Plastics pipes and fittings. Determination of opacity1 Scope This International Standard specifies a method for the determination of the opacity of plastics pipes and fittings. Annex A gives guidance on the light transmission of opaque pipes and fittings. NOTE It is necessary for a pipe or fitting used for water supply which is exposed to visible light during service to be sufficiently opaque to prevent algae growth.

BS EN 527-3 specifies methods of test for the determination of the stability and the mechanical strength of the structure of office work tables and desks

• unbalances

Adopting the BS EN 61345 guidance can help you evaluate the resistance of the module to UV radiation that is an important factor to consider for long service-life and optimal power generation capabilities of PV modules

Annex B (informative) Technical pre-translation processing

BS EN 13920-7 on aluminum alloys for scraps applies to:

2) mode 4: ignores network signalled errors

Test centres and any other person involved in the testing of bone plates

Main storage areas (including receiving and dispatch areas)

print control

c) renewable bushes

This revision also takes account of underlying issues such as tree longevity

ISO 13854 discusses minimum gaps for the safety of machinery