1999DS/HD 488 S1:1999 Gassing of insulating liquids under electrical stress and ionization
1986DS/IEC 628:1986 Gassing of insulating liquids under electrical stress and ionization
DS/IEC 628:1986 Gassing of insulating liquids under electrical stress and ionization was changed to DS/HD 488 S1:1999 Gassing of insulating liquids under electrical stress and ionization.