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NUS-4
Seite 36
NUS-4 K05/0216
Par. Page Description Value
Par.
Page Description Value
window
P73
32
Distance of the in the measuring
window
P95
N.A.
P74
32
Signal / noise ratio
P96
N.A.
P75
32 Blocking
Distance
P97
33 Software
code
P76
33
Waterhead of the flow
P98
N.A.
P77
33
TOT1 volume flow totaliser
P99
34 Access
lock
12. Sound Velocities in Different Gases
The following table contains the sound velocity of various gases measured at.
Gases
Sound
Velocity (m/s)
Gases
Sound
Velocity (m/s)
Acetaldehyde C
2
H
4
O 252.8
Ethylene
C
2
H
4
329.4
Acetylene C
2
H
2
340.8
Helium
He 994.5
Ammonia NH
3
429.9
Hydrogen
sulphide
H
2
S 321.1
Argon Ar
319.1
Methane
CH
4
445.5
Benzene C
6
H
6
183.4
Methanol CH
3
OH 347
Carbon dioxide
CO
2
268.3
Neon
Ne 449.6
Carbon
monoxide
CO 349.2
Nitrogen
N
2
349.1
Carbon
tetrachloride
CCl
4
150.2
Nitrogen
monoxide
NO 346
Chlorine Cl
2
212.7
Oxygen
O
2
328.6
Dimethyl ether
CH
3
OCH
3
213.4 Propane
N.A.
C
3
H
8
246.5
Ethane C
2
H
6
327.4
Sulphur
hexafluoride
SF
6
137.8
Ethanol C
2
H
3
OH 267.3