ASTM D 2900 : 1990 : R1997 : EDT 1
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Standard Test Method for Accelerated Life Test of Electrical Grade Magnesium Oxide as Used in Sheathed-Type Electric Heating Elements (Withdrawn 2003)
Hardcopy , PDF
05-11-2013
English
10-09-1997
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL 10.02, 2001 Describes accelerated life testing of electrical grade magnesium oxide under thermal cycling to raised temperature. Determines rate at which electrical insulation impedance or test current through insulation changes with time and time span resulting in complete failure of test cell.
| Committee |
D 09
|
| DocumentType |
Test Method
|
| Pages |
4
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Withdrawn
|
1.1 This test method covers the accelerated life testing of electrical grade magnesium oxide (MgO) under conditions involving thermal cycling to an elevated temperature. The test determines both the rate at which electrical insulation impedance (Note 1) or test current through the insulation changes with time and the time span resulting in complete failure of a test cell incorporating the sample under test.
Note 1-At test temperatures, capacitive and inductive reactance are negligible, and therefore impedance values are considered essentially resistive.1.2 This standard does not purport to address all of the safety problems 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. For specific safety precaution, see 9.4.1.
1.3 The values stated in acceptable metric units are to be regarded as the standard.
| ASTM D 2755 : 1990 : R1997 : EDT 1 | Standard Test Method of Sampling and Reduction to Test Weight of Electrical Grade Magnesium Oxide (Withdrawn 2003) |
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