1. BS EN 54-26:2015. Fire detection and fire alarm systems - Part 26: Carbon monoxide detectors - Point detectors

2. BS EN 54-27:2015. Fire detection and fire alarm systems - Part 27: Duct smoke detectors

3. BS EN 54-28:2016. Fire detection and fire alarm systems - Part 28: Non-resettabl e li ne-type heat detectors

4. BS EN 54-29:2015. Fire detection and fire alarm systems - Part 29: Multi-sensor fire detectors - Point detectors using a combination of smoke and heat sensors

5. BS EN 54-3:2014. Fire detection and fire alarm systems - Part 3: Fire alarm devices - Sounders

6. BS EN 54-30:2015. Fire detection and fire alarm systems - Part 30: Multi-sensor fire detectors - Point detectors using a combination of carbon monoxide and heat sensors

7. BS EN 54-31:2014. Fire detection and fire alarm systems - Part 31: Multi-sensor fire detectors - Point detectors using a combination of smoke, carbon monoxide and optionally heat sensors

8. BS EN 54-4:1998. Fire detection and fire alarm systems - Part 4: Power supply equipment

9. BS EN 54-5:2001. Fire detection and fire alarm systems - Part 5: Heat detectors - Point detectors

10. BS EN 54-7:2001. Fire detection and fire alarm systems - Part 7: Smoke detectors - Point detectors using scattered light, transmitted light or ionization