Posts about table 53A written by ronmooring. both ASTM and tables , calculations for Special Applications, LPG/NGL calculations). Volume VII – Generalized Crude Oils (Tables 53A & 54A) Volume VIII – Generalized Products (Tables 53B and 54B) Volume IX – Individual. If ” PRODUCTS ” TABLES 54B and 6B are selected, 1, A.S.T.M. TABLES. 2

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Ok, so now here is the first thing that we talbe learn. Rajeev Jassal Oct 14, Density at a particular temperature and correction factor So let us say that cargo surveyor has provided us with the density at a particular temperature and correction factor. Vapour weight in LPG And as the density also changes with the temperature, we would need the density of taable cargo at the cargo temperature to convert the observed volume to weight.

These methods are mostly used for calculation of chemical cargoes. Learn the difficult concepts of sailing described in a easy and story-telling way. Pushkar Oct 30, Sarath M Dec 25, So, in this case, we just apply these densities to get the weight of cargo in each tank and thus the total weight of the cargo. Lai h Nov 2, More things to do on myseatime.

And we call this as weight correction factor WCF. Go to myseatime blogs. Seafarers Question Answers Ask or answer a question on this forum.

### ASTM D – ROFA Products

But for petroleum products and crude oils, ASTM tables are used for calculating cargo weights. Will try to write on similar topic for LPG. Things as simple as cargo calculations.

Basics of cargo calculations Ok, now let us get back to basics of cargo calculations on tankers. Here is how the ullage report will look like.

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Krishna kumar Nov 10, So, in the same manner, we get the VCF Volume correction factor for other required temperatures that we have measured in each tank. Let us say the provided values are Density at 25 Deg C: Now we get the volumes for each of these tanks for the corrected ullage that we have got.

We can apply this WCF to the standard volume to get the weight of cargo in the air. The cargo calculations, in this case, are also easy. There is a simple formula to convert these. Let us say the cargo surveyor has provided the API gravity at 60 F to be But while we do all this, sometimes we just fail to do the simpler things right. Amit Yadav Sep 26, Not because these are difficult but because there are so many variations to it.

Volumes are measured in cubic meters at some places and barrels like in the US in other Weight is measured in Metric tons at some places and in long tons at other places and barrels at 60 deg F at other places. Jorge Belalcazar Cardona Sep 29, Remember, for stability and draft calculation we still would need to use the weight in air. We make sure that there are least constants on the ship, the ballast is pumped out to the last drop and many other things like these. We need to follow the information provided by the cargo surveyor because that would be the table that is used for shore calculations and we need to use the same to avoid ship shore quantity difference.

In air or in Vacuum Apart from the units, weight is measured in air or in Vacuum. Let us say cargo surveyor provided the density at 15 deg C as 0. Also, the volume is measured in Barrels and not in cubic meters.

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But there are other ASTM tables that supplement these tables that we discussed so far.

## ASTM Table Series for Oil Survey

So let us say that cargo surveyor has provided us with the density at a particular temperature and correction factor. There are no standard tables for chemicals.

Thank you sir, for explaining complicated topics in such a lucid manner, its an art Thank you so much for sharing your knowledge in such a simple manner. Share your knowledge by writing answers to the question Ask or answer a question. Ivan Sep 23, We need the density of the cargo to convert the volume of cargo to the weight.

### Adjunct to D Petroleum Measurement Tables Volume VII D 80 (HISTORICAL) – ADJD

If the cargo temperature is between two values in the density table, we just interpolate to the get the density at the desired temperature. This article would aim to simplify the cargo calculations on tankers. So when in these ports, we tqble to have the volumes in Barrels and temperature in Deg F. In this case, we need to get the volume correction factor VCF to convert the rable at the observed temperature to the standard volume which is volume at 15 Deg C or Volume at 60 F respectively.

This is the reason “Albert Einstein Quotes.

We do so many things to make sure that ship owners get the maximum out of their investments on buying and running a ship.