In order to find out the wiping efficiency of pollution level on different materials surface at a certain nuclear facility for maintenance and decommission,and provide accurate background investigation and decontamination data,so measured the wiping efficiency of common materials such as marble,stainless steel,rubber,cement and wooden floor.The test make known,wiping efficiency ranges from eight to twelve percent on material surface other than smooth stainless steel in the nuclear facility.indicating that with the long-term progress of maintenance and decommission work,the permeability of radioactive isotopes is basically the same into different materials,eventually forming a certain depth of fixed pollution.;At the same time,roughness is also a key factor about wiping efficiency with the same material.
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