4-150
Flow-X─ Function Reference
Flow-X General functions - fxAPI_Table53_2004
fxAPI_Table53_2004
Description
Density (T, P) --> Density (15°C, 0 bar(g))
This function converts a density value at the observed temperature and pressure to the density value at
15°C and 0 bar(g).
The temperature and pressure correction is according to API MPMS 11.1:2004.
An iterative calculation needs to be applied to convert the observed density to the value at base
conditions.
Note: As opposed to API-2540, the 2004 standard does not include a correction for readings taken from
a hydrometer and assumes that the equilibrium pressure is below atmospheric pressure, so taking 0
psig as the base pressure.
Compliance
API MPMS 11.1 Temperature and Pressure Volume Correction Factors for Generalized Crude
Oils, Refined Products and Lubricating Oils, May 2004
Function
inputs
Remark
EU
SW tag
Range
Default
Name
Optional tag name, tag description
and tag group
Observed
density
Density at the observed
temperature and pressure
kg/m3
0..1300
0
Observed
temperature
Temperature at which the density
is observed
°C
-100..200
15
Observed
pressure
Pressure at which the density is
observed
bar(g)
-1..150
0
Product
1: A - Crude Oil
2: B - Auto select
Selection based on density at 15 °C
3: B - Gasoline
4: B - Transition Area
5: B - Jet Fuels
6: B - Fuel Oil
7: D - Lubricating Oil
PRDTYP
1
API rounding
0: Disabled
The calculations are
performed with full precision
and the final CTL, CPL and
CTPL values are rounded as
specified by the inputs 'CTL /
CPL/ CTPL decimal places'
1: Enabled
The input and output values
are rounded in compliance
with the standard. The CTL,
CPL and CTPL value are
rounded to 5 decimal places.
APIROUN
D
0
Содержание flow-x
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