between two saturated
KCl
bridges inserted into two solutions separated by a membrane. The solutions need not be in equilibrium with one another and need not contain any
colloidal material.
Source:
PAC, 1972, 31, 577
(Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix
II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry)
on page 619