Specifications

7. APPENDIX
Page 157 © 1998-2007 DH Instruments, a Fluke Company
Table 30. Conversions From Volumetrically Based Flow Units
At 0 °C To Corresponding Units At Another Temperature (uxxx)
TO CONVERT VOLUMETRICALLY
BASED UNITS AT 0 °C TO
CORRESPONDING UNITS AT ANOTHER
TEMPERATURE, Θ, (UXXX) MULTIPLY BY
sccm
slm
slh
scfm
scfh
sm3m
sm3h
(
)
()()
NN
TPN
T
T
NN
Ζ⋅
Ζ
⋅
+
+ θ
θ
,
Where: =
θ
Alternate reference flow temperature [°C].
TK
N
= 27315.
PPa
N
= 101325
()() NTP
ZZ
NN
;
, θ +
gas dependent compressibility factors
Table 31. Conversions From kg/s To mole/s For Various Gases
TO CONVERT KG/SEC TO MOLE/S MULTIPLY BY
Air (Air) 3.45316 E+01
Argon (Ar) 2.50325 E+01
Butane (C
4
H
10
) 1.72049 E+01
Carbon Dioxide (CO
2
) 2.27221 E+01
Carbon Monoxide (CO) 3.57015 E+01
Carbon Tetrafluoride (CF
4
) 1.13624 E+01
Ethane (C
2
H
6
) 3.32568 E+01
Ethylene (C
2
H
4
) 3.56455 E+01
Fluoroform (CHF
3
) 1.42837 E+01
Helium (He) 2.49838 E+02
Hexafluoroethane (C
2
F
6
) 7.24533 E+00
Hydrogen (H
2
) 4.96032 E+02
Methane (CH
4
) 6.23325 E+01
Nitrogen (N
2
) 3.56939 E+01
Nitrus Oxide (N
2
O) 2.27206 E+01
Oxygen (O
2
) 3.12512 E+01
Propane (C
3
H
8
) 2.26778 E+01
Sulfur Hexafluoride (SF
6
) 6.84697 E+00
Xenon (Xe) 7.61615 E+00