Dissolved Gas Analysis (ASTM D3612)

The DGA test detects various gases that are dissolved in the insulating oil. The amount of gas is measured in parts per million (ppm) and will indicate the types of stress, whether thermal or electrical, that occur within the transformer.

Dielectric Breakdown Voltage Test (ASTM D1816)

The DBV test determines the strength of an insulating oil sample to withstand electrical voltage without failure. Contaminants such as moisture or particulars can compromise the insulation properties of oil.

Power Factor / Dissipation Factor Test (ASTM D924)

The oil power factor test measures the leakage current through an insulating oil. The test also determines dielectric losses of the oil or the energy that is dissipated as heat insulating materials.

Relative Permittivity / Dielectric Constant (ASTM D924)

Relative permittivity is the ratio of the capacitance of a capacitor using that material as a dielectric, compared with a similar capacitor that has vacuum as its dielectric.

SPECIFIC RESISTANCE / RESISTIVITY (ATM D1169)

The resistivity of a liquid is a measure of its electrical insulating properties under conditions comparable to those of the test. 

Furan Analysis HPLC (ASTM D5837)

This test method has been used to successfully test for furanic compounds in mineral insulating oil, silicone fluid, high fire point electrical insulating oils of mineral origin, askarels, and perchloroethylene-based dielectric fluids.

Corrosive Sulfur Test (ASTM D1275B)

The primary purpose of the test is to determine if any corrosive sulfur compounds in the oil will react with the copper strip to turn it gray or black.

Corrosive sulfur testing lets you find corrosive sulfur levels early on, so you can take steps to protect dielectric strength and overall performance.

Moisture Content Test (ASTM D1533)

Even in minute quantities, water or moisture is extremely dangerous for power equipment. Moisture accelerates the deterioration of insulating oil and paper insulation.