铁路设施。机车车辆用电气设备。第4部分：电工元件。交流断路器规则。
Railway applications - Electric equipment for rolling stock - Part 4: electrotechnical components - Rules for AC circuit-breakers.
航空航天系列。电气和光学连接的元件。试验方法。第512部分：密封的连接件外壳的非移动固定件的效果。
Aerospace series - Elements of electrical and optical connection - Test methods - Part 512: effectiveness of non-removable fixing of hermetically sealed connector shell.
电子元件。自动运输用零部件的包装。第1部分： 连续胶带上带轴向引线的元件用胶带包装。
Electronic - components. parkaging of components for automatic handling. part 1 : tape packaging of components with axial leads on continous tapes.
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