ASTM D6180: Standard Test Method for Stability of Insulating Oils of Petroleum Origin under Electrical Discharge
SDO: ASTM: ASTM International
DOD Adopted ANSI Approved Approved
This test method covers a laboratory technique that measures the stability of new, used, or reclaimed insulating oils, similar to those described in Specification D 3487 in the presence of a controlled electric discharge. When subjected to this type of discharge, insulating oils absorb energy and produce gases as well as ionized molecules (charge carriers). The quantity of these decay products can be measured and can provide an indication of the stability of oils under the conditions of this test.
The gases are retained in the discharge cell and their pressure measured. The charge carriers remain in the test specimen. The change in the dissipation factor before and after the discharge is determined.
The values stated in SI units are to be regarded as the standard. The values stated in parentheses are for information only.
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 cautionary statements are given in 5.3 and 7.1.
- dissipation factor
- electrical discharge
- gas formation
- gassing tendency
- insulating oil
- oxidation stability
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