NF R18-702-2-1992
道路车辆.安装在毛载重量大于 3.5 吨的商用车辆配套式加热系统.第2部分:气体运行的丁烷/丙烷加热系统
Road vehicles. Self sustained heating systems installed on commercial vehicles over 3,5 T gvw(R). Part 2 : specific safety requirements for gaz operated butan/propan heating systems.