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DIN IEC 60721-2-4:1990-06

Отменен
Electrical engineering; classification of environmental conditions; environmental conditions appearing in nature, solar radiation and temperature; identical with IEC 60721-2-4:1987 (status as of 1988) — 12 стр.
ICS
19.040 Environmental. Including testing equipment / Климатические испытания. Включая испытательное оборудование