According to analysis of 66 H2S poisoning accidents,these accidents often happen in the process of the purge,sealing,disassemble and install of the equipments and pipes.

• 通过对66起H2S中毒事故的分析,指出在设备及管线的吹扫、堵漏、拆卸、安装作业过程中较易发生H2S中毒事故;