Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium (ISO 6222:1999); German version EN ISO 6222:1999— 8 стр.
Water quality - Sampling - Part 3: Guidance on the preservation and handling of water samples (ISO 5667-3:2003); German version EN ISO 5667-3:2003, Corrigenda to DIN EN ISO 5667-3:2004-05— 2 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.
Softeners (cation exchangers) for drinking water installation - Part 100: Requirements for application of softeners in accordance with DIN EN 14743— 13 стр.
Methods of soil investigations for agricultural engineering - Chemical laboratory tests - Part 10: Testing and evaluation of water for irrigation— 11 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.
Microbiology of food, animal feed and water - Preparation, production, storage and performance testing of culture media (ISO 11133:2014, Corrected version 2014-11-01); German version EN ISO 11133:2014— 113 стр.
Microbiology of food, animal feed and water - Preparation, production, storage and performance testing of culture media (ISO 11133:2014 + Amd 1:2018); German version EN ISO 11133:2014 + A1:2018— 120 стр.
