EN 60721-3-6:1993
环境条件分类.第3部分:环境参数组及其严酷程度的分类.船舶环境;替代HD 478.3.6 S1-1989;包含修改件A2-1997;IEC 721-3-6:1987+A1-1991+A2-1996
Classification of Environmental Conditions Part 3: Classification of Groups of Environmental Parameters and Their Severities Ship Environment (Incorporates Amendment A2: 1997)