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1.1 This test method covers two procedures for the determination of insulation resistance and volume resistivity of ceramic insulating materials at elevated temperatures between 100 and 500°C.
1.1.1 Procedure A is suitable for obtaining a curve of the resistance versus temperature characteristics of a single specimen over a wide temperature range.
1.1.2 Procedure B is more suitable for rapid testing of large numbers of specimens at a fixed temperature.
1.2 These properties shall be determined in accordance with Test Methods D257, except that the special procedures described in this method shall be used.
1.3 The values stated in inch-pound units are to be regarded as standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are found in Section 7.