scope:

This document specifies requirements, test methods and performance criteria for fire detectors which detect smoke in air ducts in buildings as a part of a fire detection and fire alarm system or as an actuator for a fire protection system. For the testing of other types of smoke detectors, or smoke detectors working on different principles, this document can be used only for guidance. Duct smoke detectors with special characteristics and developed for specific risks are not covered by this document. NOTE Certain types of detector contain radioactive materials. The national requirements for radiation protection differ from country to country and are not specified in this standard.