本欧洲标准规定了符合EN3 7要求的便携式灭火器的设计，型式试验，制造和检验规定;与压力风险有关的金属体。 EN 3的这一部分适用于最大允许压力PS低于或等于30巴的便携式灭火器，并含有非易爆，不易燃，无毒和非氧化性液体。 本欧洲标准也适用于金属推进剂气瓶的标记（见附件E）。 本欧洲标准不适用于二氧化碳灭火器。 附件A给出形成便携式灭火器的不同部件的分类

This European Standard specifies the rules of design, type testing, fabrication and inspection control of portable fire extinguishers which comply with the requirements of EN 3 7; with metallic bodies as far as pressure risk is concerned. This part of EN 3 applies to portable fire extinguishers of which the maximum allowable pressure PS is lower than or equal to 30 bar and containing non-explosive, non-flammable, non-toxic and non-oxidising fluids. This European Standard also applies to the marking of metallic propellant gas cartridges (see Annex E). This European Standard does not apply to carbon dioxide fire extinguishers. NOTE Annex A gives the classification of the different parts forming the portable fire extinguisher.