Insulating Liquids

Prime Testing Group Ltd. offers the following testing services:

Insulating Liquids

IEC 60867

Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons

ASTM D1903

Standard Practice for Determining the Coefficient of Thermal Expansion of Electrical Insulating Liquids of Petroleum Origin, and Askarels

ISO 3675

Crude petroleum and liquid petroleum products - Laboratory determination of density - Hydrometer method

ISO 3104

Petroleum products - Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity

ISO 2719

Determination of flash point - Pensky-Martens closed cup method

ISO 3016

Petroleum products - Determination of pour point

IEC 60814

Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration

ISO 5662

Petroleum products - Electrical insulating oils - Detection of corrosive sulfur

IEC 60156

Insulating liquids - Determination of the breakdown voltage at power frequency - Test method

IEC 60247

Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity

IEC 60628

Gassing of insulating liquids under electrical stress and ionization