Chemicals used for treatment of water intended for human consumption - Calcium carbonate, high-calcium lime and half-burnt dolomite - Test methods; German version EN 12485:2001— 48 стр.
Products used for treatment of water intended for human consumption - Inorganic supporting and filtering materials - Definitions; Trilingual version EN 12901:1999— 9 стр.
Products used for treatment of water intended for human consumption - Inorganic supporting and filtering materials - Methods of test; German version EN 12902:2004— 36 стр.
