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下列关于乙炔气瓶等气瓶的使用单位和操作人员在使用气瓶时应做到合理使用、正确操作的要求中正确的有( )。A.
近距离移动气瓶时,应手盘瓶肩转动瓶底,移动距离较远时,可用轻便小车运送。气瓶在工地使用时,应将其放在专用车辆上或将其固定使用,严禁抛、滚、滑、翻等操作
B.
使用单位应做到专瓶专用,不得擅自更改气瓶的钢印和颜色标记,气瓶使用时,一般放,并应有防止倾倒的措施
C.
除了使用氧气瓶外,在使用乙炔气瓶等气瓶时,操作者应仔细检查自己的双手、手套、工具、减压器、瓶阀等有无沾染油脂,凡有油脂的,必须脱脂干净后,方能操作
D.
在安装减压阀器或汇流排导管时,应检查卡箍或连接螺帽的螺纹完好情况,以免工作时脱开引起事故。用于连接气瓶的减压器、接头、导管和压力表,标记,专门用在一类气瓶上,严防混用
E.
瓶内气体不得用尽,必须留有剩余压力,以防混入其他气体或杂质。永久气体气瓶的剩余压力,应不小于0.05MPa;液化气体气瓶应留有不少于0.5%~1.0%规定充装量的剩余气体
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