Portable fire extinguishers - Part 8: Additional requirements to EN 3-7 for the construction, resistance to pressure and mechanical tests for extinguishers with a maximum allowable pressure equal to or lower than 30 bar
便携式灭火器.第8部分:EN 3-7对最大允许压力等于或低于30bar的灭火器的结构、耐压性和机械试验的附加要求