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.
Water conditioning equipment inside buildings - Active media filters - Requirements for performance, safety and testing; German version EN 14898:2006— 29 стр.
Water conditioning equipment inside buildings - Active media filters - Requirements for performance, safety and testing; German version EN 14898:2006+A1:2007— 32 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 14 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 12 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 12 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 16 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Groundwater lowering— 11 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 16 стр.