PD 6531:2018 Queries and interpretations on BS 5839-1īS 5839-1:2017 -Fire detection and fire alarm systems for buildings. Code of practice for the design, installation, commissioning and maintenance of fire detection and fire alarm systems in domestic premises Part 6: Code of practice for the design, installation, commissioning and maintenance of fire detection and fire alarm systems in domestic buildingsīS 5839-6:2019 Fire detection and fire alarm systems for buildings. Code of practice for the design, installation, commissioning and maintenance of fire detection and fire alarm systems in domestic premises. BS 5839: fire detection & alarm systems for buildingsīS 5839-9:2021 Fire detection and fire alarm systems for buildings - Code of practice for the design, installation, commissioning and maintenance of emergency voice communication systemsīS 5839-6:2019+A1:2020 Fire detection and fire alarm systems for buildings.