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20/30416719 DC
M00000384
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18 December 2020 BS 5839-9. Fire detection and fire alarm systems for buildings. Part 9. Code of practice for the design, installation, commissioning and maintenance of emergency voice communication systems
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Verification, Speech transmission systems, Fire alarms, Emergency equipment, Fire detectors, Alarm systems, Fire safety, Buildings, Fire safety in buildings, Maintenance, Installation, Disabled people, Design, Commissioning