3. terminology
3-1 Definitions:
3.1.1 electrical conductivity—refer to Test Methods D 1125.
3.1.2 electrical resistivity—refer to Test Methods D 1125.
3.1.3 For definitions of other terms used in these test
methods, refer to Terminology D 1129.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 cell constant—the ratio of the length of the path, L
(cm) and the cross-sectional area of the solution, A (cm "),
between the electrodes of a conductivity/resistivity cell, with
units of cm-1. In high purity water measurements, the cell
constant is normally between 0.001 and 0.1 cm-1 to prevent
electrical interference. This is lower than the 1 cm -1 of the
standard centimetre cube and is taken into account by direct
reading instrument ranges that are matched with specific cell
constants.