The plane ideally marking the boundary between two phases.
The term should not be used synonymously with @I03118@.
PAC, 1986, 58, 437. (Interphases in systems of conducting phases (Recommendations 1985)) on page 439 [Terms] [Paper]
See also:
Orange Book, 2nd ed., p. 251 [Terms] [Book]
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 583 [Terms] [Paper]