ASTM D5222 Test Specimens

Metaspec manufactures test specimens required by Specification ASTM D5222, which covers a high fire-point mineral oil based insulating fluid used as a dielectric and cooling medium. High fire-point insulating oil, unlike conventional mineral insulating oil, has a fire-point of at least 300C. This type of insulating oil can also be referred to as ‘less flammable’ mineral insulating oil.


The following is a list of tests in Specification ASTM D5222 that require test specimens. Some of these tests may be customized for this specification. Click on the test method number for more information about specimens required for each test.

To learn more about this specification, click HERE.