informacoes sobre calclo de calado

August 2, 2011

hi

can you send me astm table 54b (PDF) showing in the above example

kind regards

July 22, 2011

sir can you give me some guide of how to calculate LPG ship’s that are discharging ammonia?

i hope you can give me one sir….

thanks..

July 1, 2011

Dear Sivamagesh,

Thanks for your comment. As you are working with the surveyor company, it would be better to learn directly from your company colleague.

Regards,

Surveyors

June 27, 2011

Sir, I want to known about draft survey basically what can i do for that now I am working in Inspecrate Griffth India pvt ltd as a tally clerk I want to known about draft survey and bunker survey accurately I want some examples about draft and bunker survey calculation.Kindly teach me ya.

My personal mail I.D is sivamagesh777@yahoo.com.

My contact number is 09789903768.

Thks & Rgds

G.Sivamagesh

February 17, 2011

Hi Korso,

The copies you meant is not legal copy to distribute, you should order it from ASTM website.

For references, I have load the simple program for ASTM table, you could check at software page. Hope you can work with it.

Regards,

Faisal

February 17, 2011

Hi Naina,

Sorry for late reply. I have some assignments to do.

The calculation presented on the post is for general use, there is no different way to calculate between small ship and big ship.

Regards,

Surveyors

February 17, 2011

Dear Paul,

You may take long distance course for marine survey at IIMS (international Institute For Marine Surveyor). please check the site http://iims.org.uk for more detail.

Regards,

Faisal

February 17, 2011

Hi Evgeny,

Thanks, it is correct when the temperature at 31 and density 0.9905 you will get VCF at 0.9891.

But I was made the calculation at temperature 34 and density 0.9903 where the VCF is 0.9870.

You could check the software page where I have load table 54B program, hope it useful.

Regards,

Faisal

Regards,

Faisal

February 17, 2011

Hi Zakir,

Thanks for commenting.

Regards,

Faisal

February 13, 2011

Hi, I’m a young marine surveyor from algeria, and I would thank you verry mutch for all the informations you’re provinding us with, in fact the country were I am information are practically not available at all, and I would like to ask you if you can provide me with a copy of Table ASTM 54B (VCF) and Table ASTM 56 (WCF), that would help me verry mutch,

many thanks in advance,

and have a nice swell,

best regards

February 8, 2011

Dear Surveyors

I am not suveyor, I hv been working as Executive Operations in a shipping company since 2006. I would like to know how to calculate bunker in tug boats with the BHP 2500 to 4000 BHP. and also pls guide to me to calculate Draft survey of barge from the capacity of 5000 DWT to 20,000 DWT.

I hv been assign to give presentatino about these two by Thursday.

Your kind help in this regard is highly appreciated.

Regards

Naina

February 6, 2011

Thanks very much for your concern in educating people freely. I need your advice on the best certification I should go as regards Inspection Jobs. I am a Nigerian.

Regards.

Paul Okuneh

February 5, 2011

Dear Faisal,

Good day!

You have a mistake VCF in example table and as a result next steps of calculation is wrong. As per API MPMS Chapter 11.1 (ASTM D 1250-04 and IP 200/04), Table 54B for your density +15C 0.9905 and fuel temp. +31C the true VCF is 0.9891.

Best Regards,

February 1, 2011

I am switching from sea to shore job as a bigginner in ship survey your works and comments will be of good help for me. Thanks for your valuable contribution in sharing knowledge for the advancement of the shipping industry in the area of surveying

February 1, 2011

Thanks Capt. Miguel.

February 1, 2011

Thanks Gouanfo,

Welcome onboard of Marine Surveying. You could contribute your sea experience here.

Regards,

Faisal

January 26, 2011

as I am switching from sea to shore job as a bigginner in ship survey your works and comments will be of good help for me. Thanks for your valuable contribution in sharing knowledge for the advancement of the shipping industry in the area of surveying

January 26, 2011

VERY GOOD INFORMATION …THANKS A LOT….

INDEPENDENT SHIP & CARGO SURVEYOR – CURRICULUM VITAE

Capt. ( r ) MIGUEL SAIZ MONROY ( Lic. No. 17085010 – DIMAR –Col.).

MARINE SURVEYOR, ISM & ISPS INSPECTOR CONSULTANT, MARITIME INSPECTIONS, DELIVERY / REDELIVERY, BUNKER SURVEYS, DRAFT SURVEYS, PORT CAPTAIN, PORT OPERATIONS, CARGO INSPECTIONS, CONDITION SURVEYS, ON HIRES / OFF HIRES IN COLOMBIAN NORTH PORTS.-

Capt. ( r ) MIGUEL SAIZ MONROY – surveyorsaiz@hotmail.com; http://surveyor2007.spaces.live.com

C. de C. No. 17085010 de Santa Fé de Bogotá, D.C. – Licencia de Navegación No. 17085010 – D I M A R – COLOMBIA

N I T No. 17085010 – 0 – Régimen Simplificado

Tel / Fax No. 5 7 5 – 3 0 1 5 9 7 5 – M o b i l e s: 3 0 0 8 0 2 6 7 6 7 y 3 0 0 8 0 3 7 2 0 7 – VHF Ch 16

Calle 72 No. 39 – 222 – Piso 2 – Carrera 41 No. 71 – 79 Piso 2 – Barranquilla – Colombia – S.A.

January 22, 2011

Thanks Vasim,

Hope you could help the other surveyors.

Regards,

Surveyors

January 14, 2011

Dear all Surveyor’s……

If u want any kind of imformation or problem in calculation or any dout …. I will sol for u people….

Contact me on :- vasimjam@yahoo.co.in

December 27, 2010

that in a report i must mention the amout of the damage

exemple the collision between the ship and the tugboat

December 8, 2010

Dear Erwin,

Thanks. Yes, it is the easiest way to do draft survey.

Best Regards,

Surveyors

December 8, 2010

Dear Silvio,

Yes, you need to attach Table ASTM 54B for the calculation program.

Regards,

Surveyors

December 8, 2010

Dear Ali,

I will post it shortly.

Regards,

Surveyors

December 5, 2010

dear surveyor,

if found no trim and hell correction, we just only make vessel on evenkeel and going to calculated the quantity.

tks

December 1, 2010

dear sirs

We need information on discharging supervision of marine bulk oil, in connection with ullaging of ship’s tanks and quantity calculation. The computer system will be needed together with table ASTM 54B.

Could you please revert on this issue.

November 26, 2010

draft survey: 2 em trim correction:

what the precedure the found 2 trim correction the are 2 methode i want now secon d methode for second trim correction thank

November 24, 2010

Dear Faisal

Could you please, send me and explain the wedge formula.

Thanks in advance

yours faithfully

November 2, 2010

Mr. A,

The Bunkering Process is commonly as the transfering oil from one ship to another. The process is simple, the feeder ship or barge that carried oil, will be alongside at the ship that needs the oil (lets say it mother). After alongside, the feeder will prepare the pump and hose to connecting to the mother ship manifold. The mother tanks and/or flowmeter is checked and prepared by the ship crews. When all preparation is completed, the feeder will start to pump the oil to the mother tank as amount agreed. The quantity agreed could be ascertained by sounding or pointed by flowmeter. After completing the transfer, the tanks or flowmeter will re-check to get the quantity. Then the feeder cast off.

Regards,

Surveyors

October 29, 2010

sir i need to know about bunkering process in detail…….

October 20, 2010

Dear Tyler,

Thanks for your correction, it was mistyped and should be 3.20. I have changed it on the mentioned post.

Regards,

Surveyors

October 20, 2010

thanks very useful step by step but please explain why you use 3.05 (where does it come from) in below part

Observe Volume = {(3.27 – 3.20) / (3.30 – 3.05) x (163.60 – 157.20)} + 157.20 = (0.07/0.10) x (6.40) + 157.20 = 4.48 + 157.20 = 161.68 Cu.M.

October 20, 2010

Hi

September 27, 2010

Hi Ixora,

The ullage and sounding are only the method to find the level of liquid on the tank. After finding the liquid level, you could use the calculation for both with same formula.

Regards,

Faisal

September 26, 2010

dear Faisal,

it is this bunker calculation can be used in ullage or sounding calculation.

August 8, 2010

Dear Nash,

Thanks for feedback. The 34C should not be there, I have make mistyping.

Regards,

Surveyors

August 1, 2010

hello surveyors,

i do understand everything but , i dont understand is how ure getting the 0.9892@34 C, you have not shown the T56 table here its very confusing here with WCF. WITH REFERNCE TO THE EXAMPLE ABOVE IVE COPIED THE CONFUSING PORTION BELOW

“”T 56 (WCF) : Density @15C 0.9903 at 34 C = 0.9892 (Quick formula with reducing factor for WCF is Density @ 15C – 0.0011 = 0.9903 – 0.0011 = 0.9892). We don’t need to see the table anymore””

July 30, 2010

Hi Rahdian,

Thanks, you also could send your contribution for this blog.

Have a nice day as well.

Regards,

Surveyors

July 28, 2010

Hi Faisal,

You are great, you give a good contribute for as .

Have a nice day

July 26, 2010

Hi Reene..

Please be noted that the author of this blog is Surveyors / Faisal not Sadanand as you are mentioned.

Regards,

Surveyors

July 24, 2010

oh sorry my mail ID is : reene50@ymail.com

July 24, 2010

Dear Sadanand,

I need soft copy of this ASTM table . Could you please send me this ASTM54B Table softcopy. Plz…in the image above I couldn’t see any values. I need this table very urgent. Plz send me soon. It’s request from me.

July 24, 2010

good calculation

July 7, 2010

Dear Indran,

I have published two posts about bunker survey, you could re-read http://sevensurveyor.com/2010/02/22/how-to-conduct-bunker-survey/ and http://sevensurveyor.com/2010/03/27/bunker-survey-calculation/.

Then you could download at downloading sidebar on my website the “Bunker survey guide.pdf” and “MEASUREMENT OF PETROLEUM ON BOARD MARINE VESSELS.pdf”.

The four resources is good enough to guide you for conducting bunker survey.

If you are serious, you could learn by joining the survey company in your country as well.

Regards,

Surveyors

July 7, 2010

Hi Aly,

I have ever answers the same comment as you had. Kindly check one of the comment at post Draft Survey Procedures and Calculation >> http://sevensurveyor.com/2009/08/25/draft-survey-procedures-and-calculation

Regards,

Surveyors

July 2, 2010

Dear sir,

I just starting to learn how to conduct bunker surveying , give some info from where i start.

Thank you

indran

June 17, 2010

Dear Surveyor,

thank you indeed for Your contribution on this site,kindly pls explain, how I can calculate the Trim & List correction of sounding, in case there are no Trim & List correction tables are available on board.

best regards

Aly Hussein

May 30, 2010

Daer Abu,

Thanks for your reading and comment.

May 17, 2010

THANKS FOR THIS INFORMATIONS

May 12, 2010

Dear Sadanand

Could you please explain, how you find out the Trim correction & List correction for sounding, in case there are no Trim & List correction tables are available on board.

yours faithfully

Aly Hussein

May 12, 2010

Dear Sadanand,

Good day

Way of simple explanation and a wonderful

Regards,

Aly Hussein

May 1, 2010

Sadanad,

Briefly, I can afford you with the calculation you meant. For the complete one, may be post later.

Example with Capacity Table :

Fuel Tank No. 1C.

Sounding : 1.50 M or 1,500 MM.

Vessel’s Trim : 1.00 M.

Vessel List : 1.0 degree to Starboard Side.

Trim Correction for Tank No. 1C in MM

——————————– TRIM ——————————–

SOUNDING …… -1.00 / 0.00 / 1.00 / 2.00 / …

…. 1.00 …………… -200 / 000 / 200 / 400 / …

…. 2.00 …………… -600 / 000 / 400 / 600 / …

…. 3.00 …………… -600 / 000 / 600 / 800 / …

List Correction for Tank No. 1C in MM

——————————— PORT / STARBOARD ————

LIST ….. / 3.0 / 2.0 / 1.0 / 0.0 / 1.0 / 2.0 / 3.0 / …

Corr …… 300 / 200 / 100 / 000 / -100 / -200 / -300 /

From the both tables we could get the corrected sounding as below :

Corrected Sounding (CS) = Sounding (S) + Trim Correction (TC) + List Correction (LC)

TC at S 1.50 M and Trim at 1.00 M is 300 MM (by Interpolation)

LC at List 1.0 degree to starboard (the right part beside 0.0 degree) is -100 MM.

CS = S + TC + LC.

CS = 1500 + 300 +(-100) = 1,800 – 100 = 1,700 MM or 1.70 M.

That’s all..

Surveyors

April 27, 2010

Dear all,

Please explain the specimen of calculation to find out the corrected sounding corrected with trim and list.

Regards,

Sadanand

April 14, 2010

Thanks Sadanand,

Hope could find more interesting topic on the next post.

Regards,

Faisal

April 13, 2010

Dear Surveyor,

The above post is excellent and gives a detailed survey procedure.

Your contribution to this site is phenomenal.

Thanks a lot.

Best Regards,

Sadanand