Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the Approximation of the Laws of the Member States Concerning Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres
欧洲议会和理事会1994年3月23日关于成员国关于潜在爆炸性环境中使用的设备和保护系统的法律近似性的94/9/EC指令