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.

Requirements for recreational scuba diving service providers

Inclusion of hobs and ovens heated by means of RF energy

BS EN 61000-4-2:2009 looks at the immunity requirements and test methods for electrical and electronic equipment subject to static electric discharges

Who is BS EN 10025‑4 for

Alternative methods do not necessarily provide equivalent measurements

or tilt of the road lighting arrangement

Report findings (communicate and discuss)

process chemical plants

BS EN 754-6 specifies the tolerances on dimensions and form for aluminium and aluminium alloy cold drawn hexagonal bars having widths across flats in the range from 3 mm up to and including 80 mm

BS ISO 24638:2008 Space systems

for the purpose of drying out

BS EN 16140 specifies a method to assess possible alterations of natural stones (mainly visible sensitivity to oxidation processes) under the effect of sudden changes in temperature (thermal shock)