Sound system equipment - MicrophonesBS EN 60268 4: 2010 Sound system equipment. Microphones BS EN 60268 4 specifies methods of measurement for the electrical impedance, sensitivity, directional response pattern, dynamic range and external influences of sound system microphones, and also details the characteristics to be specified by the manufacturer. BS EN 60268 4 applies to sound system microphones for all applications for speech and music. It does not apply to measurement microphones,

4 Apparatus and materials

BS EN 50673 is beneficial to control the voltage field around the centre conductor so that the voltage distributes more uniformly across the surrounding insulation system in the bushing

data concentrators

and configuration of intrusion and hold-up alarm systems (I&HASs) that incorporate alarm confirmation technology

PAS 55-2 gives you the tools to apply your understanding of PAS 55 asset management recommendations

Who is ISO 13942- Bonded abrasive products for

for some types of meter installations the market now comprises several distinct box designs

and in one of the surface conditions given

ISO 22313 is generic and applicable to all sizes and types of organizations

Food and beverage

radiant temperature asymmetry

Electrical engineering professionals