Calculations
Air Density
A
A-7
Nitrogen Density - SI Units (6.9 MPa to 100 MPa)
To calculate the density of Nitrogen at pressures from 6.9 MPa gauge to 100 MPa, use
the following equation;
(
)
(
) (
)
2
3
055087
.
0
016
.
11
573
.
6
/
P
P
m
kg
DENSITY
−
+
=
where;
PRESSURE
P
=
in MPa absolute (if P is in gauge, convert it to MPa absolute
by adding barometric pressure, e.g.
101325
.
0
+
P
)
Zero Air Density - SI Units (0 MPa to 20.7 MPa)
To calculate the density of Zero Air at pressures to 20.7 MPa, use the following equation;
(
) (
)
P
x
E
m
kg
DENSITY
05
17
.
1
/
3
−
=
where;
PRESSURE
P
=
in Pa absolute (if P is in gauge, convert it to Pa absolute by
adding barometric pressure, e.g.
101325
+
P
)
Helium Density - SI Units (0 to 6.9 MPa)
To calculate the density of Nitrogen at pressures from 0.01 MPa gauge to 6.9 MPa, use
the following equation;
(
) (
)
P
x
E
m
kg
DENSITY
06
585
.
1
/
3
−
=
where;
PRESSURE
P
=
in Pa absolute (if P is in gauge, convert it to Pa absolute by
adding barometric pressure, e.g.
101325
+
P
)
Helium Density - SI Units (6.9 MPa to 100 MPa)
To calculate the density of Nitrogen at pressures from 6.9 MPa gauge to 100 MPa, use
the following equation;
(
)
(
)
(
)
2
3
03
886
.
3
508
.
1
01
3136
.
0
/
P
E
P
E
m
kg
DENSITY
−
−
+
−
=
where;
PRESSURE
P
=
in MPa absolute (if P is in gauge, convert it to MPa absolute
by adding barometric pressure, e.g.
101325
.
0
+
P
)
Summary of Contents for RUSKA 2465A-754
Page 5: ...iii List of Tables Table Title Page 2 1 Symbols 2 2 ...
Page 6: ...RUSKA 2465A 754 Users Manual iv ...
Page 8: ...RUSKA 2465A 754 Users Manual vi ...
Page 12: ...RUSKA 2465A 754 Users Manual 1 4 ...
Page 26: ...RUSKA 2456A 754 Users Manual 3 4 ...
Page 54: ...RUSKA 2465A 754 Users Manual 6 14 ...
Page 64: ...RUSKA 2465A 754 Users Manual A 10 ...
Page 66: ...RUSKA 2465A 754 Users Manual A 12 ...
Page 68: ...RUSKA 2465A 754 Users Manual B 2 glg32 bmp Figure B 1 P C ASSY LR CAL D ...
Page 70: ...RUSKA 2465A 754 Users Manual B 4 glg34 bmp Figure B 3 P C ASSY W O CLEANING KIT ...
Page 72: ...RUSKA 2465A 754 Users Manual B 6 glg36 bmp Figure B 5 PC ASSY MHR W O CLEANING KIT ...
Page 74: ...RUSKA 2465A 754 Users Manual B 8 glg38 bmp Figure B 7 P C ASSY HR CAL D W O CLEANING KIT ...
Page 80: ...RUSKA 2465A 754 Users Manual B 14 glg43 bmp Figure B 12 2465A 23 ...