Drain and sewer systems outside buildings - Generalities and definitions Ingestion-build-137917 The systems for designating wrought

The systems for designating wrought aluminium and aluminium alloys are described in BS EN 573-1 Numerical designation system and BS EN 573-2 Chemical symbol-based designation system

Material specifications

any product category (hardware

they should be regarded as additional to the measurement of physical parameters

floor constructions

Drain and sewer systems outside buildings - Generalities and definitions Ingestion-build-137917 The systems for designating wroughtThis part of BS EN 752 covers general matters and sets out definitions of terms that relate to the functional requirements of drain and sewer systems outside buildings. These definitions are not intended to be legal definitions. This European Standard applies to drain and sewer systems, which operate essentially under gravity, from the point where the sewerage leaves a building or roof drainage system, or enters a road gully, to the point where it is