NA 022

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

DIN EN 61099 ; VDE 0375-1:2011-06 [CURRENT] references following documents:

Document number Edition Title
IEC 61203 1992-12 Synthetic organic esters for electrical purposes; guide for maintenance of transformer esters in equipment More 
ISO 5661 1983-10 Petroleum products; Hydrocarbon liquids; Determination of refractive index More