NF E37-102-3-2000 往复式内燃机.在潜在爆炸环境下使用的发动机设计和构造的安全性要求.第3部分:在可燃性粉尘环境中使用的 II 组发动机.
Reciprocating internal combustion engines - Safety requirements for design and construction of engines for use in potentially explosive atmospheres - Part 3 : group II engines for use in flammable dust atmospheres.