Dielectric Constants Chart - ABB LWT300 Series User Manual

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A p p E N D I X D

Dielectric constants chart

The dielectric constant of common fluids is indicated below. Dielectric constants are generally
influenced by:
• temperature
• moiture levels
• electrical frequency
• part thickness
Fluid
acetal
acetaldehyde
acetamide
acetic acid
acetone
acetophenone
acetyl bromid
acetyl chloride
acetylacetone
acetylene dibromide
acetylene tetrabromide
aconite acid ester
adipic acid
aerosile
aether
air (at Stp, for 0.9 Mhz)
alcohol, allyl
alcohol, cetyl
alcohol, diacetone
alcohol, ethyl (ethanol)
alcohol, methyl (methanol)
alcohol, propyl
allyl chloride
allyl iodide
aluminum bromide
ammonia
Temperature in °C (°F)
25 (77)
76.7 (170)
20 (68)
25 (77)
60 (140)
25 (77)
20 (68)
20 (68)
100 (212)
Dielectric Constant ( ε )
3.8
15
59.2
6.2
20.7
18
16.2
15.9
23
7.2
5.6
6.3
1.8
1.0
4.0
1.00058986 ±0.00000050
20.6
3.6
18.2
24.3
33.1
21.8
8.2
6.1
3.4
15