规定了地下煤矿用柴油发动机系统（DES）排气排放型式试验的试验设备、试验循环、性能和报告要求。它适用于防火和防爆DES。

Specifies the test equipment, test cycles, performance and reporting requirements for type testing of exhaust emissions for diesel engine systems (DES) to be used in underground coal mines. It applies to fire-protected and explosion-protected DES.