【简答题】
环管10%CO注入方法。
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答案
1、检查并打通流程（关排气阀，打开CO管线上排放线前后手阀）；
2、打开钢瓶瓶头阀，调整减压阀后压力在6-7MPa；
3、确认CO全部注入系统（钢瓶压力下降，至减压阀前后压力一致）；
4、恢复流程（关钢瓶瓶头阀，关CO管线上排放线前后手阀，开排放阀）。
解析
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