var fDesc=new Array(); fDesc[0] = "The Petro-Calculator is designed to assist with the common calculations associated with the handling and quantification of petroleum liquids.

The functions of the calculator are as follows: Volume Correction Factor, Standard Density Correction, Conversions.

Volume Correction Factor presupposes the conversion of volume at observed temperature to volume at 15°C for crude oils, generalised petroleum products and lube oils using ASTM Tables 54A, B and D and Generalised Light Products (including LPG) using DIN 51 757 Annex B and Annex G volume correction factors, with the option of rounding the correction factor to four or five decimal places. The calculation of the ASTM VCF incorporates the rounding and truncation routines defined by the ASTM Standard.
Standard Density Correction is the correction of density at observed temperature to (standard) density at 15°C for crude oils, generalised petroleum products and lube oils in accordance with ASTM Tables 53A, B and D, with the option for hydrometer correction. The calculation of the standard density incorporates the rounding and truncation routines defined by the ASTM Standard.
Conversions include:
- Standard volume (calculation between KL @ 15°C / US Barrels @ 60°F based on known API or density @ 15°C);
- Volume (intra-conversion of the following units: litres/ cubic metres/ US barrels/ US gallons/ imperial gallons/ cubic feet);
- Weight (intra-conversion of the following units: metric tons/ long tons/ short tons/ pounds);
- Gravity (intra-conversion of the following units: density @ 15°C/ API/ pounds per US Gallon);
- Pressure (intra-conversion of the following units: kPa/ psi/ Atm/ bar/ kgcm-2/ mm hg);
- Length (intra-conversion of the following units: decimal feet / inches/ millimetres/ feet-inch-inch fraction);
- Temperature (degrees C/ degrees F)."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }