Moldova standards PDF

Classification of environmental conditions. Part 3- Classification of groups of environmental parameters and their severities. Ship environment. CEI/IEC 721-3-6:1987. Original standard IEC 60721-3-6-1987 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 60721-3-6-2025

Amendment 1 - Classification of environmental conditions. Part 3- Classification of groups of environmental parameters and their severities. Ship environment. Original standard IEC 60721-3-6-1987 amd1-1991 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 60721-3-6-2025

Amendment 2 - Classification of environmental conditions. Part 3- Classification of groups of environmental parameters and their severities. Ship environment. Original standard IEC 60721-3-6-1987 amd2-1996 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 60721-3-6-2025

Classification of environmental conditions - Part 3-7: Classification of groups of environmental parameters and their severities - Portable and non-stationary use. Original standard IEC 60721-3-7-2002 in PDF full version. Additional info + preview on request

Document status: Active

Classification of environmental conditions - Part 3-9- Classification of groups of environmental parameters and their severities - Microclimates inside products. IEC 60721-3-9:2024-04(en-fr). Original standard IEC 60721-3-9-2024 in PDF full version. Additional info + preview on request

Document status: Active

Guide to the lightning impulse and switching impulse testing of power transformers and reactors. Original standard IEC 60722-1982 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 60076-4-2002