German standard methods for the examination of water, waste water and sludge; summary indices of actions and substances (group H); water hardness (H 6)— 4 стр.
German standard methods for the examination of water, waste water and sludge; microbiological methods (group K); determination of reproductive germs using the membrane filter method (K5)— 5 стр.
German standard methods for the analysis of water, waste water and sludge; Microbiological methods (group K); Detection of Pseudomonas aeruginosa (K8)— 10 стр.
Softeners (cation exchangers) for drinking water installation - Part 100: Requirements for application of softeners in accordance with DIN EN 14743— 13 стр.
Water conditioning equipment inside buildings - Softeners - Requirements for performance, safety and testing; German version EN 14743:2005+A1:2007— 26 стр.
Water conditioning equipment inside buildings - Softeners - Requirements for performance, safety and testing; German version EN 14743:2005+A1:2007— 26 стр.
Softeners (cation exchangers) for drinking water installation - Part 100: Requirements for application of softeners in accordance with DIN EN 14743— 13 стр.