The 1980 ILO classification of radiographs of the pneumoconioses.

The 1980 ILO classification of radiographs of the pneumoconioses has undergone revision and improvement in response to increases in knowledge and international concerns. Its goal is to standardize the reading and reporting of radiographic manifestations of the inhalation of dust so that international epidemiologic comparisons are possible. It remains an imperfect instrument, but "... although total elimination of variation is impossible, some measure of control can be achieved."