Plastics piping systems for renovation of underground water supply networks - Part 3: Lining with close-fit pipes (ISO 11298-3:2018); German version EN ISO 11298-3:2018— 28 стр.
Codes of practice for drinking water installations - Part 200: Installation Type A (closed system) - Planning, components, apparatus, materials; DVGW code of practice— 51 стр.
Codes of practice for drinking water installations - Part 100: Protection of drinking water, drinking water quality control; DVGW code of practice— 19 стр.
Plastics piping systems for renovation of underground water supply networks - Part 1: General (ISO 11298-1:2018); German version EN ISO 11298-1:2018— 26 стр.
Plastics piping systems - Thermoplastics shafts or risers for inspection chambers and manholes - Determination of resistance against surface and traffic loading; German version EN 14802:2005— 12 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 16 стр.