Guide to siphonic roof drainage systemsBS 8490: 2007 Guide to siphonic roof drainage systems BS 8490 is the British Standard applies to roof drainage systems using circular section pipes that operate under siphonic action. It does not apply to siphonic drainage systems using rectangular or trapezoidal section conduits for water conveyance. It gives information and provides guidance on design parameters, installation, verification and maintenance needs of siphonic roof drainage systems.

Omission of markings

Choice of appropriate emergency lighting systems

BS EN 60335-2-34 applies to motor-compressors tested separately

General design characteristics have been removed and transferred to BS EN ISO 14978:2018

Capacity calculations for liquids

which is applicable to all mineral fertilizers

BS EN 60060-1 provides definitions and requirements for high voltage tests

Manufacturers of rotating electrical machines

BS EN 527-3 provides the strength and durability characteristics test

Why should you use BS EN ISO 15118‑8- Vehicle to grid communication interface

and other such applications

Contents of BS EN 3777: