Helmholtz (unit)
The Helmholtz was an internationally not recognized unit for the electrical double-layer moment proposed by Edward Armand Guggenheim before 1969 , named after the German physicist Hermann von Helmholtz .
1 Helmholtz = 1 Debye / Ångström² (D / Ų) = 3.336 · 10 −20 coulombs / meter (C / m)