JIS C 60721-3-0:2022 Classification of environmental conditions -- Part 3-0: Classification of groups of environmental parameters and their severities -- Introduction
2022JIS C 60721-3-0:2022 Classification of environmental conditions -- Part 3-0: Classification of groups of environmental parameters and their severities -- Introduction
1995JIS C 60721-3-0:1995 Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Introduction