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Erhaltung des kulturellen Erbes
Edition
2022-06
Stahlrohrleitungen
Grundnormen, Technische Lieferbedingungen
Edition
2021-02
Energiemanagement
Energiemanagementsysteme und Energieaudits
Edition
2019-07
Mechanische Verbindungselemente 5
Grundnormen
Edition
2018-11
Facility Management und Instandhaltung
Normen, Technische Spezifikation
Edition
2021-03
79/869/EWGVV NW
Administrative regulations for the application of the EC directive on the quality requirements on surface waters for the procuring of drinking water in the member states of June 16, 1975
Edition
1981-07-03
75/440/EWGRdErl NW
Administrative regulations for the application of the EEC-directive of June 16, 1975 regarding the quality requirements on surface waters for the drinking water procurement in the member states
Edition
1977-06-18
93/113/EWGVerz
List of enzymes, micro-organisms and their preparations in animal nutrition permitted for use in individual member states
Edition
1996-09-11
79/869/EWGErl HE
Directive of the Council on the measuring methods as well as on the frequency of sampling and analysis of surface waters for the procurement of drinking water in the member states
Edition
1980-04-23
Wasserversorgung, Abwassertechnik, Wasserbau
Begriffe
Edition
2021-02
