Sampling programs of reevaluation of nuclear power plants for plant life extension

Sampling inspection of nuclear power plants is used for quality assurance, reinspection and reevaluation, and verification of compliance with different regulations. There are four principal advantages of sampling over a complete inspection of a population. These advantages are discussed in this paper. The cost of inspection is proportional to the sample size. The data can be collected and evaluated quickly with a sample rather than a complete population. The other advantages of sampling are greater scope and greater accuracy