The measurement of extremely high resistances

Because of the importance of performance, economy, and efficiency in today's military and industrial markets, emphasis is placed increasingly upon knowledge of the properties of materials. Insulation resistance (the reciprocal of electrical conductance) has not often been of major concern to the user of materials as the insulation resistance of a component or unit is generally several orders of magnitude greater than is required for satisfactory performance. The measurement of insulation resistance has, however, been found to be a valuable tool in materials research and quality control.