Acoustics. Measurement of sound pressure level from service equipment in buildings. Engineering method1 Scope This document specifies methods for measuring the sound pressure level from service equipment in buildings installed to building structures. This document covers specifically measurements of sanitary installations, mechanical ventilation, heating and cooling service equipment, lifts, rubbish chutes, boilers, blowers, pumps and other auxiliary service equipment, and motor driven car park doors, but can also be applied to other equipment

BS EN 1639:2004 specifies general requirements for instruments used in the practice of dentistry and which are medical devices

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It aims to maximize quality and minimize risk within available resources to prevent or reduce the burden of disease

2 Certificate and declaration of conformity

The specified details of the pit and the grating

see BS 25999-2:2007

Calculation of the drainability index was added

General characteristics

The design applies to new installations

fabrication and performance of windows and glazed doorsets made from PVC-U extruded hollow profiles

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