European scheme for the classification of gas appliances according to the method of evacuation of the products of combustion (types); German version CR 1749
根据燃烧产物排放方法（类型）对燃气器具进行分类的欧洲方案；德文版CR 1749

2001-01-01

European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types); German version CEN/TR 1749:2009
根据燃烧产物（类型）疏散方法对燃气器具进行分类的欧洲方案；德文版CEN/TR 1749:2009

2010-02-01

Classification of gas appliances according to the method of supplying combustion air and of evacuation of the combustion products (types)
根据燃烧空气供应和燃烧产物排放方法对燃气器具进行分类（类型）

2020-01-23

Commission Implementing Decision (EU) 2015/2414 of 17 December 2015 on the publication with a restriction in the Official Journal of the European Union of the reference of harmonised standard EN 521:2006 ‘Specifications for dedicated liquefied petroleum gas appliances — Portable vapour pressure liquefied petroleum gas appliances’ in accordance with Directive 2009/142/EC of the European Parliament and of the Council (notified under document C(2015
根据欧盟指令2009/142/EC 欧盟委员会2015年12月17日第2015/2414号实施决定（EU）限制在欧盟官方公报上引用协调标准EN 521:2006“专用液化石油气装置规范-便携式蒸汽压液化石油气装置”议会和理事会（根据C（2015）号文件通知

2015-12-17