Endress+Hauser NXA820 - Page 33

Tankvision Calculations
Endress+Hauser 33
Palm oil
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For the VCF we can easily derive: VCF= D
Obs
/D
ref
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VCF Calculation
• The API/ASTM Tables are a "primary" need for any Tank Inventory system
The correct table for the product must be chosen.Together with the Product temperature and
reference density the VCF can be calculated.
In addition to the VCF the observed density can be calculated.
8.1.8 Gross Standard Volume - GSV
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The Gross Standard Volume is calculated by applying the VCF to the GOV.
D = K + K T + K (T ) + K (T ) + K (T )
Obs 0 1 Obs 2 Obs 3 Obs 4 Obs
´´´´
234
D = K + K T + K (T ) + K (T ) + K (T )
ref 0 1 ref 2 ref 3 ref 4 ref
´´´´
234
K + K T + K (T ) + K (T ) + K (T )
0 1 Obs 2 Obs 3 Obs 4 Obs
´´´´
234
K + K T + K (T ) + K (T ) + K (T )
0 1 ref 2 ref 3 ref 4 ref
´´´´
234
VCF =
Product temp.
Table & Product
Code
Ref. density
VCF
Obs. Dens.
API/ASTM
7.
Volume Correction
Factor calculation
GOV
VCF
GSV