## Hold Cleanliness Survey

Hi marine cargo surveyor. :). It was about three months with no posting, as I have faced busy days. Previously, we have discussed topics about Draft survey : Terms of Conduct, Draft Survey : Procedures and Calculation, Draft Survey : Specimen of Calculation, How To Conduct Bunker Survey, and Bunker Survey Calculation. Appreciated every feedbacks and comments around the posts. In this posts, I will generally introduce about cargo hold...

## Software: Bunker Survey and Petroleum Calculation

I have added some software relate to oil calculation. The software are: 1. 7s-BunkerCal A Bunker Tank Sounding calculation program. Bunker survey calculation for tank sounding report based on ASTM Table 54B . Follow this link to know more http://www.sevensurveyor.com/software/bunker-calculation/ 2. 7s-OilCal-Table 6A, 6B, 54A, 54B A Petroleum calculation program. For shipboard survey with calculation and ullage report based...

## Petroleum Calculation Series: Shipboard

The shipboard loading survey is conduted to get the quantity loaded onboard the vessel with measurement of cargo tank. The sounding or ullaging are performed to obtain the level of oil and free water on each tank. The obtained oil level data were calculated by using ship tank table to get TOV and total free water. Data required for Crude Oil Survey: – Tank Number – Tank Reference Height – Dip innage (sounding) or...

## Petroleum Calculation Series: Definition

Ambient Temperature: The temperature of the surrounding medium such as the atmosphere. API: American Petroleum Institute. API Gravity (Relative Density): A means used by the petroleum industry to express the density of petroleum liquids. API gravity is measured by a hydrometer instrument having a scale graduated in degrees API. The relation between API gravity and relative density (formerly called specific gravity) is: API...

## Draft Survey Software

I have tried to complete the sevensurveyor project and developed one simple software for draft survey calculation named 7S DraftSurvey. This software is made for automatic draft survey calculation such as; quartermean draft, trim, fore and aft draft corrections, Displacement, TPC, LCF, MTC, 1st & 2nd trim corrections, density correction and deductibles. The software could be used to determine the total cargo loading/unloading...