Relative permittivity of armour bedding

Symbol
$\epsilon_{ab}$
Choices
MaterialValue
PE2.3
PVC8.0
EPR2.3
POC2.3
IIR3.2
NR3.2
PP2.21
SiR3.2
CR5.0
CSM2.3
CJ5.0
RSP5.0
BIT5.0
fPOC2.3
fPP2.21
fPE2.3
fPVC8.0
tape5.0