BS EN 81-21. Safety rules for the construction & installation of lifts. Lifts for the transport of persons & goods. Part 21. New passenger & goods passenger lifts in existing building Lifts, Goods lifts, Passenger lifts, Service lifts, Safety measures, Equipment safety, Installation, Lifting equipment, Hazards, Lift wells, Safety devices, Doors, Trap doors, Landings, Control systems, Verification, Testing, Instructions for use, Inspection