According to the situations such as many products,many system links,many control indicators and difficult management manage in Nantong Coal Preparation Plant,some position quantification measures were taken,such as scientific quantitative index,detailed executive program and advanced date collection management,strict marking execution,rewards or punishment promptly,and so on.

This paper expounds the important significance of implementing the performance management and carrying out the quantitative post assessment,and puts forward some basic ideas for the library to carry out the quantitative post assessment.

In order to know about current situation of test workers who expose to benzene series in one petroleum enterprise,benzene series occupational hazards are tested for 6 test jobs.