2007UNE-EN 60450:2005/A1:2007 Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials (IEC 60450:2004/A1:2007).
2005UNE-EN 60450:2005 Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials