KS C IEC 60721-2-6-2003(2023) Classification of environmental conditions — Part 2: Environmental conditions appearing in nature — Earthquake vibration and shock
2023KS C IEC 60721-2-6-2023 Classification of Environmental Conditions Part 2: Natural Environmental Conditions Seismic Vibrations and Shocks
0000 KS C IEC 60721-2-6-2003(2018)
2003KS C IEC 60721-2-6:2003 Classification of environmental conditions-Part 2:Environmental conditions appearing in nature-Earthquake vibration and shock