Definition and trend of derived working limits of surface contamination

Surface contamination is a question often encountered in practice and is an important radiation source to people involved. Like other derived working limits, its accuracy depends on the degree of approximation of the chosen model to reality. As practical situations vary enormously, the calculation is very approximative and involves a lot of unknown factors. These issues are discussed, the related articles in 'Basic Standards of Radiation Hygiene and Protection' are explained, and general results are given in