Central drinking water supply - Guide lines regarding requirements for drinking water, planning, construction, operation and maintenance of plants - Technical rule of the DVGW— 10 стр.
Private and individual drinking water supply; governing principles relating to the requirements to be met by drinking water; design, construction and operation of the supply systems; DVGW; code of practice— 16 стр.
Precast unreinforced and reinforced concrete components for manholes over buried drains and sewers - Dimensions and technical delivery conditions— 16 стр.
Pipe-lines of high-density PE (high-density polyethylene) and low-density PE (low density polyethylene) for drinking water supply; pipes, pipe connections and fittings for pipe-lines— 6 стр.
Plastics piping systems for water supply - Unplasticized poly(vinyl chloride) (PVC-U) - Part 4: Valves and ancillary equipment; German version EN 1452-4:1999— 18 стр.
Plastics piping systems for water supply - Unplasticized poly(vinyl chloride) (PVC-U) - Part 5: Fitness for purpose of the system; German version EN 1452-5:1999— 12 стр.
Contract procedures for building works - Part C: General technical specifications for building works; General rules for all kinds of building works— 12 стр.
German construction contract procedures - Part C: General technical specifications for building works - General rules for all kinds of building works— 15 стр.
