PN E04555-36-1989 Electrical and electronic products Classification of environmental conditions Classification of groups of environmental parameters and their severities Ship environment [Translation of IEC Publication 721-3-6 (1987)]
1989PN E04555-36-1989 Electrical and electronic products Classification of environmental conditions Classification of groups of environmental parameters and their severities Ship environment [Translation of IEC Publication 721-3-6 (1987)]