ASTM International - ASTM D3215-93
Standard Test Method for Measurement of the Specific Electrical Impedance of Electrical-Grade Magnesium Oxide for Use in Sheathed-Type Heating Elements
|Publication Date:||15 March 1993|
1.1 This test method covers the determination of specific electrical impedance of electrical-grade magnesium oxide by externally heating a test cell to elevated temperatures using typical materials.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.