[Verification of the laboratories based on the program of the control of reliability of toxicological analyses of biological materials 1985-1989].

The evaluation of work of laboratories over the period between 1985 and 1989 is presented made by the Institute of Occupational Medicine in Lódź within the programme of reliability control of toxicological analyses. The analysis made it possible to select all properly working laboratories, as a result of a strict verification. The examination of collected material indicates a need to introduce serious organizational changes in preparing toxicological analyses of biological material. The changes should result in reducing the number of laboratories which perform toxicological analyses and founding several central laboratories active in particular regions of the country. The newly founded centres should participate in the control programmes organized by the Institute of Occupational Medicine in Lódź which would enable the laboratories to get attestation to perform toxicological analyses of biological material.