Maximum permissible level (MPL) of pollution for process equipment by 2-chlorovinyldichloroarsine (lewisite) at chemical weapon storage and destruction facilities
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