| Заглавие на английском языке | Common test methods for insulating and sheathing materials of electric and optical cables - Part 51:Methods specific to filling compounds - Drop point - Separation of oil - Lower temperature brittleness - Total acid number - Absence of corrosive components - Permittivity at 23в„ѓ - DC resistivity at 23в„ѓ and 100в„ѓ |