Formerly under the jurisdiction of Committee D27 on Electrical Insulating Liquids and Gases, these test methods were withdrawn in January 2015. This standard is being withdrawn without replacement because no current technical contact is available to review this standard. Without a review, the standard is being balloted for removal without replacement.

Certain synthetic dielectric fluids are used in the manufacture of capacitors because of their chemical, thermal, and electrical properties as well as their environmental acceptability.

Properties of a synthetic dielectric fluid differ from those of petroleum based fluids. Design considerations and quality control are influenced by these properties as measured by the appropriate tests.

Each test method has its own brief statement describing its significance.

1.1 These test methods cover testing synthetic dielectric fluids currently in use for capacitors. The methods are generally suitable for specification acceptance, factory control, referee testing, and research. Their applicability to future fluids has not been determined.

1.2 The scope of some of the test methods listed here apply to petroleum oils, but have been found suitable for synthetic fluids.

1.3 For methods relating to polybutene fluids refer to Specification D 2296.

1.4 For methods relating to silicone fluids refer to Test Methods D 2225.

1.5 A list of properties and standards are as follows:

This standard does not purport to address all of the safety problems, 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.