Test methods specific to filling compounds of electric cables. Drop-point. Separation of oil. Lower temperature brittleness. Total acid number. Absence of corrosive components. Permittivity at temperature 23 C. D.c. resistivity at temperature 23 C and 100 C
Sand and gravel material from loose mountain rocks for the production of sand, sand and gravel mixture, gravel and crushed stone. General specifications
Safety requirements for electrical equipment for measurement, control and laboratory use. Part 031. Safety requirements for hand-held probe assemblies for electrical measurement and test
