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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Different manufacturer may have different densities for same chemical. We can apply this WCF to the standard volume to get the weight of cargo in the air.

We need to apply Weight correction factor WCF to the standard volume to get the weight of the cargo.

Ivan Sep 23, So as we found out the weight conversion aatm for API 66 is 0. In air or in Vacuum Apart from the units, weight is measured in air or in Vacuum. In this case, we need to get the volume correction factor VCF to convert the volume at the observed temperature to the standard volume which is volume at 15 Deg C or Volume at 60 F respectively.

MySeaTime Podcast This podcast on the maritime matters will provide value tablr the listeners. Ok, now let us get back to basics of cargo calculations on tankers. Let us say cargo surveyor provided the density at sstm deg C as 0.

This is even easier than the previous section that we discussed.

## ASTM Table 53 / 54

It is sometimes difficult to get a hang of these calculations. We then need to apply the weight correction factor WCF to convert the standard volume to tabl.

Rajeev Jassal has sailed for over 19 years mainly on crude oil, product and chemical tankers. The one with letter A is for crude oils and the one with letter B is for product oil.

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### Cargo Calculations on Tankers with ASTM Tables: Here is all you need to know – MySeaTime

Basics of cargo calculations Ok, now let us get back to basics of cargo calculations on tankers. These methods are mostly used for calculation of chemical cargoes.

And we call this as weight correction factor WCF. Density at 15 Deg C and ASTM table to use The previous two methods are useful and applicable for cargoes the density for which changes proportionally with temperature. He has done extensive research on quantitatively measuring Safety culture onboard and safety climate ashore which he believes is the most important element for safer shipping.

This will be the volume at the observed temperature. First, check what cargo surveyor has provided you.

And when we multiply the volume at observed temperature with VCF, we get the standard volume, this time the volume at 60 Deg F. Ask or answer a question on this forum. Thankyou sirvery well explained in simple words with deep explanation. But what if we are provided with API gravity at some other temperature, say at 80 deg F?

Follow us Today on our social network. All this to make sure that we have the capacity to load maximum cargo and tsble owner has a chance to earn maximum from it. Not because these are difficult but because there are so many variations to it.

Jorge Belalcazar Cardona Sep 29, Thanks for sharing ur knowledge. Short, crisp and full of value.

## ASTM Table Series for Oil Survey

There is a simple co-relation between density aztm vacuum and density in the air. This article would aim to simplify the cargo calculations on tankers.

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There is a simple formula to convert these. Get your hands on ASTM tables and you will find that cargo calculations are not as difficult as it seems. Share your knowledge by writing answers to the question. Pls next how to calculate: If you can’t explain it simply, you don’t understand it well enough”. Share your knowledge by writing answers to the question Ask or answer a question. The density table could look something like this. The first page of the ASTM table 56 provides the factor for converting weight in vacuum to weight in air and vice versa.

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. This is something a chief officer cannot afford to do it wrong.

So we then need to either convert the weight in vacuum to weight in the air as we discussed earlier or we can simply convert the density in Vacuum to density in Air. Let us use the same volumes and temperatures that we have used in our initial example. MySeaTime Blogs Learn the difficult concepts of sailing described in a easy and story-telling way. We also measure the temperature of the cargo preferably at three levels and take the mean of these three temperatures to get the temperature of the cargo.

Remember, for stability and draft calculation we still would need to use the weight in air.