LST HD 478.2.6 S1-2002 Classification of environmental conditions. Part 2: Environmental conditions appearing in nature. Earthquake vibration and shock (IEC 60721-2-6:1990)
2002LST HD 478.2.6 S1-2002 Classification of environmental conditions. Part 2: Environmental conditions appearing in nature. Earthquake vibration and shock (IEC 60721-2-6:1990)