Maximum allowable concentrations (MAC) of microorganism-producers, bacterial products and their components in the atmospheric air of inhabited places. Amendment No. 2 to GN 2.1.6.711-98
Reference impact safe levels (RISL) of pollutants in air of working zone. Amendment No. 2 to hygienic normatives "Reference impact safe levels (RISL) of harmful substances in occupational air: GN 2.2.5.687-98" dated 04.02.98
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