Experiment Study on Evaluating Fire extinguishment capability by O_2 Analysis in Fire Extinguishment Experiments of Water Mist Containing Additives

By means of the experiments and calculation,it is proved that the analysis of O2 volume percentage is the brief and valid evaluation method of fire extinguishment capability of water mist containing additives.By O2 volume percentage,which is measured with the smoke analysis instrument,the O2 volume percentage variety regulation is obtained,and compared under the same experiment situation of fire extinguishment experiments of water mist containing additives and no additives.Fire extinguishment capability of water mist containing additives is judged by the analysis of variety regulation of O2 volume percentage.