American Magnetics 185 & 186 Liquid Level Instruments (CE-Marked) - Manual (Page 80)

70 Rev. 3
Appendix
Dielectric constants for common liquids
A.5 Dielectric constants for common liquids
The table below contains relative dielectric constants for several common
liquids at atmospheric pressure (unless otherwise noted).
Liquid
Dielectric constant a
a. Reference: Weast, Robert C. Ph.D., Editor,
CRC Handbook of
Chemistry and Physics 67th Edition
, CRC Press, Inc., Boca
Raton, FL, 1986 (pgs. E-49 through E-53).
Argon (A) 1.53 @ − 191 ° C
Carbon dioxide (CO
2
) 1.60 @ 20 ° C, 50 atm
Hydrogen (H
2
) 1.228 @ 20.4 K
Methane (CH
4
) 1.70 @ − 173 ° C
Nitrogen (N
2
) 1.454 @ − 203 ° C
Propane (C
3
H
8
) 1.61 @ 0 ° C
Oxygen (O
2
) 1.507 @ − 193 ° C