title: [Hygienic chemical aspects of ion-exchange membranes (author's transl)].
mesh_terms: D005503:Food Additives / Q000592:standards; D007475:Ion Exchange Resins; D008567:Membranes, Artificial
chemical_list: D005503:Food Additives; D007475:Ion Exchange Resins; D008567:Membranes, Artificial